Claude Message Batches API - Java SDK Reference

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Published: 2026-05-10 · Source: crawler_authoritative

Tình huống

Java SDK reference for the Anthropic Message Batches API, enabling developers to process multiple Messages API requests asynchronously in batches that can take up to 24 hours to complete.

Insight

The Message Batches API processes multiple Message creation requests asynchronously. Batches begin processing immediately upon creation and can take up to 24 hours to complete. Each batch request must include a unique custom_id field for matching results to requests, since results are returned in .jsonl format without guaranteed ordering. The API provides six operations: Create (POST /v1/messages/batches) accepts BatchCreateParams with a list of Request objects containing custom_id and Params (which mirrors the Messages API parameters including maxTokens, messages, model, system, tools, thinking, cacheControl, temperature, topP, topK, stopSequences, stream, metadata, outputConfig, serviceTier, inferenceGeo, container, and toolChoice); Retrieve (GET /v1/messages/batches/{message_batch_id}) is idempotent and used for polling batch status; List (GET /v1/messages/batches) returns batches in reverse chronological order with pagination via afterId/beforeId cursors and limit parameter (default 20, range 1-1000); Cancel (POST /v1/messages/batches/{message_batch_id}/cancel) transitions batch to canceling state; Delete (DELETE /v1/messages/batches/{message_batch_id}) only works on finished batches; Results (GET /v1/messages/batches/{message_batch_id}/results) streams results as .jsonl with MessageBatchIndividualResponse containing customId and result (one of MessageBatchSucceededResult, MessageBatchErroredResult, MessageBatchCanceledResult, or MessageBatchExpiredResult). The MessageBatch response object includes: id, createdAt, expiresAt (24 hours after creation), endedAt (when processing ends), archivedAt, cancelInitiatedAt, processingStatus (IN_PROGRESS/CANCELING/ENDED), requestCounts (succeeded/errored/canceled/expired/processing), resultsUrl (URL to .jsonl file), and type (always “message_batch”). Models available include claude-opus-4-7, claude-mythos-preview, claude-opus-4-6, claude-sonnet-4-6, claude-haiku-4-5, claude-opus-4-5, claude-sonnet-4-5, claude-opus-4-1, claude-opus-4-0, claude-sonnet-4-0, and claude-3-haiku-20240307. Content blocks support text, image (base64/url with jpeg/png/gif/webp), document (pdf/plain text/content), search_result, thinking, redacted_thinking, tool_use, tool_result, server_tool_use, web_search_tool_result, web_fetch_tool_result, code_execution_tool_result, bash_code_execution_tool_result, text_editor_code_execution_tool_result, tool_search_tool_result, and container_upload types. Cache control breakpoints use CacheControlEphemeral with TTL options of 5m (default) or 1h.

Hành động

Initialize the client using AnthropicOkHttpClient.fromEnv() from com.anthropic.client.okhttp. For Create: build BatchCreateParams with .addRequest() containing a Request with unique customId and Params specifying model, maxTokens, and messages (e.g., .addUserMessage()). Call client.messages().batches().create(params). For Retrieve: call client.messages().batches().retrieve(messageBatchId) using the returned batch ID. For List: call client.messages().batches().list() with optional BatchListParams for pagination. For Cancel: call client.messages().batches().cancel(messageBatchId) before processing ends. For Delete: first cancel if in-progress, then call client.messages().batches().delete(messageBatchId). For Results: call client.messages().batches().resultsStreaming(messageBatchId) which returns StreamResponse<MessageBatchIndividualResponse> streaming each result line. Use the custom_id field to correlate results with original requests. Poll retrieve() until processingStatus equals ENDED, then fetch resultsUrl for the .jsonl file containing all results. Batches auto-expire 24 hours after creation. Cancellation may not cancel requests that were already non-interruptible.

Kết quả

Returns a MessageBatch object containing id, processingStatus (IN_PROGRESS, CANCELING, or ENDED), requestCounts (succeeded, errored, canceled, expired, processing tallies), resultsUrl (URL to .jsonl file when ended), createdAt, expiresAt, endedAt, and metadata. Individual results contain customId for correlation and a result that is one of: MessageBatchSucceededResult (contains Message with content, model, stopReason, usage), MessageBatchErroredResult (contains ErrorResponse), MessageBatchCanceledResult, or MessageBatchExpiredResult.

Điều kiện áp dụng

Batches process asynchronously over up to 24 hours. Results are not ordered by request sequence—use custom_id for correlation. Delete only works on completed batches. Cancel may not affect non-interruptible in-progress requests.


Nội dung gốc (Original)

Batches

Create

MessageBatch messages().batches().create(BatchCreateParamsparams, RequestOptionsrequestOptions = RequestOptions.none())

post /v1/messages/batches

Send a batch of Message creation requests.

The Message Batches API can be used to process multiple Messages API requests at once. Once a Message Batch is created, it begins processing immediately. Batches can take up to 24 hours to complete.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchCreateParams params

    • List<Request> requests

      List of requests for prompt completion. Each is an individual request to create a Message.

      • String customId

        Developer-provided ID created for each request in a Message Batch. Useful for matching results to requests, as results may be given out of request order.

        Must be unique for each request within the Message Batch.

      • Params params

        Messages API creation parameters for the individual request.

        See the Messages API reference for full documentation on available parameters.

        • long maxTokens

          The maximum number of tokens to generate before stopping.

          Note that our models may stop before reaching this maximum. This parameter only specifies the absolute maximum number of tokens to generate.

          Set to 0 to populate the prompt cache without generating a response.

          Different models have different maximum values for this parameter. See models for details.

        • List<MessageParam> messages

          Input messages.

          Our models are trained to operate on alternating user and assistant conversational turns. When creating a new Message, you specify the prior conversational turns with the messages parameter, and the model then generates the next Message in the conversation. Consecutive user or assistant turns in your request will be combined into a single turn.

          Each input message must be an object with a role and content. You can specify a single user-role message, or you can include multiple user and assistant messages.

          If the final message uses the assistant role, the response content will continue immediately from the content in that message. This can be used to constrain part of the model’s response.

          Example with a single user message:

          [{"role": "user", "content": "Hello, Claude"}]

          Example with multiple conversational turns:

          [
            {"role": "user", "content": "Hello there."},
            {"role": "assistant", "content": "Hi, I'm Claude. How can I help you?"},
            {"role": "user", "content": "Can you explain LLMs in plain English?"},
          ]

          Example with a partially-filled response from Claude:

          [
            {"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
            {"role": "assistant", "content": "The best answer is ("},
          ]

          Each input message content may be either a single string or an array of content blocks, where each block has a specific type. Using a string for content is shorthand for an array of one content block of type "text". The following input messages are equivalent:

          {"role": "user", "content": "Hello, Claude"}
          {"role": "user", "content": [{"type": "text", "text": "Hello, Claude"}]}

          See input examples.

          Note that if you want to include a system prompt, you can use the top-level system parameter — there is no "system" role for input messages in the Messages API.

          There is a limit of 100,000 messages in a single request.

          • Content content

            • String

            • List<ContentBlockParam>

              • class TextBlockParam:

                • String text

                • JsonValue; type "text"constant

                  • TEXT("text")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<List<TextCitationParam>> citations

                  • class CitationCharLocationParam:

                    • String citedText

                    • long documentIndex

                    • Optional<String> documentTitle

                    • long endCharIndex

                    • long startCharIndex

                    • JsonValue; type "char_location"constant

                      • CHAR_LOCATION("char_location")
                  • class CitationPageLocationParam:

                    • String citedText

                    • long documentIndex

                    • Optional<String> documentTitle

                    • long endPageNumber

                    • long startPageNumber

                    • JsonValue; type "page_location"constant

                      • PAGE_LOCATION("page_location")
                  • class CitationContentBlockLocationParam:

                    • String citedText

                      The full text of the cited block range, concatenated.

                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                    • long documentIndex

                    • Optional<String> documentTitle

                    • long endBlockIndex

                      Exclusive 0-based end index of the cited block range in the source’s content array.

                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                    • long startBlockIndex

                      0-based index of the first cited block in the source’s content array.

                    • JsonValue; type "content_block_location"constant

                      • CONTENT_BLOCK_LOCATION("content_block_location")
                  • class CitationWebSearchResultLocationParam:

                    • String citedText

                    • String encryptedIndex

                    • Optional<String> title

                    • JsonValue; type "web_search_result_location"constant

                      • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                    • String url

                  • class CitationSearchResultLocationParam:

                    • String citedText

                      The full text of the cited block range, concatenated.

                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                    • long endBlockIndex

                      Exclusive 0-based end index of the cited block range in the source’s content array.

                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                    • long searchResultIndex

                      0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                      Counted separately from document_index; server-side web search results are not included in this count.

                    • String source

                    • long startBlockIndex

                      0-based index of the first cited block in the source’s content array.

                    • Optional<String> title

                    • JsonValue; type "search_result_location"constant

                      • SEARCH_RESULT_LOCATION("search_result_location")
              • class ImageBlockParam:

                • Source source

                  • class Base64ImageSource:

                    • String data

                    • MediaType mediaType

                      • IMAGE_JPEG("image/jpeg")

                      • IMAGE_PNG("image/png")

                      • IMAGE_GIF("image/gif")

                      • IMAGE_WEBP("image/webp")

                    • JsonValue; type "base64"constant

                      • BASE64("base64")
                  • class UrlImageSource:

                    • JsonValue; type "url"constant

                      • URL("url")
                    • String url

                • JsonValue; type "image"constant

                  • IMAGE("image")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

              • class DocumentBlockParam:

                • Source source

                  • class Base64PdfSource:

                    • String data

                    • JsonValue; mediaType "application/pdf"constant

                      • APPLICATION_PDF("application/pdf")
                    • JsonValue; type "base64"constant

                      • BASE64("base64")
                  • class PlainTextSource:

                    • String data

                    • JsonValue; mediaType "text/plain"constant

                      • TEXT_PLAIN("text/plain")
                    • JsonValue; type "text"constant

                      • TEXT("text")
                  • class ContentBlockSource:

                    • Content content

                      • String

                      • List<ContentBlockSourceContent>

                        • class TextBlockParam:

                          • String text

                          • JsonValue; type "text"constant

                            • TEXT("text")
                          • Optional<CacheControlEphemeral> cacheControl

                            Create a cache control breakpoint at this content block.

                            • JsonValue; type "ephemeral"constant

                              • EPHEMERAL("ephemeral")
                            • Optional<Ttl> ttl

                              The time-to-live for the cache control breakpoint.

                              This may be one the following values:

                              • 5m: 5 minutes
                              • 1h: 1 hour

                              Defaults to 5m.

                              • TTL_5M("5m")

                              • TTL_1H("1h")

                          • Optional<List<TextCitationParam>> citations

                            • class CitationCharLocationParam:

                              • String citedText

                              • long documentIndex

                              • Optional<String> documentTitle

                              • long endCharIndex

                              • long startCharIndex

                              • JsonValue; type "char_location"constant

                                • CHAR_LOCATION("char_location")
                            • class CitationPageLocationParam:

                              • String citedText

                              • long documentIndex

                              • Optional<String> documentTitle

                              • long endPageNumber

                              • long startPageNumber

                              • JsonValue; type "page_location"constant

                                • PAGE_LOCATION("page_location")
                            • class CitationContentBlockLocationParam:

                              • String citedText

                                The full text of the cited block range, concatenated.

                                Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                              • long documentIndex

                              • Optional<String> documentTitle

                              • long endBlockIndex

                                Exclusive 0-based end index of the cited block range in the source’s content array.

                                Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                              • long startBlockIndex

                                0-based index of the first cited block in the source’s content array.

                              • JsonValue; type "content_block_location"constant

                                • CONTENT_BLOCK_LOCATION("content_block_location")
                            • class CitationWebSearchResultLocationParam:

                              • String citedText

                              • String encryptedIndex

                              • Optional<String> title

                              • JsonValue; type "web_search_result_location"constant

                                • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                              • String url

                            • class CitationSearchResultLocationParam:

                              • String citedText

                                The full text of the cited block range, concatenated.

                                Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                              • long endBlockIndex

                                Exclusive 0-based end index of the cited block range in the source’s content array.

                                Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                              • long searchResultIndex

                                0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                                Counted separately from document_index; server-side web search results are not included in this count.

                              • String source

                              • long startBlockIndex

                                0-based index of the first cited block in the source’s content array.

                              • Optional<String> title

                              • JsonValue; type "search_result_location"constant

                                • SEARCH_RESULT_LOCATION("search_result_location")
                        • class ImageBlockParam:

                          • Source source

                            • class Base64ImageSource:

                              • String data

                              • MediaType mediaType

                                • IMAGE_JPEG("image/jpeg")

                                • IMAGE_PNG("image/png")

                                • IMAGE_GIF("image/gif")

                                • IMAGE_WEBP("image/webp")

                              • JsonValue; type "base64"constant

                                • BASE64("base64")
                            • class UrlImageSource:

                              • JsonValue; type "url"constant

                                • URL("url")
                              • String url

                          • JsonValue; type "image"constant

                            • IMAGE("image")
                          • Optional<CacheControlEphemeral> cacheControl

                            Create a cache control breakpoint at this content block.

                            • JsonValue; type "ephemeral"constant

                              • EPHEMERAL("ephemeral")
                            • Optional<Ttl> ttl

                              The time-to-live for the cache control breakpoint.

                              This may be one the following values:

                              • 5m: 5 minutes
                              • 1h: 1 hour

                              Defaults to 5m.

                              • TTL_5M("5m")

                              • TTL_1H("1h")

                    • JsonValue; type "content"constant

                      • CONTENT("content")
                  • class UrlPdfSource:

                    • JsonValue; type "url"constant

                      • URL("url")
                    • String url

                • JsonValue; type "document"constant

                  • DOCUMENT("document")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<CitationsConfigParam> citations

                  • Optional<Boolean> enabled
                • Optional<String> context

                • Optional<String> title

              • class SearchResultBlockParam:

                • List<TextBlockParam> content

                  • String text

                  • JsonValue; type "text"constant

                    • TEXT("text")
                  • Optional<CacheControlEphemeral> cacheControl

                    Create a cache control breakpoint at this content block.

                    • JsonValue; type "ephemeral"constant

                      • EPHEMERAL("ephemeral")
                    • Optional<Ttl> ttl

                      The time-to-live for the cache control breakpoint.

                      This may be one the following values:

                      • 5m: 5 minutes
                      • 1h: 1 hour

                      Defaults to 5m.

                      • TTL_5M("5m")

                      • TTL_1H("1h")

                  • Optional<List<TextCitationParam>> citations

                    • class CitationCharLocationParam:

                      • String citedText

                      • long documentIndex

                      • Optional<String> documentTitle

                      • long endCharIndex

                      • long startCharIndex

                      • JsonValue; type "char_location"constant

                        • CHAR_LOCATION("char_location")
                    • class CitationPageLocationParam:

                      • String citedText

                      • long documentIndex

                      • Optional<String> documentTitle

                      • long endPageNumber

                      • long startPageNumber

                      • JsonValue; type "page_location"constant

                        • PAGE_LOCATION("page_location")
                    • class CitationContentBlockLocationParam:

                      • String citedText

                        The full text of the cited block range, concatenated.

                        Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                      • long documentIndex

                      • Optional<String> documentTitle

                      • long endBlockIndex

                        Exclusive 0-based end index of the cited block range in the source’s content array.

                        Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                      • long startBlockIndex

                        0-based index of the first cited block in the source’s content array.

                      • JsonValue; type "content_block_location"constant

                        • CONTENT_BLOCK_LOCATION("content_block_location")
                    • class CitationWebSearchResultLocationParam:

                      • String citedText

                      • String encryptedIndex

                      • Optional<String> title

                      • JsonValue; type "web_search_result_location"constant

                        • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                      • String url

                    • class CitationSearchResultLocationParam:

                      • String citedText

                        The full text of the cited block range, concatenated.

                        Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                      • long endBlockIndex

                        Exclusive 0-based end index of the cited block range in the source’s content array.

                        Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                      • long searchResultIndex

                        0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                        Counted separately from document_index; server-side web search results are not included in this count.

                      • String source

                      • long startBlockIndex

                        0-based index of the first cited block in the source’s content array.

                      • Optional<String> title

                      • JsonValue; type "search_result_location"constant

                        • SEARCH_RESULT_LOCATION("search_result_location")
                • String source

                • String title

                • JsonValue; type "search_result"constant

                  • SEARCH_RESULT("search_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<CitationsConfigParam> citations

                  • Optional<Boolean> enabled
              • class ThinkingBlockParam:

                • String signature

                • String thinking

                • JsonValue; type "thinking"constant

                  • THINKING("thinking")
              • class RedactedThinkingBlockParam:

                • String data

                • JsonValue; type "redacted_thinking"constant

                  • REDACTED_THINKING("redacted_thinking")
              • class ToolUseBlockParam:

                • String id

                • Input input

                • String name

                • JsonValue; type "tool_use"constant

                  • TOOL_USE("tool_use")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<Caller> caller

                  Tool invocation directly from the model.

                  • class DirectCaller:

                    Tool invocation directly from the model.

                    • JsonValue; type "direct"constant

                      • DIRECT("direct")
                  • class ServerToolCaller:

                    Tool invocation generated by a server-side tool.

                    • String toolId

                    • JsonValue; type "code_execution_20250825"constant

                      • CODE_EXECUTION_20250825("code_execution_20250825")
                  • class ServerToolCaller20260120:

                    • String toolId

                    • JsonValue; type "code_execution_20260120"constant

                      • CODE_EXECUTION_20260120("code_execution_20260120")
              • class ToolResultBlockParam:

                • String toolUseId

                • JsonValue; type "tool_result"constant

                  • TOOL_RESULT("tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<Content> content

                  • String

                  • List<Block>

                    • class TextBlockParam:

                      • String text

                      • JsonValue; type "text"constant

                        • TEXT("text")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                      • Optional<List<TextCitationParam>> citations

                        • class CitationCharLocationParam:

                          • String citedText

                          • long documentIndex

                          • Optional<String> documentTitle

                          • long endCharIndex

                          • long startCharIndex

                          • JsonValue; type "char_location"constant

                            • CHAR_LOCATION("char_location")
                        • class CitationPageLocationParam:

                          • String citedText

                          • long documentIndex

                          • Optional<String> documentTitle

                          • long endPageNumber

                          • long startPageNumber

                          • JsonValue; type "page_location"constant

                            • PAGE_LOCATION("page_location")
                        • class CitationContentBlockLocationParam:

                          • String citedText

                            The full text of the cited block range, concatenated.

                            Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                          • long documentIndex

                          • Optional<String> documentTitle

                          • long endBlockIndex

                            Exclusive 0-based end index of the cited block range in the source’s content array.

                            Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                          • long startBlockIndex

                            0-based index of the first cited block in the source’s content array.

                          • JsonValue; type "content_block_location"constant

                            • CONTENT_BLOCK_LOCATION("content_block_location")
                        • class CitationWebSearchResultLocationParam:

                          • String citedText

                          • String encryptedIndex

                          • Optional<String> title

                          • JsonValue; type "web_search_result_location"constant

                            • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                          • String url

                        • class CitationSearchResultLocationParam:

                          • String citedText

                            The full text of the cited block range, concatenated.

                            Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                          • long endBlockIndex

                            Exclusive 0-based end index of the cited block range in the source’s content array.

                            Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                          • long searchResultIndex

                            0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                            Counted separately from document_index; server-side web search results are not included in this count.

                          • String source

                          • long startBlockIndex

                            0-based index of the first cited block in the source’s content array.

                          • Optional<String> title

                          • JsonValue; type "search_result_location"constant

                            • SEARCH_RESULT_LOCATION("search_result_location")
                    • class ImageBlockParam:

                      • Source source

                        • class Base64ImageSource:

                          • String data

                          • MediaType mediaType

                            • IMAGE_JPEG("image/jpeg")

                            • IMAGE_PNG("image/png")

                            • IMAGE_GIF("image/gif")

                            • IMAGE_WEBP("image/webp")

                          • JsonValue; type "base64"constant

                            • BASE64("base64")
                        • class UrlImageSource:

                          • JsonValue; type "url"constant

                            • URL("url")
                          • String url

                      • JsonValue; type "image"constant

                        • IMAGE("image")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                    • class SearchResultBlockParam:

                      • List<TextBlockParam> content

                        • String text

                        • JsonValue; type "text"constant

                          • TEXT("text")
                        • Optional<CacheControlEphemeral> cacheControl

                          Create a cache control breakpoint at this content block.

                          • JsonValue; type "ephemeral"constant

                            • EPHEMERAL("ephemeral")
                          • Optional<Ttl> ttl

                            The time-to-live for the cache control breakpoint.

                            This may be one the following values:

                            • 5m: 5 minutes
                            • 1h: 1 hour

                            Defaults to 5m.

                            • TTL_5M("5m")

                            • TTL_1H("1h")

                        • Optional<List<TextCitationParam>> citations

                          • class CitationCharLocationParam:

                            • String citedText

                            • long documentIndex

                            • Optional<String> documentTitle

                            • long endCharIndex

                            • long startCharIndex

                            • JsonValue; type "char_location"constant

                              • CHAR_LOCATION("char_location")
                          • class CitationPageLocationParam:

                            • String citedText

                            • long documentIndex

                            • Optional<String> documentTitle

                            • long endPageNumber

                            • long startPageNumber

                            • JsonValue; type "page_location"constant

                              • PAGE_LOCATION("page_location")
                          • class CitationContentBlockLocationParam:

                            • String citedText

                              The full text of the cited block range, concatenated.

                              Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                            • long documentIndex

                            • Optional<String> documentTitle

                            • long endBlockIndex

                              Exclusive 0-based end index of the cited block range in the source’s content array.

                              Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                            • long startBlockIndex

                              0-based index of the first cited block in the source’s content array.

                            • JsonValue; type "content_block_location"constant

                              • CONTENT_BLOCK_LOCATION("content_block_location")
                          • class CitationWebSearchResultLocationParam:

                            • String citedText

                            • String encryptedIndex

                            • Optional<String> title

                            • JsonValue; type "web_search_result_location"constant

                              • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                            • String url

                          • class CitationSearchResultLocationParam:

                            • String citedText

                              The full text of the cited block range, concatenated.

                              Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                            • long endBlockIndex

                              Exclusive 0-based end index of the cited block range in the source’s content array.

                              Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                            • long searchResultIndex

                              0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                              Counted separately from document_index; server-side web search results are not included in this count.

                            • String source

                            • long startBlockIndex

                              0-based index of the first cited block in the source’s content array.

                            • Optional<String> title

                            • JsonValue; type "search_result_location"constant

                              • SEARCH_RESULT_LOCATION("search_result_location")
                      • String source

                      • String title

                      • JsonValue; type "search_result"constant

                        • SEARCH_RESULT("search_result")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                      • Optional<CitationsConfigParam> citations

                        • Optional<Boolean> enabled
                    • class DocumentBlockParam:

                      • Source source

                        • class Base64PdfSource:

                          • String data

                          • JsonValue; mediaType "application/pdf"constant

                            • APPLICATION_PDF("application/pdf")
                          • JsonValue; type "base64"constant

                            • BASE64("base64")
                        • class PlainTextSource:

                          • String data

                          • JsonValue; mediaType "text/plain"constant

                            • TEXT_PLAIN("text/plain")
                          • JsonValue; type "text"constant

                            • TEXT("text")
                        • class ContentBlockSource:

                          • Content content

                            • String

                            • List<ContentBlockSourceContent>

                              • class TextBlockParam:

                                • String text

                                • JsonValue; type "text"constant

                                  • TEXT("text")
                                • Optional<CacheControlEphemeral> cacheControl

                                  Create a cache control breakpoint at this content block.

                                  • JsonValue; type "ephemeral"constant

                                    • EPHEMERAL("ephemeral")
                                  • Optional<Ttl> ttl

                                    The time-to-live for the cache control breakpoint.

                                    This may be one the following values:

                                    • 5m: 5 minutes
                                    • 1h: 1 hour

                                    Defaults to 5m.

                                    • TTL_5M("5m")

                                    • TTL_1H("1h")

                                • Optional<List<TextCitationParam>> citations

                                  • class CitationCharLocationParam:

                                    • String citedText

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endCharIndex

                                    • long startCharIndex

                                    • JsonValue; type "char_location"constant

                                      • CHAR_LOCATION("char_location")
                                  • class CitationPageLocationParam:

                                    • String citedText

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endPageNumber

                                    • long startPageNumber

                                    • JsonValue; type "page_location"constant

                                      • PAGE_LOCATION("page_location")
                                  • class CitationContentBlockLocationParam:

                                    • String citedText

                                      The full text of the cited block range, concatenated.

                                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endBlockIndex

                                      Exclusive 0-based end index of the cited block range in the source’s content array.

                                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                                    • long startBlockIndex

                                      0-based index of the first cited block in the source’s content array.

                                    • JsonValue; type "content_block_location"constant

                                      • CONTENT_BLOCK_LOCATION("content_block_location")
                                  • class CitationWebSearchResultLocationParam:

                                    • String citedText

                                    • String encryptedIndex

                                    • Optional<String> title

                                    • JsonValue; type "web_search_result_location"constant

                                      • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                                    • String url

                                  • class CitationSearchResultLocationParam:

                                    • String citedText

                                      The full text of the cited block range, concatenated.

                                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                                    • long endBlockIndex

                                      Exclusive 0-based end index of the cited block range in the source’s content array.

                                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                                    • long searchResultIndex

                                      0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                                      Counted separately from document_index; server-side web search results are not included in this count.

                                    • String source

                                    • long startBlockIndex

                                      0-based index of the first cited block in the source’s content array.

                                    • Optional<String> title

                                    • JsonValue; type "search_result_location"constant

                                      • SEARCH_RESULT_LOCATION("search_result_location")
                              • class ImageBlockParam:

                                • Source source

                                  • class Base64ImageSource:

                                    • String data

                                    • MediaType mediaType

                                      • IMAGE_JPEG("image/jpeg")

                                      • IMAGE_PNG("image/png")

                                      • IMAGE_GIF("image/gif")

                                      • IMAGE_WEBP("image/webp")

                                    • JsonValue; type "base64"constant

                                      • BASE64("base64")
                                  • class UrlImageSource:

                                    • JsonValue; type "url"constant

                                      • URL("url")
                                    • String url

                                • JsonValue; type "image"constant

                                  • IMAGE("image")
                                • Optional<CacheControlEphemeral> cacheControl

                                  Create a cache control breakpoint at this content block.

                                  • JsonValue; type "ephemeral"constant

                                    • EPHEMERAL("ephemeral")
                                  • Optional<Ttl> ttl

                                    The time-to-live for the cache control breakpoint.

                                    This may be one the following values:

                                    • 5m: 5 minutes
                                    • 1h: 1 hour

                                    Defaults to 5m.

                                    • TTL_5M("5m")

                                    • TTL_1H("1h")

                          • JsonValue; type "content"constant

                            • CONTENT("content")
                        • class UrlPdfSource:

                          • JsonValue; type "url"constant

                            • URL("url")
                          • String url

                      • JsonValue; type "document"constant

                        • DOCUMENT("document")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                      • Optional<CitationsConfigParam> citations

                        • Optional<Boolean> enabled
                      • Optional<String> context

                      • Optional<String> title

                    • class ToolReferenceBlockParam:

                      Tool reference block that can be included in tool_result content.

                      • String toolName

                      • JsonValue; type "tool_reference"constant

                        • TOOL_REFERENCE("tool_reference")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                • Optional<Boolean> isError

              • class ServerToolUseBlockParam:

                • String id

                • Input input

                • Name name

                  • WEB_SEARCH("web_search")

                  • WEB_FETCH("web_fetch")

                  • CODE_EXECUTION("code_execution")

                  • BASH_CODE_EXECUTION("bash_code_execution")

                  • TEXT_EDITOR_CODE_EXECUTION("text_editor_code_execution")

                  • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

                  • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

                • JsonValue; type "server_tool_use"constant

                  • SERVER_TOOL_USE("server_tool_use")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<Caller> caller

                  Tool invocation directly from the model.

                  • class DirectCaller:

                    Tool invocation directly from the model.

                    • JsonValue; type "direct"constant

                      • DIRECT("direct")
                  • class ServerToolCaller:

                    Tool invocation generated by a server-side tool.

                    • String toolId

                    • JsonValue; type "code_execution_20250825"constant

                      • CODE_EXECUTION_20250825("code_execution_20250825")
                  • class ServerToolCaller20260120:

                    • String toolId

                    • JsonValue; type "code_execution_20260120"constant

                      • CODE_EXECUTION_20260120("code_execution_20260120")
              • class WebSearchToolResultBlockParam:

                • WebSearchToolResultBlockParamContent content

                  • List<WebSearchResultBlockParam>

                    • String encryptedContent

                    • String title

                    • JsonValue; type "web_search_result"constant

                      • WEB_SEARCH_RESULT("web_search_result")
                    • String url

                    • Optional<String> pageAge

                  • class WebSearchToolRequestError:

                    • WebSearchToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • UNAVAILABLE("unavailable")

                      • MAX_USES_EXCEEDED("max_uses_exceeded")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • QUERY_TOO_LONG("query_too_long")

                      • REQUEST_TOO_LARGE("request_too_large")

                    • JsonValue; type "web_search_tool_result_error"constant

                      • WEB_SEARCH_TOOL_RESULT_ERROR("web_search_tool_result_error")
                • String toolUseId

                • JsonValue; type "web_search_tool_result"constant

                  • WEB_SEARCH_TOOL_RESULT("web_search_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<Caller> caller

                  Tool invocation directly from the model.

                  • class DirectCaller:

                    Tool invocation directly from the model.

                    • JsonValue; type "direct"constant

                      • DIRECT("direct")
                  • class ServerToolCaller:

                    Tool invocation generated by a server-side tool.

                    • String toolId

                    • JsonValue; type "code_execution_20250825"constant

                      • CODE_EXECUTION_20250825("code_execution_20250825")
                  • class ServerToolCaller20260120:

                    • String toolId

                    • JsonValue; type "code_execution_20260120"constant

                      • CODE_EXECUTION_20260120("code_execution_20260120")
              • class WebFetchToolResultBlockParam:

                • Content content

                  • class WebFetchToolResultErrorBlockParam:

                    • WebFetchToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • URL_TOO_LONG("url_too_long")

                      • URL_NOT_ALLOWED("url_not_allowed")

                      • URL_NOT_ACCESSIBLE("url_not_accessible")

                      • UNSUPPORTED_CONTENT_TYPE("unsupported_content_type")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • MAX_USES_EXCEEDED("max_uses_exceeded")

                      • UNAVAILABLE("unavailable")

                    • JsonValue; type "web_fetch_tool_result_error"constant

                      • WEB_FETCH_TOOL_RESULT_ERROR("web_fetch_tool_result_error")
                  • class WebFetchBlockParam:

                    • DocumentBlockParam content

                      • Source source

                        • class Base64PdfSource:

                          • String data

                          • JsonValue; mediaType "application/pdf"constant

                            • APPLICATION_PDF("application/pdf")
                          • JsonValue; type "base64"constant

                            • BASE64("base64")
                        • class PlainTextSource:

                          • String data

                          • JsonValue; mediaType "text/plain"constant

                            • TEXT_PLAIN("text/plain")
                          • JsonValue; type "text"constant

                            • TEXT("text")
                        • class ContentBlockSource:

                          • Content content

                            • String

                            • List<ContentBlockSourceContent>

                              • class TextBlockParam:

                                • String text

                                • JsonValue; type "text"constant

                                  • TEXT("text")
                                • Optional<CacheControlEphemeral> cacheControl

                                  Create a cache control breakpoint at this content block.

                                  • JsonValue; type "ephemeral"constant

                                    • EPHEMERAL("ephemeral")
                                  • Optional<Ttl> ttl

                                    The time-to-live for the cache control breakpoint.

                                    This may be one the following values:

                                    • 5m: 5 minutes
                                    • 1h: 1 hour

                                    Defaults to 5m.

                                    • TTL_5M("5m")

                                    • TTL_1H("1h")

                                • Optional<List<TextCitationParam>> citations

                                  • class CitationCharLocationParam:

                                    • String citedText

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endCharIndex

                                    • long startCharIndex

                                    • JsonValue; type "char_location"constant

                                      • CHAR_LOCATION("char_location")
                                  • class CitationPageLocationParam:

                                    • String citedText

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endPageNumber

                                    • long startPageNumber

                                    • JsonValue; type "page_location"constant

                                      • PAGE_LOCATION("page_location")
                                  • class CitationContentBlockLocationParam:

                                    • String citedText

                                      The full text of the cited block range, concatenated.

                                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                                    • long documentIndex

                                    • Optional<String> documentTitle

                                    • long endBlockIndex

                                      Exclusive 0-based end index of the cited block range in the source’s content array.

                                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                                    • long startBlockIndex

                                      0-based index of the first cited block in the source’s content array.

                                    • JsonValue; type "content_block_location"constant

                                      • CONTENT_BLOCK_LOCATION("content_block_location")
                                  • class CitationWebSearchResultLocationParam:

                                    • String citedText

                                    • String encryptedIndex

                                    • Optional<String> title

                                    • JsonValue; type "web_search_result_location"constant

                                      • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                                    • String url

                                  • class CitationSearchResultLocationParam:

                                    • String citedText

                                      The full text of the cited block range, concatenated.

                                      Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                                    • long endBlockIndex

                                      Exclusive 0-based end index of the cited block range in the source’s content array.

                                      Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                                    • long searchResultIndex

                                      0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                                      Counted separately from document_index; server-side web search results are not included in this count.

                                    • String source

                                    • long startBlockIndex

                                      0-based index of the first cited block in the source’s content array.

                                    • Optional<String> title

                                    • JsonValue; type "search_result_location"constant

                                      • SEARCH_RESULT_LOCATION("search_result_location")
                              • class ImageBlockParam:

                                • Source source

                                  • class Base64ImageSource:

                                    • String data

                                    • MediaType mediaType

                                      • IMAGE_JPEG("image/jpeg")

                                      • IMAGE_PNG("image/png")

                                      • IMAGE_GIF("image/gif")

                                      • IMAGE_WEBP("image/webp")

                                    • JsonValue; type "base64"constant

                                      • BASE64("base64")
                                  • class UrlImageSource:

                                    • JsonValue; type "url"constant

                                      • URL("url")
                                    • String url

                                • JsonValue; type "image"constant

                                  • IMAGE("image")
                                • Optional<CacheControlEphemeral> cacheControl

                                  Create a cache control breakpoint at this content block.

                                  • JsonValue; type "ephemeral"constant

                                    • EPHEMERAL("ephemeral")
                                  • Optional<Ttl> ttl

                                    The time-to-live for the cache control breakpoint.

                                    This may be one the following values:

                                    • 5m: 5 minutes
                                    • 1h: 1 hour

                                    Defaults to 5m.

                                    • TTL_5M("5m")

                                    • TTL_1H("1h")

                          • JsonValue; type "content"constant

                            • CONTENT("content")
                        • class UrlPdfSource:

                          • JsonValue; type "url"constant

                            • URL("url")
                          • String url

                      • JsonValue; type "document"constant

                        • DOCUMENT("document")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                      • Optional<CitationsConfigParam> citations

                        • Optional<Boolean> enabled
                      • Optional<String> context

                      • Optional<String> title

                    • JsonValue; type "web_fetch_result"constant

                      • WEB_FETCH_RESULT("web_fetch_result")
                    • String url

                      Fetched content URL

                    • Optional<String> retrievedAt

                      ISO 8601 timestamp when the content was retrieved

                • String toolUseId

                • JsonValue; type "web_fetch_tool_result"constant

                  • WEB_FETCH_TOOL_RESULT("web_fetch_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

                • Optional<Caller> caller

                  Tool invocation directly from the model.

                  • class DirectCaller:

                    Tool invocation directly from the model.

                    • JsonValue; type "direct"constant

                      • DIRECT("direct")
                  • class ServerToolCaller:

                    Tool invocation generated by a server-side tool.

                    • String toolId

                    • JsonValue; type "code_execution_20250825"constant

                      • CODE_EXECUTION_20250825("code_execution_20250825")
                  • class ServerToolCaller20260120:

                    • String toolId

                    • JsonValue; type "code_execution_20260120"constant

                      • CODE_EXECUTION_20260120("code_execution_20260120")
              • class CodeExecutionToolResultBlockParam:

                • CodeExecutionToolResultBlockParamContent content

                  Code execution result with encrypted stdout for PFC + web_search results.

                  • class CodeExecutionToolResultErrorParam:

                    • CodeExecutionToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • UNAVAILABLE("unavailable")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • JsonValue; type "code_execution_tool_result_error"constant

                      • CODE_EXECUTION_TOOL_RESULT_ERROR("code_execution_tool_result_error")
                  • class CodeExecutionResultBlockParam:

                    • List<CodeExecutionOutputBlockParam> content

                      • String fileId

                      • JsonValue; type "code_execution_output"constant

                        • CODE_EXECUTION_OUTPUT("code_execution_output")
                    • long returnCode

                    • String stderr

                    • String stdout

                    • JsonValue; type "code_execution_result"constant

                      • CODE_EXECUTION_RESULT("code_execution_result")
                  • class EncryptedCodeExecutionResultBlockParam:

                    Code execution result with encrypted stdout for PFC + web_search results.

                    • List<CodeExecutionOutputBlockParam> content

                      • String fileId

                      • JsonValue; type "code_execution_output"constant

                        • CODE_EXECUTION_OUTPUT("code_execution_output")
                    • String encryptedStdout

                    • long returnCode

                    • String stderr

                    • JsonValue; type "encrypted_code_execution_result"constant

                      • ENCRYPTED_CODE_EXECUTION_RESULT("encrypted_code_execution_result")
                • String toolUseId

                • JsonValue; type "code_execution_tool_result"constant

                  • CODE_EXECUTION_TOOL_RESULT("code_execution_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

              • class BashCodeExecutionToolResultBlockParam:

                • Content content

                  • class BashCodeExecutionToolResultErrorParam:

                    • BashCodeExecutionToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • UNAVAILABLE("unavailable")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                      • OUTPUT_FILE_TOO_LARGE("output_file_too_large")

                    • JsonValue; type "bash_code_execution_tool_result_error"constant

                      • BASH_CODE_EXECUTION_TOOL_RESULT_ERROR("bash_code_execution_tool_result_error")
                  • class BashCodeExecutionResultBlockParam:

                    • List<BashCodeExecutionOutputBlockParam> content

                      • String fileId

                      • JsonValue; type "bash_code_execution_output"constant

                        • BASH_CODE_EXECUTION_OUTPUT("bash_code_execution_output")
                    • long returnCode

                    • String stderr

                    • String stdout

                    • JsonValue; type "bash_code_execution_result"constant

                      • BASH_CODE_EXECUTION_RESULT("bash_code_execution_result")
                • String toolUseId

                • JsonValue; type "bash_code_execution_tool_result"constant

                  • BASH_CODE_EXECUTION_TOOL_RESULT("bash_code_execution_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

              • class TextEditorCodeExecutionToolResultBlockParam:

                • Content content

                  • class TextEditorCodeExecutionToolResultErrorParam:

                    • TextEditorCodeExecutionToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • UNAVAILABLE("unavailable")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                      • FILE_NOT_FOUND("file_not_found")

                    • JsonValue; type "text_editor_code_execution_tool_result_error"constant

                      • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT_ERROR("text_editor_code_execution_tool_result_error")
                    • Optional<String> errorMessage

                  • class TextEditorCodeExecutionViewResultBlockParam:

                    • String content

                    • FileType fileType

                      • TEXT("text")

                      • IMAGE("image")

                      • PDF("pdf")

                    • JsonValue; type "text_editor_code_execution_view_result"constant

                      • TEXT_EDITOR_CODE_EXECUTION_VIEW_RESULT("text_editor_code_execution_view_result")
                    • Optional<Long> numLines

                    • Optional<Long> startLine

                    • Optional<Long> totalLines

                  • class TextEditorCodeExecutionCreateResultBlockParam:

                    • boolean isFileUpdate

                    • JsonValue; type "text_editor_code_execution_create_result"constant

                      • TEXT_EDITOR_CODE_EXECUTION_CREATE_RESULT("text_editor_code_execution_create_result")
                  • class TextEditorCodeExecutionStrReplaceResultBlockParam:

                    • JsonValue; type "text_editor_code_execution_str_replace_result"constant

                      • TEXT_EDITOR_CODE_EXECUTION_STR_REPLACE_RESULT("text_editor_code_execution_str_replace_result")
                    • Optional<List<String>> lines

                    • Optional<Long> newLines

                    • Optional<Long> newStart

                    • Optional<Long> oldLines

                    • Optional<Long> oldStart

                • String toolUseId

                • JsonValue; type "text_editor_code_execution_tool_result"constant

                  • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT("text_editor_code_execution_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

              • class ToolSearchToolResultBlockParam:

                • Content content

                  • class ToolSearchToolResultErrorParam:

                    • ToolSearchToolResultErrorCode errorCode

                      • INVALID_TOOL_INPUT("invalid_tool_input")

                      • UNAVAILABLE("unavailable")

                      • TOO_MANY_REQUESTS("too_many_requests")

                      • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • JsonValue; type "tool_search_tool_result_error"constant

                      • TOOL_SEARCH_TOOL_RESULT_ERROR("tool_search_tool_result_error")
                  • class ToolSearchToolSearchResultBlockParam:

                    • List<ToolReferenceBlockParam> toolReferences

                      • String toolName

                      • JsonValue; type "tool_reference"constant

                        • TOOL_REFERENCE("tool_reference")
                      • Optional<CacheControlEphemeral> cacheControl

                        Create a cache control breakpoint at this content block.

                        • JsonValue; type "ephemeral"constant

                          • EPHEMERAL("ephemeral")
                        • Optional<Ttl> ttl

                          The time-to-live for the cache control breakpoint.

                          This may be one the following values:

                          • 5m: 5 minutes
                          • 1h: 1 hour

                          Defaults to 5m.

                          • TTL_5M("5m")

                          • TTL_1H("1h")

                    • JsonValue; type "tool_search_tool_search_result"constant

                      • TOOL_SEARCH_TOOL_SEARCH_RESULT("tool_search_tool_search_result")
                • String toolUseId

                • JsonValue; type "tool_search_tool_result"constant

                  • TOOL_SEARCH_TOOL_RESULT("tool_search_tool_result")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

              • class ContainerUploadBlockParam:

                A content block that represents a file to be uploaded to the container Files uploaded via this block will be available in the container’s input directory.

                • String fileId

                • JsonValue; type "container_upload"constant

                  • CONTAINER_UPLOAD("container_upload")
                • Optional<CacheControlEphemeral> cacheControl

                  Create a cache control breakpoint at this content block.

                  • JsonValue; type "ephemeral"constant

                    • EPHEMERAL("ephemeral")
                  • Optional<Ttl> ttl

                    The time-to-live for the cache control breakpoint.

                    This may be one the following values:

                    • 5m: 5 minutes
                    • 1h: 1 hour

                    Defaults to 5m.

                    • TTL_5M("5m")

                    • TTL_1H("1h")

          • Role role

            • USER("user")

            • ASSISTANT("assistant")

        • Model model

          The model that will complete your prompt.

          See models for additional details and options.

          • CLAUDE_OPUS_4_7("claude-opus-4-7")

            Frontier intelligence for long-running agents and coding

          • CLAUDE_MYTHOS_PREVIEW("claude-mythos-preview")

            New class of intelligence, strongest in coding and cybersecurity

          • CLAUDE_OPUS_4_6("claude-opus-4-6")

            Frontier intelligence for long-running agents and coding

          • CLAUDE_SONNET_4_6("claude-sonnet-4-6")

            Best combination of speed and intelligence

          • CLAUDE_HAIKU_4_5("claude-haiku-4-5")

            Fastest model with near-frontier intelligence

          • CLAUDE_HAIKU_4_5_20251001("claude-haiku-4-5-20251001")

            Fastest model with near-frontier intelligence

          • CLAUDE_OPUS_4_5("claude-opus-4-5")

            Premium model combining maximum intelligence with practical performance

          • CLAUDE_OPUS_4_5_20251101("claude-opus-4-5-20251101")

            Premium model combining maximum intelligence with practical performance

          • CLAUDE_SONNET_4_5("claude-sonnet-4-5")

            High-performance model for agents and coding

          • CLAUDE_SONNET_4_5_20250929("claude-sonnet-4-5-20250929")

            High-performance model for agents and coding

          • CLAUDE_OPUS_4_1("claude-opus-4-1")

            Exceptional model for specialized complex tasks

          • CLAUDE_OPUS_4_1_20250805("claude-opus-4-1-20250805")

            Exceptional model for specialized complex tasks

          • CLAUDE_OPUS_4_0("claude-opus-4-0")

            Powerful model for complex tasks

          • CLAUDE_OPUS_4_20250514("claude-opus-4-20250514")

            Powerful model for complex tasks

          • CLAUDE_SONNET_4_0("claude-sonnet-4-0")

            High-performance model with extended thinking

          • CLAUDE_SONNET_4_20250514("claude-sonnet-4-20250514")

            High-performance model with extended thinking

          • CLAUDE_3_HAIKU_20240307("claude-3-haiku-20240307")

            Fast and cost-effective model

        • Optional<CacheControlEphemeral> cacheControl

          Top-level cache control automatically applies a cache_control marker to the last cacheable block in the request.

          • JsonValue; type "ephemeral"constant

            • EPHEMERAL("ephemeral")
          • Optional<Ttl> ttl

            The time-to-live for the cache control breakpoint.

            This may be one the following values:

            • 5m: 5 minutes
            • 1h: 1 hour

            Defaults to 5m.

            • TTL_5M("5m")

            • TTL_1H("1h")

        • Optional<String> container

          Container identifier for reuse across requests.

        • Optional<String> inferenceGeo

          Specifies the geographic region for inference processing. If not specified, the workspace’s default_inference_geo is used.

        • Optional<Metadata> metadata

          An object describing metadata about the request.

          • Optional<String> userId

            An external identifier for the user who is associated with the request.

            This should be a uuid, hash value, or other opaque identifier. Anthropic may use this id to help detect abuse. Do not include any identifying information such as name, email address, or phone number.

        • Optional<OutputConfig> outputConfig

          Configuration options for the model’s output, such as the output format.

          • Optional<Effort> effort

            All possible effort levels.

            • LOW("low")

            • MEDIUM("medium")

            • HIGH("high")

            • XHIGH("xhigh")

            • MAX("max")

          • Optional<JsonOutputFormat> format

            A schema to specify Claude’s output format in responses. See structured outputs

            • Schema schema

              The JSON schema of the format

            • JsonValue; type "json_schema"constant

              • JSON_SCHEMA("json_schema")
        • Optional<ServiceTier> serviceTier

          Determines whether to use priority capacity (if available) or standard capacity for this request.

          Anthropic offers different levels of service for your API requests. See service-tiers for details.

          • AUTO("auto")

          • STANDARD_ONLY("standard_only")

        • Optional<List<String>> stopSequences

          Custom text sequences that will cause the model to stop generating.

          Our models will normally stop when they have naturally completed their turn, which will result in a response stop_reason of "end_turn".

          If you want the model to stop generating when it encounters custom strings of text, you can use the stop_sequences parameter. If the model encounters one of the custom sequences, the response stop_reason value will be "stop_sequence" and the response stop_sequence value will contain the matched stop sequence.

        • Optional<Boolean> stream

          Whether to incrementally stream the response using server-sent events.

          See streaming for details.

        • Optional<System> system

          System prompt.

          A system prompt is a way of providing context and instructions to Claude, such as specifying a particular goal or role. See our guide to system prompts.

          • String

          • List<TextBlockParam>

            • String text

            • JsonValue; type "text"constant

              • TEXT("text")
            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<List<TextCitationParam>> citations

              • class CitationCharLocationParam:

                • String citedText

                • long documentIndex

                • Optional<String> documentTitle

                • long endCharIndex

                • long startCharIndex

                • JsonValue; type "char_location"constant

                  • CHAR_LOCATION("char_location")
              • class CitationPageLocationParam:

                • String citedText

                • long documentIndex

                • Optional<String> documentTitle

                • long endPageNumber

                • long startPageNumber

                • JsonValue; type "page_location"constant

                  • PAGE_LOCATION("page_location")
              • class CitationContentBlockLocationParam:

                • String citedText

                  The full text of the cited block range, concatenated.

                  Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                • long documentIndex

                • Optional<String> documentTitle

                • long endBlockIndex

                  Exclusive 0-based end index of the cited block range in the source’s content array.

                  Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                • long startBlockIndex

                  0-based index of the first cited block in the source’s content array.

                • JsonValue; type "content_block_location"constant

                  • CONTENT_BLOCK_LOCATION("content_block_location")
              • class CitationWebSearchResultLocationParam:

                • String citedText

                • String encryptedIndex

                • Optional<String> title

                • JsonValue; type "web_search_result_location"constant

                  • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                • String url

              • class CitationSearchResultLocationParam:

                • String citedText

                  The full text of the cited block range, concatenated.

                  Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                • long endBlockIndex

                  Exclusive 0-based end index of the cited block range in the source’s content array.

                  Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                • long searchResultIndex

                  0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                  Counted separately from document_index; server-side web search results are not included in this count.

                • String source

                • long startBlockIndex

                  0-based index of the first cited block in the source’s content array.

                • Optional<String> title

                • JsonValue; type "search_result_location"constant

                  • SEARCH_RESULT_LOCATION("search_result_location")
        • Optional<Double> temperature

          Amount of randomness injected into the response.

          Defaults to 1.0. Ranges from 0.0 to 1.0. Use temperature closer to 0.0 for analytical / multiple choice, and closer to 1.0 for creative and generative tasks.

          Note that even with temperature of 0.0, the results will not be fully deterministic.

        • Optional<ThinkingConfigParam> thinking

          Configuration for enabling Claude’s extended thinking.

          When enabled, responses include thinking content blocks showing Claude’s thinking process before the final answer. Requires a minimum budget of 1,024 tokens and counts towards your max_tokens limit.

          See extended thinking for details.

          • class ThinkingConfigEnabled:

            • long budgetTokens

              Determines how many tokens Claude can use for its internal reasoning process. Larger budgets can enable more thorough analysis for complex problems, improving response quality.

              Must be ≥1024 and less than max_tokens.

              See extended thinking for details.

            • JsonValue; type "enabled"constant

              • ENABLED("enabled")
            • Optional<Display> display

              Controls how thinking content appears in the response. When set to summarized, thinking is returned normally. When set to omitted, thinking content is redacted but a signature is returned for multi-turn continuity. Defaults to summarized.

              • SUMMARIZED("summarized")

              • OMITTED("omitted")

          • class ThinkingConfigDisabled:

            • JsonValue; type "disabled"constant

              • DISABLED("disabled")
          • class ThinkingConfigAdaptive:

            • JsonValue; type "adaptive"constant

              • ADAPTIVE("adaptive")
            • Optional<Display> display

              Controls how thinking content appears in the response. When set to summarized, thinking is returned normally. When set to omitted, thinking content is redacted but a signature is returned for multi-turn continuity. Defaults to summarized.

              • SUMMARIZED("summarized")

              • OMITTED("omitted")

        • Optional<ToolChoice> toolChoice

          How the model should use the provided tools. The model can use a specific tool, any available tool, decide by itself, or not use tools at all.

          • class ToolChoiceAuto:

            The model will automatically decide whether to use tools.

            • JsonValue; type "auto"constant

              • AUTO("auto")
            • Optional<Boolean> disableParallelToolUse

              Whether to disable parallel tool use.

              Defaults to false. If set to true, the model will output at most one tool use.

          • class ToolChoiceAny:

            The model will use any available tools.

            • JsonValue; type "any"constant

              • ANY("any")
            • Optional<Boolean> disableParallelToolUse

              Whether to disable parallel tool use.

              Defaults to false. If set to true, the model will output exactly one tool use.

          • class ToolChoiceTool:

            The model will use the specified tool with tool_choice.name.

            • String name

              The name of the tool to use.

            • JsonValue; type "tool"constant

              • TOOL("tool")
            • Optional<Boolean> disableParallelToolUse

              Whether to disable parallel tool use.

              Defaults to false. If set to true, the model will output exactly one tool use.

          • class ToolChoiceNone:

            The model will not be allowed to use tools.

            • JsonValue; type "none"constant

              • NONE("none")
        • Optional<List<ToolUnion>> tools

          Definitions of tools that the model may use.

          If you include tools in your API request, the model may return tool_use content blocks that represent the model’s use of those tools. You can then run those tools using the tool input generated by the model and then optionally return results back to the model using tool_result content blocks.

          There are two types of tools: client tools and server tools. The behavior described below applies to client tools. For server tools, see their individual documentation as each has its own behavior (e.g., the web search tool).

          Each tool definition includes:

          • name: Name of the tool.
          • description: Optional, but strongly-recommended description of the tool.
          • input_schema: JSON schema for the tool input shape that the model will produce in tool_use output content blocks.

          For example, if you defined tools as:

          [
            {
              "name": "get_stock_price",
              "description": "Get the current stock price for a given ticker symbol.",
              "input_schema": {
                "type": "object",
                "properties": {
                  "ticker": {
                    "type": "string",
                    "description": "The stock ticker symbol, e.g. AAPL for Apple Inc."
                  }
                },
                "required": ["ticker"]
              }
            }
          ]

          And then asked the model “What’s the S&P 500 at today?”, the model might produce tool_use content blocks in the response like this:

          [
            {
              "type": "tool_use",
              "id": "toolu_01D7FLrfh4GYq7yT1ULFeyMV",
              "name": "get_stock_price",
              "input": { "ticker": "^GSPC" }
            }
          ]

          You might then run your get_stock_price tool with {"ticker": "^GSPC"} as an input, and return the following back to the model in a subsequent user message:

          [
            {
              "type": "tool_result",
              "tool_use_id": "toolu_01D7FLrfh4GYq7yT1ULFeyMV",
              "content": "259.75 USD"
            }
          ]

          Tools can be used for workflows that include running client-side tools and functions, or more generally whenever you want the model to produce a particular JSON structure of output.

          See our guide for more details.

          • class Tool:

            • InputSchema inputSchema

              JSON schema for this tool’s input.

              This defines the shape of the input that your tool accepts and that the model will produce.

              • JsonValue; type "object"constant

                • OBJECT("object")
              • Optional<Properties> properties

              • Optional<List<String>> required

            • String name

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<String> description

              Description of what this tool does.

              Tool descriptions should be as detailed as possible. The more information that the model has about what the tool is and how to use it, the better it will perform. You can use natural language descriptions to reinforce important aspects of the tool input JSON schema.

            • Optional<Boolean> eagerInputStreaming

              Enable eager input streaming for this tool. When true, tool input parameters will be streamed incrementally as they are generated, and types will be inferred on-the-fly rather than buffering the full JSON output. When false, streaming is disabled for this tool even if the fine-grained-tool-streaming beta is active. When null (default), uses the default behavior based on beta headers.

            • Optional<List<InputExample>> inputExamples

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

            • Optional<Type> type

              • CUSTOM("custom")
          • class ToolBash20250124:

            • JsonValue; name "bash"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • BASH("bash")
            • JsonValue; type "bash_20250124"constant

              • BASH_20250124("bash_20250124")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<List<InputExample>> inputExamples

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class CodeExecutionTool20250522:

            • JsonValue; name "code_execution"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • CODE_EXECUTION("code_execution")
            • JsonValue; type "code_execution_20250522"constant

              • CODE_EXECUTION_20250522("code_execution_20250522")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class CodeExecutionTool20250825:

            • JsonValue; name "code_execution"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • CODE_EXECUTION("code_execution")
            • JsonValue; type "code_execution_20250825"constant

              • CODE_EXECUTION_20250825("code_execution_20250825")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class CodeExecutionTool20260120:

            Code execution tool with REPL state persistence (daemon mode + gVisor checkpoint).

            • JsonValue; name "code_execution"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • CODE_EXECUTION("code_execution")
            • JsonValue; type "code_execution_20260120"constant

              • CODE_EXECUTION_20260120("code_execution_20260120")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class MemoryTool20250818:

            • JsonValue; name "memory"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • MEMORY("memory")
            • JsonValue; type "memory_20250818"constant

              • MEMORY_20250818("memory_20250818")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<List<InputExample>> inputExamples

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class ToolTextEditor20250124:

            • JsonValue; name "str_replace_editor"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • STR_REPLACE_EDITOR("str_replace_editor")
            • JsonValue; type "text_editor_20250124"constant

              • TEXT_EDITOR_20250124("text_editor_20250124")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<List<InputExample>> inputExamples

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class ToolTextEditor20250429:

            • JsonValue; name "str_replace_based_edit_tool"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • STR_REPLACE_BASED_EDIT_TOOL("str_replace_based_edit_tool")
            • JsonValue; type "text_editor_20250429"constant

              • TEXT_EDITOR_20250429("text_editor_20250429")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<List<InputExample>> inputExamples

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class ToolTextEditor20250728:

            • JsonValue; name "str_replace_based_edit_tool"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • STR_REPLACE_BASED_EDIT_TOOL("str_replace_based_edit_tool")
            • JsonValue; type "text_editor_20250728"constant

              • TEXT_EDITOR_20250728("text_editor_20250728")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<List<InputExample>> inputExamples

            • Optional<Long> maxCharacters

              Maximum number of characters to display when viewing a file. If not specified, defaults to displaying the full file.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class WebSearchTool20250305:

            • JsonValue; name "web_search"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • WEB_SEARCH("web_search")
            • JsonValue; type "web_search_20250305"constant

              • WEB_SEARCH_20250305("web_search_20250305")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<List<String>> allowedDomains

              If provided, only these domains will be included in results. Cannot be used alongside blocked_domains.

            • Optional<List<String>> blockedDomains

              If provided, these domains will never appear in results. Cannot be used alongside allowed_domains.

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Long> maxUses

              Maximum number of times the tool can be used in the API request.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

            • Optional<UserLocation> userLocation

              Parameters for the user’s location. Used to provide more relevant search results.

              • JsonValue; type "approximate"constant

                • APPROXIMATE("approximate")
              • Optional<String> city

                The city of the user.

              • Optional<String> country

                The two letter ISO country code of the user.

              • Optional<String> region

                The region of the user.

              • Optional<String> timezone

                The IANA timezone of the user.

          • class WebFetchTool20250910:

            • JsonValue; name "web_fetch"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • WEB_FETCH("web_fetch")
            • JsonValue; type "web_fetch_20250910"constant

              • WEB_FETCH_20250910("web_fetch_20250910")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<List<String>> allowedDomains

              List of domains to allow fetching from

            • Optional<List<String>> blockedDomains

              List of domains to block fetching from

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<CitationsConfigParam> citations

              Citations configuration for fetched documents. Citations are disabled by default.

              • Optional<Boolean> enabled
            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Long> maxContentTokens

              Maximum number of tokens used by including web page text content in the context. The limit is approximate and does not apply to binary content such as PDFs.

            • Optional<Long> maxUses

              Maximum number of times the tool can be used in the API request.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class WebSearchTool20260209:

            • JsonValue; name "web_search"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • WEB_SEARCH("web_search")
            • JsonValue; type "web_search_20260209"constant

              • WEB_SEARCH_20260209("web_search_20260209")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<List<String>> allowedDomains

              If provided, only these domains will be included in results. Cannot be used alongside blocked_domains.

            • Optional<List<String>> blockedDomains

              If provided, these domains will never appear in results. Cannot be used alongside allowed_domains.

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Long> maxUses

              Maximum number of times the tool can be used in the API request.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

            • Optional<UserLocation> userLocation

              Parameters for the user’s location. Used to provide more relevant search results.

              • JsonValue; type "approximate"constant

                • APPROXIMATE("approximate")
              • Optional<String> city

                The city of the user.

              • Optional<String> country

                The two letter ISO country code of the user.

              • Optional<String> region

                The region of the user.

              • Optional<String> timezone

                The IANA timezone of the user.

          • class WebFetchTool20260209:

            • JsonValue; name "web_fetch"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • WEB_FETCH("web_fetch")
            • JsonValue; type "web_fetch_20260209"constant

              • WEB_FETCH_20260209("web_fetch_20260209")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<List<String>> allowedDomains

              List of domains to allow fetching from

            • Optional<List<String>> blockedDomains

              List of domains to block fetching from

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<CitationsConfigParam> citations

              Citations configuration for fetched documents. Citations are disabled by default.

              • Optional<Boolean> enabled
            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Long> maxContentTokens

              Maximum number of tokens used by including web page text content in the context. The limit is approximate and does not apply to binary content such as PDFs.

            • Optional<Long> maxUses

              Maximum number of times the tool can be used in the API request.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class WebFetchTool20260309:

            Web fetch tool with use_cache parameter for bypassing cached content.

            • JsonValue; name "web_fetch"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • WEB_FETCH("web_fetch")
            • JsonValue; type "web_fetch_20260309"constant

              • WEB_FETCH_20260309("web_fetch_20260309")
            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<List<String>> allowedDomains

              List of domains to allow fetching from

            • Optional<List<String>> blockedDomains

              List of domains to block fetching from

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<CitationsConfigParam> citations

              Citations configuration for fetched documents. Citations are disabled by default.

              • Optional<Boolean> enabled
            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Long> maxContentTokens

              Maximum number of tokens used by including web page text content in the context. The limit is approximate and does not apply to binary content such as PDFs.

            • Optional<Long> maxUses

              Maximum number of times the tool can be used in the API request.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

            • Optional<Boolean> useCache

              Whether to use cached content. Set to false to bypass the cache and fetch fresh content. Only set to false when the user explicitly requests fresh content or when fetching rapidly-changing sources.

          • class ToolSearchToolBm25_20251119:

            • JsonValue; name "tool_search_tool_bm25"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")
            • Type type

              • TOOL_SEARCH_TOOL_BM25_20251119("tool_search_tool_bm25_20251119")

              • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

          • class ToolSearchToolRegex20251119:

            • JsonValue; name "tool_search_tool_regex"constant

              Name of the tool.

              This is how the tool will be called by the model and in tool_use blocks.

              • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")
            • Type type

              • TOOL_SEARCH_TOOL_REGEX_20251119("tool_search_tool_regex_20251119")

              • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

            • Optional<List<AllowedCaller>> allowedCallers

              • DIRECT("direct")

              • CODE_EXECUTION_20250825("code_execution_20250825")

              • CODE_EXECUTION_20260120("code_execution_20260120")

            • Optional<CacheControlEphemeral> cacheControl

              Create a cache control breakpoint at this content block.

              • JsonValue; type "ephemeral"constant

                • EPHEMERAL("ephemeral")
              • Optional<Ttl> ttl

                The time-to-live for the cache control breakpoint.

                This may be one the following values:

                • 5m: 5 minutes
                • 1h: 1 hour

                Defaults to 5m.

                • TTL_5M("5m")

                • TTL_1H("1h")

            • Optional<Boolean> deferLoading

              If true, tool will not be included in initial system prompt. Only loaded when returned via tool_reference from tool search.

            • Optional<Boolean> strict

              When true, guarantees schema validation on tool names and inputs

        • Optional<Long> topK

          Only sample from the top K options for each subsequent token.

          Used to remove “long tail” low probability responses. Learn more technical details here.

          Recommended for advanced use cases only.

        • Optional<Double> topP

          Use nucleus sampling.

          In nucleus sampling, we compute the cumulative distribution over all the options for each subsequent token in decreasing probability order and cut it off once it reaches a particular probability specified by top_p.

          Recommended for advanced use cases only.

Returns

  • class MessageBatch:

    • String id

      Unique object identifier.

      The format and length of IDs may change over time.

    • Optional<LocalDateTime> archivedAt

      RFC 3339 datetime string representing the time at which the Message Batch was archived and its results became unavailable.

    • Optional<LocalDateTime> cancelInitiatedAt

      RFC 3339 datetime string representing the time at which cancellation was initiated for the Message Batch. Specified only if cancellation was initiated.

    • LocalDateTime createdAt

      RFC 3339 datetime string representing the time at which the Message Batch was created.

    • Optional<LocalDateTime> endedAt

      RFC 3339 datetime string representing the time at which processing for the Message Batch ended. Specified only once processing ends.

      Processing ends when every request in a Message Batch has either succeeded, errored, canceled, or expired.

    • LocalDateTime expiresAt

      RFC 3339 datetime string representing the time at which the Message Batch will expire and end processing, which is 24 hours after creation.

    • ProcessingStatus processingStatus

      Processing status of the Message Batch.

      • IN_PROGRESS("in_progress")

      • CANCELING("canceling")

      • ENDED("ended")

    • MessageBatchRequestCounts requestCounts

      Tallies requests within the Message Batch, categorized by their status.

      Requests start as processing and move to one of the other statuses only once processing of the entire batch ends. The sum of all values always matches the total number of requests in the batch.

      • long canceled

        Number of requests in the Message Batch that have been canceled.

        This is zero until processing of the entire Message Batch has ended.

      • long errored

        Number of requests in the Message Batch that encountered an error.

        This is zero until processing of the entire Message Batch has ended.

      • long expired

        Number of requests in the Message Batch that have expired.

        This is zero until processing of the entire Message Batch has ended.

      • long processing

        Number of requests in the Message Batch that are processing.

      • long succeeded

        Number of requests in the Message Batch that have completed successfully.

        This is zero until processing of the entire Message Batch has ended.

    • Optional<String> resultsUrl

      URL to a .jsonl file containing the results of the Message Batch requests. Specified only once processing ends.

      Results in the file are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

    • JsonValue; type "message_batch"constant

      Object type.

      For Message Batches, this is always "message_batch".

      • MESSAGE_BATCH("message_batch")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.Model;
import com.anthropic.models.messages.batches.BatchCreateParams;
import com.anthropic.models.messages.batches.MessageBatch;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        BatchCreateParams params = BatchCreateParams.builder()
            .addRequest(BatchCreateParams.Request.builder()
                .customId("my-custom-id-1")
                .params(BatchCreateParams.Request.Params.builder()
                    .maxTokens(1024L)
                    .addUserMessage("Hello, world")
                    .model(Model.CLAUDE_OPUS_4_6)
                    .build())
                .build())
            .build();
        MessageBatch messageBatch = client.messages().batches().create(params);
    }
}

Retrieve

MessageBatch messages().batches().retrieve(BatchRetrieveParamsparams = BatchRetrieveParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /v1/messages/batches/{message_batch_id}

This endpoint is idempotent and can be used to poll for Message Batch completion. To access the results of a Message Batch, make a request to the results_url field in the response.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchRetrieveParams params

    • Optional<String> messageBatchId

      ID of the Message Batch.

Returns

  • class MessageBatch:

    • String id

      Unique object identifier.

      The format and length of IDs may change over time.

    • Optional<LocalDateTime> archivedAt

      RFC 3339 datetime string representing the time at which the Message Batch was archived and its results became unavailable.

    • Optional<LocalDateTime> cancelInitiatedAt

      RFC 3339 datetime string representing the time at which cancellation was initiated for the Message Batch. Specified only if cancellation was initiated.

    • LocalDateTime createdAt

      RFC 3339 datetime string representing the time at which the Message Batch was created.

    • Optional<LocalDateTime> endedAt

      RFC 3339 datetime string representing the time at which processing for the Message Batch ended. Specified only once processing ends.

      Processing ends when every request in a Message Batch has either succeeded, errored, canceled, or expired.

    • LocalDateTime expiresAt

      RFC 3339 datetime string representing the time at which the Message Batch will expire and end processing, which is 24 hours after creation.

    • ProcessingStatus processingStatus

      Processing status of the Message Batch.

      • IN_PROGRESS("in_progress")

      • CANCELING("canceling")

      • ENDED("ended")

    • MessageBatchRequestCounts requestCounts

      Tallies requests within the Message Batch, categorized by their status.

      Requests start as processing and move to one of the other statuses only once processing of the entire batch ends. The sum of all values always matches the total number of requests in the batch.

      • long canceled

        Number of requests in the Message Batch that have been canceled.

        This is zero until processing of the entire Message Batch has ended.

      • long errored

        Number of requests in the Message Batch that encountered an error.

        This is zero until processing of the entire Message Batch has ended.

      • long expired

        Number of requests in the Message Batch that have expired.

        This is zero until processing of the entire Message Batch has ended.

      • long processing

        Number of requests in the Message Batch that are processing.

      • long succeeded

        Number of requests in the Message Batch that have completed successfully.

        This is zero until processing of the entire Message Batch has ended.

    • Optional<String> resultsUrl

      URL to a .jsonl file containing the results of the Message Batch requests. Specified only once processing ends.

      Results in the file are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

    • JsonValue; type "message_batch"constant

      Object type.

      For Message Batches, this is always "message_batch".

      • MESSAGE_BATCH("message_batch")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.batches.BatchRetrieveParams;
import com.anthropic.models.messages.batches.MessageBatch;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        MessageBatch messageBatch = client.messages().batches().retrieve("message_batch_id");
    }
}

List

BatchListPage messages().batches().list(BatchListParamsparams = BatchListParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /v1/messages/batches

List all Message Batches within a Workspace. Most recently created batches are returned first.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchListParams params

    • Optional<String> afterId

      ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately after this object.

    • Optional<String> beforeId

      ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately before this object.

    • Optional<Long> limit

      Number of items to return per page.

      Defaults to 20. Ranges from 1 to 1000.

Returns

  • class MessageBatch:

    • String id

      Unique object identifier.

      The format and length of IDs may change over time.

    • Optional<LocalDateTime> archivedAt

      RFC 3339 datetime string representing the time at which the Message Batch was archived and its results became unavailable.

    • Optional<LocalDateTime> cancelInitiatedAt

      RFC 3339 datetime string representing the time at which cancellation was initiated for the Message Batch. Specified only if cancellation was initiated.

    • LocalDateTime createdAt

      RFC 3339 datetime string representing the time at which the Message Batch was created.

    • Optional<LocalDateTime> endedAt

      RFC 3339 datetime string representing the time at which processing for the Message Batch ended. Specified only once processing ends.

      Processing ends when every request in a Message Batch has either succeeded, errored, canceled, or expired.

    • LocalDateTime expiresAt

      RFC 3339 datetime string representing the time at which the Message Batch will expire and end processing, which is 24 hours after creation.

    • ProcessingStatus processingStatus

      Processing status of the Message Batch.

      • IN_PROGRESS("in_progress")

      • CANCELING("canceling")

      • ENDED("ended")

    • MessageBatchRequestCounts requestCounts

      Tallies requests within the Message Batch, categorized by their status.

      Requests start as processing and move to one of the other statuses only once processing of the entire batch ends. The sum of all values always matches the total number of requests in the batch.

      • long canceled

        Number of requests in the Message Batch that have been canceled.

        This is zero until processing of the entire Message Batch has ended.

      • long errored

        Number of requests in the Message Batch that encountered an error.

        This is zero until processing of the entire Message Batch has ended.

      • long expired

        Number of requests in the Message Batch that have expired.

        This is zero until processing of the entire Message Batch has ended.

      • long processing

        Number of requests in the Message Batch that are processing.

      • long succeeded

        Number of requests in the Message Batch that have completed successfully.

        This is zero until processing of the entire Message Batch has ended.

    • Optional<String> resultsUrl

      URL to a .jsonl file containing the results of the Message Batch requests. Specified only once processing ends.

      Results in the file are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

    • JsonValue; type "message_batch"constant

      Object type.

      For Message Batches, this is always "message_batch".

      • MESSAGE_BATCH("message_batch")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.batches.BatchListPage;
import com.anthropic.models.messages.batches.BatchListParams;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        BatchListPage page = client.messages().batches().list();
    }
}

Cancel

MessageBatch messages().batches().cancel(BatchCancelParamsparams = BatchCancelParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

post /v1/messages/batches/{message_batch_id}/cancel

Batches may be canceled any time before processing ends. Once cancellation is initiated, the batch enters a canceling state, at which time the system may complete any in-progress, non-interruptible requests before finalizing cancellation.

The number of canceled requests is specified in request_counts. To determine which requests were canceled, check the individual results within the batch. Note that cancellation may not result in any canceled requests if they were non-interruptible.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchCancelParams params

    • Optional<String> messageBatchId

      ID of the Message Batch.

Returns

  • class MessageBatch:

    • String id

      Unique object identifier.

      The format and length of IDs may change over time.

    • Optional<LocalDateTime> archivedAt

      RFC 3339 datetime string representing the time at which the Message Batch was archived and its results became unavailable.

    • Optional<LocalDateTime> cancelInitiatedAt

      RFC 3339 datetime string representing the time at which cancellation was initiated for the Message Batch. Specified only if cancellation was initiated.

    • LocalDateTime createdAt

      RFC 3339 datetime string representing the time at which the Message Batch was created.

    • Optional<LocalDateTime> endedAt

      RFC 3339 datetime string representing the time at which processing for the Message Batch ended. Specified only once processing ends.

      Processing ends when every request in a Message Batch has either succeeded, errored, canceled, or expired.

    • LocalDateTime expiresAt

      RFC 3339 datetime string representing the time at which the Message Batch will expire and end processing, which is 24 hours after creation.

    • ProcessingStatus processingStatus

      Processing status of the Message Batch.

      • IN_PROGRESS("in_progress")

      • CANCELING("canceling")

      • ENDED("ended")

    • MessageBatchRequestCounts requestCounts

      Tallies requests within the Message Batch, categorized by their status.

      Requests start as processing and move to one of the other statuses only once processing of the entire batch ends. The sum of all values always matches the total number of requests in the batch.

      • long canceled

        Number of requests in the Message Batch that have been canceled.

        This is zero until processing of the entire Message Batch has ended.

      • long errored

        Number of requests in the Message Batch that encountered an error.

        This is zero until processing of the entire Message Batch has ended.

      • long expired

        Number of requests in the Message Batch that have expired.

        This is zero until processing of the entire Message Batch has ended.

      • long processing

        Number of requests in the Message Batch that are processing.

      • long succeeded

        Number of requests in the Message Batch that have completed successfully.

        This is zero until processing of the entire Message Batch has ended.

    • Optional<String> resultsUrl

      URL to a .jsonl file containing the results of the Message Batch requests. Specified only once processing ends.

      Results in the file are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

    • JsonValue; type "message_batch"constant

      Object type.

      For Message Batches, this is always "message_batch".

      • MESSAGE_BATCH("message_batch")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.batches.BatchCancelParams;
import com.anthropic.models.messages.batches.MessageBatch;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        MessageBatch messageBatch = client.messages().batches().cancel("message_batch_id");
    }
}

Delete

DeletedMessageBatch messages().batches().delete(BatchDeleteParamsparams = BatchDeleteParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

delete /v1/messages/batches/{message_batch_id}

Delete a Message Batch.

Message Batches can only be deleted once they’ve finished processing. If you’d like to delete an in-progress batch, you must first cancel it.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchDeleteParams params

    • Optional<String> messageBatchId

      ID of the Message Batch.

Returns

  • class DeletedMessageBatch:

    • String id

      ID of the Message Batch.

    • JsonValue; type "message_batch_deleted"constant

      Deleted object type.

      For Message Batches, this is always "message_batch_deleted".

      • MESSAGE_BATCH_DELETED("message_batch_deleted")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.batches.BatchDeleteParams;
import com.anthropic.models.messages.batches.DeletedMessageBatch;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        DeletedMessageBatch deletedMessageBatch = client.messages().batches().delete("message_batch_id");
    }
}

Results

MessageBatchIndividualResponse messages().batches().resultsStreaming(BatchResultsParamsparams = BatchResultsParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /v1/messages/batches/{message_batch_id}/results

Streams the results of a Message Batch as a .jsonl file.

Each line in the file is a JSON object containing the result of a single request in the Message Batch. Results are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

Learn more about the Message Batches API in our user guide

Parameters

  • BatchResultsParams params

    • Optional<String> messageBatchId

      ID of the Message Batch.

Returns

  • class MessageBatchIndividualResponse:

    This is a single line in the response .jsonl file and does not represent the response as a whole.

    • String customId

      Developer-provided ID created for each request in a Message Batch. Useful for matching results to requests, as results may be given out of request order.

      Must be unique for each request within the Message Batch.

    • MessageBatchResult result

      Processing result for this request.

      Contains a Message output if processing was successful, an error response if processing failed, or the reason why processing was not attempted, such as cancellation or expiration.

      • class MessageBatchSucceededResult:

        • Message message

          • String id

            Unique object identifier.

            The format and length of IDs may change over time.

          • Optional<Container> container

            Information about the container used in the request (for the code execution tool)

            • String id

              Identifier for the container used in this request

            • LocalDateTime expiresAt

              The time at which the container will expire.

          • List<ContentBlock> content

            Content generated by the model.

            This is an array of content blocks, each of which has a type that determines its shape.

            Example:

            [{"type": "text", "text": "Hi, I'm Claude."}]

            If the request input messages ended with an assistant turn, then the response content will continue directly from that last turn. You can use this to constrain the model’s output.

            For example, if the input messages were:

            [
              {"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
              {"role": "assistant", "content": "The best answer is ("}
            ]

            Then the response content might be:

            [{"type": "text", "text": "B)"}]
            • class TextBlock:

              • Optional<List<TextCitation>> citations

                Citations supporting the text block.

                The type of citation returned will depend on the type of document being cited. Citing a PDF results in page_location, plain text results in char_location, and content document results in content_block_location.

                • class CitationCharLocation:

                  • String citedText

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endCharIndex

                  • Optional<String> fileId

                  • long startCharIndex

                  • JsonValue; type "char_location"constant

                    • CHAR_LOCATION("char_location")
                • class CitationPageLocation:

                  • String citedText

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endPageNumber

                  • Optional<String> fileId

                  • long startPageNumber

                  • JsonValue; type "page_location"constant

                    • PAGE_LOCATION("page_location")
                • class CitationContentBlockLocation:

                  • String citedText

                    The full text of the cited block range, concatenated.

                    Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endBlockIndex

                    Exclusive 0-based end index of the cited block range in the source’s content array.

                    Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                  • Optional<String> fileId

                  • long startBlockIndex

                    0-based index of the first cited block in the source’s content array.

                  • JsonValue; type "content_block_location"constant

                    • CONTENT_BLOCK_LOCATION("content_block_location")
                • class CitationsWebSearchResultLocation:

                  • String citedText

                  • String encryptedIndex

                  • Optional<String> title

                  • JsonValue; type "web_search_result_location"constant

                    • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                  • String url

                • class CitationsSearchResultLocation:

                  • String citedText

                    The full text of the cited block range, concatenated.

                    Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                  • long endBlockIndex

                    Exclusive 0-based end index of the cited block range in the source’s content array.

                    Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                  • long searchResultIndex

                    0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                    Counted separately from document_index; server-side web search results are not included in this count.

                  • String source

                  • long startBlockIndex

                    0-based index of the first cited block in the source’s content array.

                  • Optional<String> title

                  • JsonValue; type "search_result_location"constant

                    • SEARCH_RESULT_LOCATION("search_result_location")
              • String text

              • JsonValue; type "text"constant

                • TEXT("text")
            • class ThinkingBlock:

              • String signature

              • String thinking

              • JsonValue; type "thinking"constant

                • THINKING("thinking")
            • class RedactedThinkingBlock:

              • String data

              • JsonValue; type "redacted_thinking"constant

                • REDACTED_THINKING("redacted_thinking")
            • class ToolUseBlock:

              • String id

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Input input

              • String name

              • JsonValue; type "tool_use"constant

                • TOOL_USE("tool_use")
            • class ServerToolUseBlock:

              • String id

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Input input

              • Name name

                • WEB_SEARCH("web_search")

                • WEB_FETCH("web_fetch")

                • CODE_EXECUTION("code_execution")

                • BASH_CODE_EXECUTION("bash_code_execution")

                • TEXT_EDITOR_CODE_EXECUTION("text_editor_code_execution")

                • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

                • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

              • JsonValue; type "server_tool_use"constant

                • SERVER_TOOL_USE("server_tool_use")
            • class WebSearchToolResultBlock:

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • WebSearchToolResultBlockContent content

                • class WebSearchToolResultError:

                  • WebSearchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • MAX_USES_EXCEEDED("max_uses_exceeded")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • QUERY_TOO_LONG("query_too_long")

                    • REQUEST_TOO_LARGE("request_too_large")

                  • JsonValue; type "web_search_tool_result_error"constant

                    • WEB_SEARCH_TOOL_RESULT_ERROR("web_search_tool_result_error")
                • List<WebSearchResultBlock>

                  • String encryptedContent

                  • Optional<String> pageAge

                  • String title

                  • JsonValue; type "web_search_result"constant

                    • WEB_SEARCH_RESULT("web_search_result")
                  • String url

              • String toolUseId

              • JsonValue; type "web_search_tool_result"constant

                • WEB_SEARCH_TOOL_RESULT("web_search_tool_result")
            • class WebFetchToolResultBlock:

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Content content

                • class WebFetchToolResultErrorBlock:

                  • WebFetchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • URL_TOO_LONG("url_too_long")

                    • URL_NOT_ALLOWED("url_not_allowed")

                    • URL_NOT_ACCESSIBLE("url_not_accessible")

                    • UNSUPPORTED_CONTENT_TYPE("unsupported_content_type")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • MAX_USES_EXCEEDED("max_uses_exceeded")

                    • UNAVAILABLE("unavailable")

                  • JsonValue; type "web_fetch_tool_result_error"constant

                    • WEB_FETCH_TOOL_RESULT_ERROR("web_fetch_tool_result_error")
                • class WebFetchBlock:

                  • DocumentBlock content

                    • Optional<CitationsConfig> citations

                      Citation configuration for the document

                      • boolean enabled
                    • Source source

                      • class Base64PdfSource:

                        • String data

                        • JsonValue; mediaType "application/pdf"constant

                          • APPLICATION_PDF("application/pdf")
                        • JsonValue; type "base64"constant

                          • BASE64("base64")
                      • class PlainTextSource:

                        • String data

                        • JsonValue; mediaType "text/plain"constant

                          • TEXT_PLAIN("text/plain")
                        • JsonValue; type "text"constant

                          • TEXT("text")
                    • Optional<String> title

                      The title of the document

                    • JsonValue; type "document"constant

                      • DOCUMENT("document")
                  • Optional<String> retrievedAt

                    ISO 8601 timestamp when the content was retrieved

                  • JsonValue; type "web_fetch_result"constant

                    • WEB_FETCH_RESULT("web_fetch_result")
                  • String url

                    Fetched content URL

              • String toolUseId

              • JsonValue; type "web_fetch_tool_result"constant

                • WEB_FETCH_TOOL_RESULT("web_fetch_tool_result")
            • class CodeExecutionToolResultBlock:

              • CodeExecutionToolResultBlockContent content

                Code execution result with encrypted stdout for PFC + web_search results.

                • class CodeExecutionToolResultError:

                  • CodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • JsonValue; type "code_execution_tool_result_error"constant

                    • CODE_EXECUTION_TOOL_RESULT_ERROR("code_execution_tool_result_error")
                • class CodeExecutionResultBlock:

                  • List<CodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "code_execution_output"constant

                      • CODE_EXECUTION_OUTPUT("code_execution_output")
                  • long returnCode

                  • String stderr

                  • String stdout

                  • JsonValue; type "code_execution_result"constant

                    • CODE_EXECUTION_RESULT("code_execution_result")
                • class EncryptedCodeExecutionResultBlock:

                  Code execution result with encrypted stdout for PFC + web_search results.

                  • List<CodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "code_execution_output"constant

                      • CODE_EXECUTION_OUTPUT("code_execution_output")
                  • String encryptedStdout

                  • long returnCode

                  • String stderr

                  • JsonValue; type "encrypted_code_execution_result"constant

                    • ENCRYPTED_CODE_EXECUTION_RESULT("encrypted_code_execution_result")
              • String toolUseId

              • JsonValue; type "code_execution_tool_result"constant

                • CODE_EXECUTION_TOOL_RESULT("code_execution_tool_result")
            • class BashCodeExecutionToolResultBlock:

              • Content content

                • class BashCodeExecutionToolResultError:

                  • BashCodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • OUTPUT_FILE_TOO_LARGE("output_file_too_large")

                  • JsonValue; type "bash_code_execution_tool_result_error"constant

                    • BASH_CODE_EXECUTION_TOOL_RESULT_ERROR("bash_code_execution_tool_result_error")
                • class BashCodeExecutionResultBlock:

                  • List<BashCodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "bash_code_execution_output"constant

                      • BASH_CODE_EXECUTION_OUTPUT("bash_code_execution_output")
                  • long returnCode

                  • String stderr

                  • String stdout

                  • JsonValue; type "bash_code_execution_result"constant

                    • BASH_CODE_EXECUTION_RESULT("bash_code_execution_result")
              • String toolUseId

              • JsonValue; type "bash_code_execution_tool_result"constant

                • BASH_CODE_EXECUTION_TOOL_RESULT("bash_code_execution_tool_result")
            • class TextEditorCodeExecutionToolResultBlock:

              • Content content

                • class TextEditorCodeExecutionToolResultError:

                  • TextEditorCodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • FILE_NOT_FOUND("file_not_found")

                  • Optional<String> errorMessage

                  • JsonValue; type "text_editor_code_execution_tool_result_error"constant

                    • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT_ERROR("text_editor_code_execution_tool_result_error")
                • class TextEditorCodeExecutionViewResultBlock:

                  • String content

                  • FileType fileType

                    • TEXT("text")

                    • IMAGE("image")

                    • PDF("pdf")

                  • Optional<Long> numLines

                  • Optional<Long> startLine

                  • Optional<Long> totalLines

                  • JsonValue; type "text_editor_code_execution_view_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_VIEW_RESULT("text_editor_code_execution_view_result")
                • class TextEditorCodeExecutionCreateResultBlock:

                  • boolean isFileUpdate

                  • JsonValue; type "text_editor_code_execution_create_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_CREATE_RESULT("text_editor_code_execution_create_result")
                • class TextEditorCodeExecutionStrReplaceResultBlock:

                  • Optional<List<String>> lines

                  • Optional<Long> newLines

                  • Optional<Long> newStart

                  • Optional<Long> oldLines

                  • Optional<Long> oldStart

                  • JsonValue; type "text_editor_code_execution_str_replace_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_STR_REPLACE_RESULT("text_editor_code_execution_str_replace_result")
              • String toolUseId

              • JsonValue; type "text_editor_code_execution_tool_result"constant

                • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT("text_editor_code_execution_tool_result")
            • class ToolSearchToolResultBlock:

              • Content content

                • class ToolSearchToolResultError:

                  • ToolSearchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • Optional<String> errorMessage

                  • JsonValue; type "tool_search_tool_result_error"constant

                    • TOOL_SEARCH_TOOL_RESULT_ERROR("tool_search_tool_result_error")
                • class ToolSearchToolSearchResultBlock:

                  • List<ToolReferenceBlock> toolReferences

                    • String toolName

                    • JsonValue; type "tool_reference"constant

                      • TOOL_REFERENCE("tool_reference")
                  • JsonValue; type "tool_search_tool_search_result"constant

                    • TOOL_SEARCH_TOOL_SEARCH_RESULT("tool_search_tool_search_result")
              • String toolUseId

              • JsonValue; type "tool_search_tool_result"constant

                • TOOL_SEARCH_TOOL_RESULT("tool_search_tool_result")
            • class ContainerUploadBlock:

              Response model for a file uploaded to the container.

              • String fileId

              • JsonValue; type "container_upload"constant

                • CONTAINER_UPLOAD("container_upload")
          • Model model

            The model that will complete your prompt.

            See models for additional details and options.

            • CLAUDE_OPUS_4_7("claude-opus-4-7")

              Frontier intelligence for long-running agents and coding

            • CLAUDE_MYTHOS_PREVIEW("claude-mythos-preview")

              New class of intelligence, strongest in coding and cybersecurity

            • CLAUDE_OPUS_4_6("claude-opus-4-6")

              Frontier intelligence for long-running agents and coding

            • CLAUDE_SONNET_4_6("claude-sonnet-4-6")

              Best combination of speed and intelligence

            • CLAUDE_HAIKU_4_5("claude-haiku-4-5")

              Fastest model with near-frontier intelligence

            • CLAUDE_HAIKU_4_5_20251001("claude-haiku-4-5-20251001")

              Fastest model with near-frontier intelligence

            • CLAUDE_OPUS_4_5("claude-opus-4-5")

              Premium model combining maximum intelligence with practical performance

            • CLAUDE_OPUS_4_5_20251101("claude-opus-4-5-20251101")

              Premium model combining maximum intelligence with practical performance

            • CLAUDE_SONNET_4_5("claude-sonnet-4-5")

              High-performance model for agents and coding

            • CLAUDE_SONNET_4_5_20250929("claude-sonnet-4-5-20250929")

              High-performance model for agents and coding

            • CLAUDE_OPUS_4_1("claude-opus-4-1")

              Exceptional model for specialized complex tasks

            • CLAUDE_OPUS_4_1_20250805("claude-opus-4-1-20250805")

              Exceptional model for specialized complex tasks

            • CLAUDE_OPUS_4_0("claude-opus-4-0")

              Powerful model for complex tasks

            • CLAUDE_OPUS_4_20250514("claude-opus-4-20250514")

              Powerful model for complex tasks

            • CLAUDE_SONNET_4_0("claude-sonnet-4-0")

              High-performance model with extended thinking

            • CLAUDE_SONNET_4_20250514("claude-sonnet-4-20250514")

              High-performance model with extended thinking

            • CLAUDE_3_HAIKU_20240307("claude-3-haiku-20240307")

              Fast and cost-effective model

          • JsonValue; role "assistant"constant

            Conversational role of the generated message.

            This will always be "assistant".

            • ASSISTANT("assistant")
          • Optional<RefusalStopDetails> stopDetails

            Structured information about a refusal.

            • Optional<Category> category

              The policy category that triggered the refusal.

              null when the refusal doesn’t map to a named category.

              • CYBER("cyber")

              • BIO("bio")

            • Optional<String> explanation

              Human-readable explanation of the refusal.

              This text is not guaranteed to be stable. null when no explanation is available for the category.

            • JsonValue; type "refusal"constant

              • REFUSAL("refusal")
          • Optional<StopReason> stopReason

            The reason that we stopped.

            This may be one the following values:

            • "end_turn": the model reached a natural stopping point
            • "max_tokens": we exceeded the requested max_tokens or the model’s maximum
            • "stop_sequence": one of your provided custom stop_sequences was generated
            • "tool_use": the model invoked one or more tools
            • "pause_turn": we paused a long-running turn. You may provide the response back as-is in a subsequent request to let the model continue.
            • "refusal": when streaming classifiers intervene to handle potential policy violations

            In non-streaming mode this value is always non-null. In streaming mode, it is null in the message_start event and non-null otherwise.

            • END_TURN("end_turn")

            • MAX_TOKENS("max_tokens")

            • STOP_SEQUENCE("stop_sequence")

            • TOOL_USE("tool_use")

            • PAUSE_TURN("pause_turn")

            • REFUSAL("refusal")

          • Optional<String> stopSequence

            Which custom stop sequence was generated, if any.

            This value will be a non-null string if one of your custom stop sequences was generated.

          • JsonValue; type "message"constant

            Object type.

            For Messages, this is always "message".

            • MESSAGE("message")
          • Usage usage

            Billing and rate-limit usage.

            Anthropic’s API bills and rate-limits by token counts, as tokens represent the underlying cost to our systems.

            Under the hood, the API transforms requests into a format suitable for the model. The model’s output then goes through a parsing stage before becoming an API response. As a result, the token counts in usage will not match one-to-one with the exact visible content of an API request or response.

            For example, output_tokens will be non-zero, even for an empty string response from Claude.

            Total input tokens in a request is the summation of input_tokens, cache_creation_input_tokens, and cache_read_input_tokens.

            • Optional<CacheCreation> cacheCreation

              Breakdown of cached tokens by TTL

              • long ephemeral1hInputTokens

                The number of input tokens used to create the 1 hour cache entry.

              • long ephemeral5mInputTokens

                The number of input tokens used to create the 5 minute cache entry.

            • Optional<Long> cacheCreationInputTokens

              The number of input tokens used to create the cache entry.

            • Optional<Long> cacheReadInputTokens

              The number of input tokens read from the cache.

            • Optional<String> inferenceGeo

              The geographic region where inference was performed for this request.

            • long inputTokens

              The number of input tokens which were used.

            • long outputTokens

              The number of output tokens which were used.

            • Optional<ServerToolUsage> serverToolUse

              The number of server tool requests.

              • long webFetchRequests

                The number of web fetch tool requests.

              • long webSearchRequests

                The number of web search tool requests.

            • Optional<ServiceTier> serviceTier

              If the request used the priority, standard, or batch tier.

              • STANDARD("standard")

              • PRIORITY("priority")

              • BATCH("batch")

        • JsonValue; type "succeeded"constant

          • SUCCEEDED("succeeded")
      • class MessageBatchErroredResult:

        • ErrorResponse error

          • ErrorObject error

            • class InvalidRequestError:

              • String message

              • JsonValue; type "invalid_request_error"constant

                • INVALID_REQUEST_ERROR("invalid_request_error")
            • class AuthenticationError:

              • String message

              • JsonValue; type "authentication_error"constant

                • AUTHENTICATION_ERROR("authentication_error")
            • class BillingError:

              • String message

              • JsonValue; type "billing_error"constant

                • BILLING_ERROR("billing_error")
            • class PermissionError:

              • String message

              • JsonValue; type "permission_error"constant

                • PERMISSION_ERROR("permission_error")
            • class NotFoundError:

              • String message

              • JsonValue; type "not_found_error"constant

                • NOT_FOUND_ERROR("not_found_error")
            • class RateLimitError:

              • String message

              • JsonValue; type "rate_limit_error"constant

                • RATE_LIMIT_ERROR("rate_limit_error")
            • class GatewayTimeoutError:

              • String message

              • JsonValue; type "timeout_error"constant

                • TIMEOUT_ERROR("timeout_error")
            • class ApiErrorObject:

              • String message

              • JsonValue; type "api_error"constant

                • API_ERROR("api_error")
            • class OverloadedError:

              • String message

              • JsonValue; type "overloaded_error"constant

                • OVERLOADED_ERROR("overloaded_error")
          • Optional<String> requestId

          • JsonValue; type "error"constant

            • ERROR("error")
        • JsonValue; type "errored"constant

          • ERRORED("errored")
      • class MessageBatchCanceledResult:

        • JsonValue; type "canceled"constant

          • CANCELED("canceled")
      • class MessageBatchExpiredResult:

        • JsonValue; type "expired"constant

          • EXPIRED("expired")

Example

package com.anthropic.example;
 
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.core.http.StreamResponse;
import com.anthropic.models.messages.batches.BatchResultsParams;
import com.anthropic.models.messages.batches.MessageBatchIndividualResponse;
 
public final class Main {
    private Main() {}
 
    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();
 
        StreamResponse<MessageBatchIndividualResponse> messageBatchIndividualResponse = client.messages().batches().resultsStreaming("message_batch_id");
    }
}

Domain Types

Deleted Message Batch

  • class DeletedMessageBatch:

    • String id

      ID of the Message Batch.

    • JsonValue; type "message_batch_deleted"constant

      Deleted object type.

      For Message Batches, this is always "message_batch_deleted".

      • MESSAGE_BATCH_DELETED("message_batch_deleted")

Message Batch

  • class MessageBatch:

    • String id

      Unique object identifier.

      The format and length of IDs may change over time.

    • Optional<LocalDateTime> archivedAt

      RFC 3339 datetime string representing the time at which the Message Batch was archived and its results became unavailable.

    • Optional<LocalDateTime> cancelInitiatedAt

      RFC 3339 datetime string representing the time at which cancellation was initiated for the Message Batch. Specified only if cancellation was initiated.

    • LocalDateTime createdAt

      RFC 3339 datetime string representing the time at which the Message Batch was created.

    • Optional<LocalDateTime> endedAt

      RFC 3339 datetime string representing the time at which processing for the Message Batch ended. Specified only once processing ends.

      Processing ends when every request in a Message Batch has either succeeded, errored, canceled, or expired.

    • LocalDateTime expiresAt

      RFC 3339 datetime string representing the time at which the Message Batch will expire and end processing, which is 24 hours after creation.

    • ProcessingStatus processingStatus

      Processing status of the Message Batch.

      • IN_PROGRESS("in_progress")

      • CANCELING("canceling")

      • ENDED("ended")

    • MessageBatchRequestCounts requestCounts

      Tallies requests within the Message Batch, categorized by their status.

      Requests start as processing and move to one of the other statuses only once processing of the entire batch ends. The sum of all values always matches the total number of requests in the batch.

      • long canceled

        Number of requests in the Message Batch that have been canceled.

        This is zero until processing of the entire Message Batch has ended.

      • long errored

        Number of requests in the Message Batch that encountered an error.

        This is zero until processing of the entire Message Batch has ended.

      • long expired

        Number of requests in the Message Batch that have expired.

        This is zero until processing of the entire Message Batch has ended.

      • long processing

        Number of requests in the Message Batch that are processing.

      • long succeeded

        Number of requests in the Message Batch that have completed successfully.

        This is zero until processing of the entire Message Batch has ended.

    • Optional<String> resultsUrl

      URL to a .jsonl file containing the results of the Message Batch requests. Specified only once processing ends.

      Results in the file are not guaranteed to be in the same order as requests. Use the custom_id field to match results to requests.

    • JsonValue; type "message_batch"constant

      Object type.

      For Message Batches, this is always "message_batch".

      • MESSAGE_BATCH("message_batch")

Message Batch Canceled Result

  • class MessageBatchCanceledResult:

    • JsonValue; type "canceled"constant

      • CANCELED("canceled")

Message Batch Errored Result

  • class MessageBatchErroredResult:

    • ErrorResponse error

      • ErrorObject error

        • class InvalidRequestError:

          • String message

          • JsonValue; type "invalid_request_error"constant

            • INVALID_REQUEST_ERROR("invalid_request_error")
        • class AuthenticationError:

          • String message

          • JsonValue; type "authentication_error"constant

            • AUTHENTICATION_ERROR("authentication_error")
        • class BillingError:

          • String message

          • JsonValue; type "billing_error"constant

            • BILLING_ERROR("billing_error")
        • class PermissionError:

          • String message

          • JsonValue; type "permission_error"constant

            • PERMISSION_ERROR("permission_error")
        • class NotFoundError:

          • String message

          • JsonValue; type "not_found_error"constant

            • NOT_FOUND_ERROR("not_found_error")
        • class RateLimitError:

          • String message

          • JsonValue; type "rate_limit_error"constant

            • RATE_LIMIT_ERROR("rate_limit_error")
        • class GatewayTimeoutError:

          • String message

          • JsonValue; type "timeout_error"constant

            • TIMEOUT_ERROR("timeout_error")
        • class ApiErrorObject:

          • String message

          • JsonValue; type "api_error"constant

            • API_ERROR("api_error")
        • class OverloadedError:

          • String message

          • JsonValue; type "overloaded_error"constant

            • OVERLOADED_ERROR("overloaded_error")
      • Optional<String> requestId

      • JsonValue; type "error"constant

        • ERROR("error")
    • JsonValue; type "errored"constant

      • ERRORED("errored")

Message Batch Expired Result

  • class MessageBatchExpiredResult:

    • JsonValue; type "expired"constant

      • EXPIRED("expired")

Message Batch Individual Response

  • class MessageBatchIndividualResponse:

    This is a single line in the response .jsonl file and does not represent the response as a whole.

    • String customId

      Developer-provided ID created for each request in a Message Batch. Useful for matching results to requests, as results may be given out of request order.

      Must be unique for each request within the Message Batch.

    • MessageBatchResult result

      Processing result for this request.

      Contains a Message output if processing was successful, an error response if processing failed, or the reason why processing was not attempted, such as cancellation or expiration.

      • class MessageBatchSucceededResult:

        • Message message

          • String id

            Unique object identifier.

            The format and length of IDs may change over time.

          • Optional<Container> container

            Information about the container used in the request (for the code execution tool)

            • String id

              Identifier for the container used in this request

            • LocalDateTime expiresAt

              The time at which the container will expire.

          • List<ContentBlock> content

            Content generated by the model.

            This is an array of content blocks, each of which has a type that determines its shape.

            Example:

            [{"type": "text", "text": "Hi, I'm Claude."}]

            If the request input messages ended with an assistant turn, then the response content will continue directly from that last turn. You can use this to constrain the model’s output.

            For example, if the input messages were:

            [
              {"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
              {"role": "assistant", "content": "The best answer is ("}
            ]

            Then the response content might be:

            [{"type": "text", "text": "B)"}]
            • class TextBlock:

              • Optional<List<TextCitation>> citations

                Citations supporting the text block.

                The type of citation returned will depend on the type of document being cited. Citing a PDF results in page_location, plain text results in char_location, and content document results in content_block_location.

                • class CitationCharLocation:

                  • String citedText

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endCharIndex

                  • Optional<String> fileId

                  • long startCharIndex

                  • JsonValue; type "char_location"constant

                    • CHAR_LOCATION("char_location")
                • class CitationPageLocation:

                  • String citedText

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endPageNumber

                  • Optional<String> fileId

                  • long startPageNumber

                  • JsonValue; type "page_location"constant

                    • PAGE_LOCATION("page_location")
                • class CitationContentBlockLocation:

                  • String citedText

                    The full text of the cited block range, concatenated.

                    Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                  • long documentIndex

                  • Optional<String> documentTitle

                  • long endBlockIndex

                    Exclusive 0-based end index of the cited block range in the source’s content array.

                    Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                  • Optional<String> fileId

                  • long startBlockIndex

                    0-based index of the first cited block in the source’s content array.

                  • JsonValue; type "content_block_location"constant

                    • CONTENT_BLOCK_LOCATION("content_block_location")
                • class CitationsWebSearchResultLocation:

                  • String citedText

                  • String encryptedIndex

                  • Optional<String> title

                  • JsonValue; type "web_search_result_location"constant

                    • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                  • String url

                • class CitationsSearchResultLocation:

                  • String citedText

                    The full text of the cited block range, concatenated.

                    Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                  • long endBlockIndex

                    Exclusive 0-based end index of the cited block range in the source’s content array.

                    Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                  • long searchResultIndex

                    0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                    Counted separately from document_index; server-side web search results are not included in this count.

                  • String source

                  • long startBlockIndex

                    0-based index of the first cited block in the source’s content array.

                  • Optional<String> title

                  • JsonValue; type "search_result_location"constant

                    • SEARCH_RESULT_LOCATION("search_result_location")
              • String text

              • JsonValue; type "text"constant

                • TEXT("text")
            • class ThinkingBlock:

              • String signature

              • String thinking

              • JsonValue; type "thinking"constant

                • THINKING("thinking")
            • class RedactedThinkingBlock:

              • String data

              • JsonValue; type "redacted_thinking"constant

                • REDACTED_THINKING("redacted_thinking")
            • class ToolUseBlock:

              • String id

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Input input

              • String name

              • JsonValue; type "tool_use"constant

                • TOOL_USE("tool_use")
            • class ServerToolUseBlock:

              • String id

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Input input

              • Name name

                • WEB_SEARCH("web_search")

                • WEB_FETCH("web_fetch")

                • CODE_EXECUTION("code_execution")

                • BASH_CODE_EXECUTION("bash_code_execution")

                • TEXT_EDITOR_CODE_EXECUTION("text_editor_code_execution")

                • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

                • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

              • JsonValue; type "server_tool_use"constant

                • SERVER_TOOL_USE("server_tool_use")
            • class WebSearchToolResultBlock:

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • WebSearchToolResultBlockContent content

                • class WebSearchToolResultError:

                  • WebSearchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • MAX_USES_EXCEEDED("max_uses_exceeded")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • QUERY_TOO_LONG("query_too_long")

                    • REQUEST_TOO_LARGE("request_too_large")

                  • JsonValue; type "web_search_tool_result_error"constant

                    • WEB_SEARCH_TOOL_RESULT_ERROR("web_search_tool_result_error")
                • List<WebSearchResultBlock>

                  • String encryptedContent

                  • Optional<String> pageAge

                  • String title

                  • JsonValue; type "web_search_result"constant

                    • WEB_SEARCH_RESULT("web_search_result")
                  • String url

              • String toolUseId

              • JsonValue; type "web_search_tool_result"constant

                • WEB_SEARCH_TOOL_RESULT("web_search_tool_result")
            • class WebFetchToolResultBlock:

              • Caller caller

                Tool invocation directly from the model.

                • class DirectCaller:

                  Tool invocation directly from the model.

                  • JsonValue; type "direct"constant

                    • DIRECT("direct")
                • class ServerToolCaller:

                  Tool invocation generated by a server-side tool.

                  • String toolId

                  • JsonValue; type "code_execution_20250825"constant

                    • CODE_EXECUTION_20250825("code_execution_20250825")
                • class ServerToolCaller20260120:

                  • String toolId

                  • JsonValue; type "code_execution_20260120"constant

                    • CODE_EXECUTION_20260120("code_execution_20260120")
              • Content content

                • class WebFetchToolResultErrorBlock:

                  • WebFetchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • URL_TOO_LONG("url_too_long")

                    • URL_NOT_ALLOWED("url_not_allowed")

                    • URL_NOT_ACCESSIBLE("url_not_accessible")

                    • UNSUPPORTED_CONTENT_TYPE("unsupported_content_type")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • MAX_USES_EXCEEDED("max_uses_exceeded")

                    • UNAVAILABLE("unavailable")

                  • JsonValue; type "web_fetch_tool_result_error"constant

                    • WEB_FETCH_TOOL_RESULT_ERROR("web_fetch_tool_result_error")
                • class WebFetchBlock:

                  • DocumentBlock content

                    • Optional<CitationsConfig> citations

                      Citation configuration for the document

                      • boolean enabled
                    • Source source

                      • class Base64PdfSource:

                        • String data

                        • JsonValue; mediaType "application/pdf"constant

                          • APPLICATION_PDF("application/pdf")
                        • JsonValue; type "base64"constant

                          • BASE64("base64")
                      • class PlainTextSource:

                        • String data

                        • JsonValue; mediaType "text/plain"constant

                          • TEXT_PLAIN("text/plain")
                        • JsonValue; type "text"constant

                          • TEXT("text")
                    • Optional<String> title

                      The title of the document

                    • JsonValue; type "document"constant

                      • DOCUMENT("document")
                  • Optional<String> retrievedAt

                    ISO 8601 timestamp when the content was retrieved

                  • JsonValue; type "web_fetch_result"constant

                    • WEB_FETCH_RESULT("web_fetch_result")
                  • String url

                    Fetched content URL

              • String toolUseId

              • JsonValue; type "web_fetch_tool_result"constant

                • WEB_FETCH_TOOL_RESULT("web_fetch_tool_result")
            • class CodeExecutionToolResultBlock:

              • CodeExecutionToolResultBlockContent content

                Code execution result with encrypted stdout for PFC + web_search results.

                • class CodeExecutionToolResultError:

                  • CodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • JsonValue; type "code_execution_tool_result_error"constant

                    • CODE_EXECUTION_TOOL_RESULT_ERROR("code_execution_tool_result_error")
                • class CodeExecutionResultBlock:

                  • List<CodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "code_execution_output"constant

                      • CODE_EXECUTION_OUTPUT("code_execution_output")
                  • long returnCode

                  • String stderr

                  • String stdout

                  • JsonValue; type "code_execution_result"constant

                    • CODE_EXECUTION_RESULT("code_execution_result")
                • class EncryptedCodeExecutionResultBlock:

                  Code execution result with encrypted stdout for PFC + web_search results.

                  • List<CodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "code_execution_output"constant

                      • CODE_EXECUTION_OUTPUT("code_execution_output")
                  • String encryptedStdout

                  • long returnCode

                  • String stderr

                  • JsonValue; type "encrypted_code_execution_result"constant

                    • ENCRYPTED_CODE_EXECUTION_RESULT("encrypted_code_execution_result")
              • String toolUseId

              • JsonValue; type "code_execution_tool_result"constant

                • CODE_EXECUTION_TOOL_RESULT("code_execution_tool_result")
            • class BashCodeExecutionToolResultBlock:

              • Content content

                • class BashCodeExecutionToolResultError:

                  • BashCodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • OUTPUT_FILE_TOO_LARGE("output_file_too_large")

                  • JsonValue; type "bash_code_execution_tool_result_error"constant

                    • BASH_CODE_EXECUTION_TOOL_RESULT_ERROR("bash_code_execution_tool_result_error")
                • class BashCodeExecutionResultBlock:

                  • List<BashCodeExecutionOutputBlock> content

                    • String fileId

                    • JsonValue; type "bash_code_execution_output"constant

                      • BASH_CODE_EXECUTION_OUTPUT("bash_code_execution_output")
                  • long returnCode

                  • String stderr

                  • String stdout

                  • JsonValue; type "bash_code_execution_result"constant

                    • BASH_CODE_EXECUTION_RESULT("bash_code_execution_result")
              • String toolUseId

              • JsonValue; type "bash_code_execution_tool_result"constant

                • BASH_CODE_EXECUTION_TOOL_RESULT("bash_code_execution_tool_result")
            • class TextEditorCodeExecutionToolResultBlock:

              • Content content

                • class TextEditorCodeExecutionToolResultError:

                  • TextEditorCodeExecutionToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                    • FILE_NOT_FOUND("file_not_found")

                  • Optional<String> errorMessage

                  • JsonValue; type "text_editor_code_execution_tool_result_error"constant

                    • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT_ERROR("text_editor_code_execution_tool_result_error")
                • class TextEditorCodeExecutionViewResultBlock:

                  • String content

                  • FileType fileType

                    • TEXT("text")

                    • IMAGE("image")

                    • PDF("pdf")

                  • Optional<Long> numLines

                  • Optional<Long> startLine

                  • Optional<Long> totalLines

                  • JsonValue; type "text_editor_code_execution_view_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_VIEW_RESULT("text_editor_code_execution_view_result")
                • class TextEditorCodeExecutionCreateResultBlock:

                  • boolean isFileUpdate

                  • JsonValue; type "text_editor_code_execution_create_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_CREATE_RESULT("text_editor_code_execution_create_result")
                • class TextEditorCodeExecutionStrReplaceResultBlock:

                  • Optional<List<String>> lines

                  • Optional<Long> newLines

                  • Optional<Long> newStart

                  • Optional<Long> oldLines

                  • Optional<Long> oldStart

                  • JsonValue; type "text_editor_code_execution_str_replace_result"constant

                    • TEXT_EDITOR_CODE_EXECUTION_STR_REPLACE_RESULT("text_editor_code_execution_str_replace_result")
              • String toolUseId

              • JsonValue; type "text_editor_code_execution_tool_result"constant

                • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT("text_editor_code_execution_tool_result")
            • class ToolSearchToolResultBlock:

              • Content content

                • class ToolSearchToolResultError:

                  • ToolSearchToolResultErrorCode errorCode

                    • INVALID_TOOL_INPUT("invalid_tool_input")

                    • UNAVAILABLE("unavailable")

                    • TOO_MANY_REQUESTS("too_many_requests")

                    • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • Optional<String> errorMessage

                  • JsonValue; type "tool_search_tool_result_error"constant

                    • TOOL_SEARCH_TOOL_RESULT_ERROR("tool_search_tool_result_error")
                • class ToolSearchToolSearchResultBlock:

                  • List<ToolReferenceBlock> toolReferences

                    • String toolName

                    • JsonValue; type "tool_reference"constant

                      • TOOL_REFERENCE("tool_reference")
                  • JsonValue; type "tool_search_tool_search_result"constant

                    • TOOL_SEARCH_TOOL_SEARCH_RESULT("tool_search_tool_search_result")
              • String toolUseId

              • JsonValue; type "tool_search_tool_result"constant

                • TOOL_SEARCH_TOOL_RESULT("tool_search_tool_result")
            • class ContainerUploadBlock:

              Response model for a file uploaded to the container.

              • String fileId

              • JsonValue; type "container_upload"constant

                • CONTAINER_UPLOAD("container_upload")
          • Model model

            The model that will complete your prompt.

            See models for additional details and options.

            • CLAUDE_OPUS_4_7("claude-opus-4-7")

              Frontier intelligence for long-running agents and coding

            • CLAUDE_MYTHOS_PREVIEW("claude-mythos-preview")

              New class of intelligence, strongest in coding and cybersecurity

            • CLAUDE_OPUS_4_6("claude-opus-4-6")

              Frontier intelligence for long-running agents and coding

            • CLAUDE_SONNET_4_6("claude-sonnet-4-6")

              Best combination of speed and intelligence

            • CLAUDE_HAIKU_4_5("claude-haiku-4-5")

              Fastest model with near-frontier intelligence

            • CLAUDE_HAIKU_4_5_20251001("claude-haiku-4-5-20251001")

              Fastest model with near-frontier intelligence

            • CLAUDE_OPUS_4_5("claude-opus-4-5")

              Premium model combining maximum intelligence with practical performance

            • CLAUDE_OPUS_4_5_20251101("claude-opus-4-5-20251101")

              Premium model combining maximum intelligence with practical performance

            • CLAUDE_SONNET_4_5("claude-sonnet-4-5")

              High-performance model for agents and coding

            • CLAUDE_SONNET_4_5_20250929("claude-sonnet-4-5-20250929")

              High-performance model for agents and coding

            • CLAUDE_OPUS_4_1("claude-opus-4-1")

              Exceptional model for specialized complex tasks

            • CLAUDE_OPUS_4_1_20250805("claude-opus-4-1-20250805")

              Exceptional model for specialized complex tasks

            • CLAUDE_OPUS_4_0("claude-opus-4-0")

              Powerful model for complex tasks

            • CLAUDE_OPUS_4_20250514("claude-opus-4-20250514")

              Powerful model for complex tasks

            • CLAUDE_SONNET_4_0("claude-sonnet-4-0")

              High-performance model with extended thinking

            • CLAUDE_SONNET_4_20250514("claude-sonnet-4-20250514")

              High-performance model with extended thinking

            • CLAUDE_3_HAIKU_20240307("claude-3-haiku-20240307")

              Fast and cost-effective model

          • JsonValue; role "assistant"constant

            Conversational role of the generated message.

            This will always be "assistant".

            • ASSISTANT("assistant")
          • Optional<RefusalStopDetails> stopDetails

            Structured information about a refusal.

            • Optional<Category> category

              The policy category that triggered the refusal.

              null when the refusal doesn’t map to a named category.

              • CYBER("cyber")

              • BIO("bio")

            • Optional<String> explanation

              Human-readable explanation of the refusal.

              This text is not guaranteed to be stable. null when no explanation is available for the category.

            • JsonValue; type "refusal"constant

              • REFUSAL("refusal")
          • Optional<StopReason> stopReason

            The reason that we stopped.

            This may be one the following values:

            • "end_turn": the model reached a natural stopping point
            • "max_tokens": we exceeded the requested max_tokens or the model’s maximum
            • "stop_sequence": one of your provided custom stop_sequences was generated
            • "tool_use": the model invoked one or more tools
            • "pause_turn": we paused a long-running turn. You may provide the response back as-is in a subsequent request to let the model continue.
            • "refusal": when streaming classifiers intervene to handle potential policy violations

            In non-streaming mode this value is always non-null. In streaming mode, it is null in the message_start event and non-null otherwise.

            • END_TURN("end_turn")

            • MAX_TOKENS("max_tokens")

            • STOP_SEQUENCE("stop_sequence")

            • TOOL_USE("tool_use")

            • PAUSE_TURN("pause_turn")

            • REFUSAL("refusal")

          • Optional<String> stopSequence

            Which custom stop sequence was generated, if any.

            This value will be a non-null string if one of your custom stop sequences was generated.

          • JsonValue; type "message"constant

            Object type.

            For Messages, this is always "message".

            • MESSAGE("message")
          • Usage usage

            Billing and rate-limit usage.

            Anthropic’s API bills and rate-limits by token counts, as tokens represent the underlying cost to our systems.

            Under the hood, the API transforms requests into a format suitable for the model. The model’s output then goes through a parsing stage before becoming an API response. As a result, the token counts in usage will not match one-to-one with the exact visible content of an API request or response.

            For example, output_tokens will be non-zero, even for an empty string response from Claude.

            Total input tokens in a request is the summation of input_tokens, cache_creation_input_tokens, and cache_read_input_tokens.

            • Optional<CacheCreation> cacheCreation

              Breakdown of cached tokens by TTL

              • long ephemeral1hInputTokens

                The number of input tokens used to create the 1 hour cache entry.

              • long ephemeral5mInputTokens

                The number of input tokens used to create the 5 minute cache entry.

            • Optional<Long> cacheCreationInputTokens

              The number of input tokens used to create the cache entry.

            • Optional<Long> cacheReadInputTokens

              The number of input tokens read from the cache.

            • Optional<String> inferenceGeo

              The geographic region where inference was performed for this request.

            • long inputTokens

              The number of input tokens which were used.

            • long outputTokens

              The number of output tokens which were used.

            • Optional<ServerToolUsage> serverToolUse

              The number of server tool requests.

              • long webFetchRequests

                The number of web fetch tool requests.

              • long webSearchRequests

                The number of web search tool requests.

            • Optional<ServiceTier> serviceTier

              If the request used the priority, standard, or batch tier.

              • STANDARD("standard")

              • PRIORITY("priority")

              • BATCH("batch")

        • JsonValue; type "succeeded"constant

          • SUCCEEDED("succeeded")
      • class MessageBatchErroredResult:

        • ErrorResponse error

          • ErrorObject error

            • class InvalidRequestError:

              • String message

              • JsonValue; type "invalid_request_error"constant

                • INVALID_REQUEST_ERROR("invalid_request_error")
            • class AuthenticationError:

              • String message

              • JsonValue; type "authentication_error"constant

                • AUTHENTICATION_ERROR("authentication_error")
            • class BillingError:

              • String message

              • JsonValue; type "billing_error"constant

                • BILLING_ERROR("billing_error")
            • class PermissionError:

              • String message

              • JsonValue; type "permission_error"constant

                • PERMISSION_ERROR("permission_error")
            • class NotFoundError:

              • String message

              • JsonValue; type "not_found_error"constant

                • NOT_FOUND_ERROR("not_found_error")
            • class RateLimitError:

              • String message

              • JsonValue; type "rate_limit_error"constant

                • RATE_LIMIT_ERROR("rate_limit_error")
            • class GatewayTimeoutError:

              • String message

              • JsonValue; type "timeout_error"constant

                • TIMEOUT_ERROR("timeout_error")
            • class ApiErrorObject:

              • String message

              • JsonValue; type "api_error"constant

                • API_ERROR("api_error")
            • class OverloadedError:

              • String message

              • JsonValue; type "overloaded_error"constant

                • OVERLOADED_ERROR("overloaded_error")
          • Optional<String> requestId

          • JsonValue; type "error"constant

            • ERROR("error")
        • JsonValue; type "errored"constant

          • ERRORED("errored")
      • class MessageBatchCanceledResult:

        • JsonValue; type "canceled"constant

          • CANCELED("canceled")
      • class MessageBatchExpiredResult:

        • JsonValue; type "expired"constant

          • EXPIRED("expired")

Message Batch Request Counts

  • class MessageBatchRequestCounts:

    • long canceled

      Number of requests in the Message Batch that have been canceled.

      This is zero until processing of the entire Message Batch has ended.

    • long errored

      Number of requests in the Message Batch that encountered an error.

      This is zero until processing of the entire Message Batch has ended.

    • long expired

      Number of requests in the Message Batch that have expired.

      This is zero until processing of the entire Message Batch has ended.

    • long processing

      Number of requests in the Message Batch that are processing.

    • long succeeded

      Number of requests in the Message Batch that have completed successfully.

      This is zero until processing of the entire Message Batch has ended.

Message Batch Result

  • class MessageBatchResult: A class that can be one of several variants.union

    Processing result for this request.

    Contains a Message output if processing was successful, an error response if processing failed, or the reason why processing was not attempted, such as cancellation or expiration.

    • class MessageBatchSucceededResult:

      • Message message

        • String id

          Unique object identifier.

          The format and length of IDs may change over time.

        • Optional<Container> container

          Information about the container used in the request (for the code execution tool)

          • String id

            Identifier for the container used in this request

          • LocalDateTime expiresAt

            The time at which the container will expire.

        • List<ContentBlock> content

          Content generated by the model.

          This is an array of content blocks, each of which has a type that determines its shape.

          Example:

          [{"type": "text", "text": "Hi, I'm Claude."}]

          If the request input messages ended with an assistant turn, then the response content will continue directly from that last turn. You can use this to constrain the model’s output.

          For example, if the input messages were:

          [
            {"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
            {"role": "assistant", "content": "The best answer is ("}
          ]

          Then the response content might be:

          [{"type": "text", "text": "B)"}]
          • class TextBlock:

            • Optional<List<TextCitation>> citations

              Citations supporting the text block.

              The type of citation returned will depend on the type of document being cited. Citing a PDF results in page_location, plain text results in char_location, and content document results in content_block_location.

              • class CitationCharLocation:

                • String citedText

                • long documentIndex

                • Optional<String> documentTitle

                • long endCharIndex

                • Optional<String> fileId

                • long startCharIndex

                • JsonValue; type "char_location"constant

                  • CHAR_LOCATION("char_location")
              • class CitationPageLocation:

                • String citedText

                • long documentIndex

                • Optional<String> documentTitle

                • long endPageNumber

                • Optional<String> fileId

                • long startPageNumber

                • JsonValue; type "page_location"constant

                  • PAGE_LOCATION("page_location")
              • class CitationContentBlockLocation:

                • String citedText

                  The full text of the cited block range, concatenated.

                  Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                • long documentIndex

                • Optional<String> documentTitle

                • long endBlockIndex

                  Exclusive 0-based end index of the cited block range in the source’s content array.

                  Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                • Optional<String> fileId

                • long startBlockIndex

                  0-based index of the first cited block in the source’s content array.

                • JsonValue; type "content_block_location"constant

                  • CONTENT_BLOCK_LOCATION("content_block_location")
              • class CitationsWebSearchResultLocation:

                • String citedText

                • String encryptedIndex

                • Optional<String> title

                • JsonValue; type "web_search_result_location"constant

                  • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
                • String url

              • class CitationsSearchResultLocation:

                • String citedText

                  The full text of the cited block range, concatenated.

                  Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

                • long endBlockIndex

                  Exclusive 0-based end index of the cited block range in the source’s content array.

                  Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

                • long searchResultIndex

                  0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                  Counted separately from document_index; server-side web search results are not included in this count.

                • String source

                • long startBlockIndex

                  0-based index of the first cited block in the source’s content array.

                • Optional<String> title

                • JsonValue; type "search_result_location"constant

                  • SEARCH_RESULT_LOCATION("search_result_location")
            • String text

            • JsonValue; type "text"constant

              • TEXT("text")
          • class ThinkingBlock:

            • String signature

            • String thinking

            • JsonValue; type "thinking"constant

              • THINKING("thinking")
          • class RedactedThinkingBlock:

            • String data

            • JsonValue; type "redacted_thinking"constant

              • REDACTED_THINKING("redacted_thinking")
          • class ToolUseBlock:

            • String id

            • Caller caller

              Tool invocation directly from the model.

              • class DirectCaller:

                Tool invocation directly from the model.

                • JsonValue; type "direct"constant

                  • DIRECT("direct")
              • class ServerToolCaller:

                Tool invocation generated by a server-side tool.

                • String toolId

                • JsonValue; type "code_execution_20250825"constant

                  • CODE_EXECUTION_20250825("code_execution_20250825")
              • class ServerToolCaller20260120:

                • String toolId

                • JsonValue; type "code_execution_20260120"constant

                  • CODE_EXECUTION_20260120("code_execution_20260120")
            • Input input

            • String name

            • JsonValue; type "tool_use"constant

              • TOOL_USE("tool_use")
          • class ServerToolUseBlock:

            • String id

            • Caller caller

              Tool invocation directly from the model.

              • class DirectCaller:

                Tool invocation directly from the model.

                • JsonValue; type "direct"constant

                  • DIRECT("direct")
              • class ServerToolCaller:

                Tool invocation generated by a server-side tool.

                • String toolId

                • JsonValue; type "code_execution_20250825"constant

                  • CODE_EXECUTION_20250825("code_execution_20250825")
              • class ServerToolCaller20260120:

                • String toolId

                • JsonValue; type "code_execution_20260120"constant

                  • CODE_EXECUTION_20260120("code_execution_20260120")
            • Input input

            • Name name

              • WEB_SEARCH("web_search")

              • WEB_FETCH("web_fetch")

              • CODE_EXECUTION("code_execution")

              • BASH_CODE_EXECUTION("bash_code_execution")

              • TEXT_EDITOR_CODE_EXECUTION("text_editor_code_execution")

              • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

              • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

            • JsonValue; type "server_tool_use"constant

              • SERVER_TOOL_USE("server_tool_use")
          • class WebSearchToolResultBlock:

            • Caller caller

              Tool invocation directly from the model.

              • class DirectCaller:

                Tool invocation directly from the model.

                • JsonValue; type "direct"constant

                  • DIRECT("direct")
              • class ServerToolCaller:

                Tool invocation generated by a server-side tool.

                • String toolId

                • JsonValue; type "code_execution_20250825"constant

                  • CODE_EXECUTION_20250825("code_execution_20250825")
              • class ServerToolCaller20260120:

                • String toolId

                • JsonValue; type "code_execution_20260120"constant

                  • CODE_EXECUTION_20260120("code_execution_20260120")
            • WebSearchToolResultBlockContent content

              • class WebSearchToolResultError:

                • WebSearchToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • UNAVAILABLE("unavailable")

                  • MAX_USES_EXCEEDED("max_uses_exceeded")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • QUERY_TOO_LONG("query_too_long")

                  • REQUEST_TOO_LARGE("request_too_large")

                • JsonValue; type "web_search_tool_result_error"constant

                  • WEB_SEARCH_TOOL_RESULT_ERROR("web_search_tool_result_error")
              • List<WebSearchResultBlock>

                • String encryptedContent

                • Optional<String> pageAge

                • String title

                • JsonValue; type "web_search_result"constant

                  • WEB_SEARCH_RESULT("web_search_result")
                • String url

            • String toolUseId

            • JsonValue; type "web_search_tool_result"constant

              • WEB_SEARCH_TOOL_RESULT("web_search_tool_result")
          • class WebFetchToolResultBlock:

            • Caller caller

              Tool invocation directly from the model.

              • class DirectCaller:

                Tool invocation directly from the model.

                • JsonValue; type "direct"constant

                  • DIRECT("direct")
              • class ServerToolCaller:

                Tool invocation generated by a server-side tool.

                • String toolId

                • JsonValue; type "code_execution_20250825"constant

                  • CODE_EXECUTION_20250825("code_execution_20250825")
              • class ServerToolCaller20260120:

                • String toolId

                • JsonValue; type "code_execution_20260120"constant

                  • CODE_EXECUTION_20260120("code_execution_20260120")
            • Content content

              • class WebFetchToolResultErrorBlock:

                • WebFetchToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • URL_TOO_LONG("url_too_long")

                  • URL_NOT_ALLOWED("url_not_allowed")

                  • URL_NOT_ACCESSIBLE("url_not_accessible")

                  • UNSUPPORTED_CONTENT_TYPE("unsupported_content_type")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • MAX_USES_EXCEEDED("max_uses_exceeded")

                  • UNAVAILABLE("unavailable")

                • JsonValue; type "web_fetch_tool_result_error"constant

                  • WEB_FETCH_TOOL_RESULT_ERROR("web_fetch_tool_result_error")
              • class WebFetchBlock:

                • DocumentBlock content

                  • Optional<CitationsConfig> citations

                    Citation configuration for the document

                    • boolean enabled
                  • Source source

                    • class Base64PdfSource:

                      • String data

                      • JsonValue; mediaType "application/pdf"constant

                        • APPLICATION_PDF("application/pdf")
                      • JsonValue; type "base64"constant

                        • BASE64("base64")
                    • class PlainTextSource:

                      • String data

                      • JsonValue; mediaType "text/plain"constant

                        • TEXT_PLAIN("text/plain")
                      • JsonValue; type "text"constant

                        • TEXT("text")
                  • Optional<String> title

                    The title of the document

                  • JsonValue; type "document"constant

                    • DOCUMENT("document")
                • Optional<String> retrievedAt

                  ISO 8601 timestamp when the content was retrieved

                • JsonValue; type "web_fetch_result"constant

                  • WEB_FETCH_RESULT("web_fetch_result")
                • String url

                  Fetched content URL

            • String toolUseId

            • JsonValue; type "web_fetch_tool_result"constant

              • WEB_FETCH_TOOL_RESULT("web_fetch_tool_result")
          • class CodeExecutionToolResultBlock:

            • CodeExecutionToolResultBlockContent content

              Code execution result with encrypted stdout for PFC + web_search results.

              • class CodeExecutionToolResultError:

                • CodeExecutionToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • UNAVAILABLE("unavailable")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                • JsonValue; type "code_execution_tool_result_error"constant

                  • CODE_EXECUTION_TOOL_RESULT_ERROR("code_execution_tool_result_error")
              • class CodeExecutionResultBlock:

                • List<CodeExecutionOutputBlock> content

                  • String fileId

                  • JsonValue; type "code_execution_output"constant

                    • CODE_EXECUTION_OUTPUT("code_execution_output")
                • long returnCode

                • String stderr

                • String stdout

                • JsonValue; type "code_execution_result"constant

                  • CODE_EXECUTION_RESULT("code_execution_result")
              • class EncryptedCodeExecutionResultBlock:

                Code execution result with encrypted stdout for PFC + web_search results.

                • List<CodeExecutionOutputBlock> content

                  • String fileId

                  • JsonValue; type "code_execution_output"constant

                    • CODE_EXECUTION_OUTPUT("code_execution_output")
                • String encryptedStdout

                • long returnCode

                • String stderr

                • JsonValue; type "encrypted_code_execution_result"constant

                  • ENCRYPTED_CODE_EXECUTION_RESULT("encrypted_code_execution_result")
            • String toolUseId

            • JsonValue; type "code_execution_tool_result"constant

              • CODE_EXECUTION_TOOL_RESULT("code_execution_tool_result")
          • class BashCodeExecutionToolResultBlock:

            • Content content

              • class BashCodeExecutionToolResultError:

                • BashCodeExecutionToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • UNAVAILABLE("unavailable")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • OUTPUT_FILE_TOO_LARGE("output_file_too_large")

                • JsonValue; type "bash_code_execution_tool_result_error"constant

                  • BASH_CODE_EXECUTION_TOOL_RESULT_ERROR("bash_code_execution_tool_result_error")
              • class BashCodeExecutionResultBlock:

                • List<BashCodeExecutionOutputBlock> content

                  • String fileId

                  • JsonValue; type "bash_code_execution_output"constant

                    • BASH_CODE_EXECUTION_OUTPUT("bash_code_execution_output")
                • long returnCode

                • String stderr

                • String stdout

                • JsonValue; type "bash_code_execution_result"constant

                  • BASH_CODE_EXECUTION_RESULT("bash_code_execution_result")
            • String toolUseId

            • JsonValue; type "bash_code_execution_tool_result"constant

              • BASH_CODE_EXECUTION_TOOL_RESULT("bash_code_execution_tool_result")
          • class TextEditorCodeExecutionToolResultBlock:

            • Content content

              • class TextEditorCodeExecutionToolResultError:

                • TextEditorCodeExecutionToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • UNAVAILABLE("unavailable")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                  • FILE_NOT_FOUND("file_not_found")

                • Optional<String> errorMessage

                • JsonValue; type "text_editor_code_execution_tool_result_error"constant

                  • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT_ERROR("text_editor_code_execution_tool_result_error")
              • class TextEditorCodeExecutionViewResultBlock:

                • String content

                • FileType fileType

                  • TEXT("text")

                  • IMAGE("image")

                  • PDF("pdf")

                • Optional<Long> numLines

                • Optional<Long> startLine

                • Optional<Long> totalLines

                • JsonValue; type "text_editor_code_execution_view_result"constant

                  • TEXT_EDITOR_CODE_EXECUTION_VIEW_RESULT("text_editor_code_execution_view_result")
              • class TextEditorCodeExecutionCreateResultBlock:

                • boolean isFileUpdate

                • JsonValue; type "text_editor_code_execution_create_result"constant

                  • TEXT_EDITOR_CODE_EXECUTION_CREATE_RESULT("text_editor_code_execution_create_result")
              • class TextEditorCodeExecutionStrReplaceResultBlock:

                • Optional<List<String>> lines

                • Optional<Long> newLines

                • Optional<Long> newStart

                • Optional<Long> oldLines

                • Optional<Long> oldStart

                • JsonValue; type "text_editor_code_execution_str_replace_result"constant

                  • TEXT_EDITOR_CODE_EXECUTION_STR_REPLACE_RESULT("text_editor_code_execution_str_replace_result")
            • String toolUseId

            • JsonValue; type "text_editor_code_execution_tool_result"constant

              • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT("text_editor_code_execution_tool_result")
          • class ToolSearchToolResultBlock:

            • Content content

              • class ToolSearchToolResultError:

                • ToolSearchToolResultErrorCode errorCode

                  • INVALID_TOOL_INPUT("invalid_tool_input")

                  • UNAVAILABLE("unavailable")

                  • TOO_MANY_REQUESTS("too_many_requests")

                  • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                • Optional<String> errorMessage

                • JsonValue; type "tool_search_tool_result_error"constant

                  • TOOL_SEARCH_TOOL_RESULT_ERROR("tool_search_tool_result_error")
              • class ToolSearchToolSearchResultBlock:

                • List<ToolReferenceBlock> toolReferences

                  • String toolName

                  • JsonValue; type "tool_reference"constant

                    • TOOL_REFERENCE("tool_reference")
                • JsonValue; type "tool_search_tool_search_result"constant

                  • TOOL_SEARCH_TOOL_SEARCH_RESULT("tool_search_tool_search_result")
            • String toolUseId

            • JsonValue; type "tool_search_tool_result"constant

              • TOOL_SEARCH_TOOL_RESULT("tool_search_tool_result")
          • class ContainerUploadBlock:

            Response model for a file uploaded to the container.

            • String fileId

            • JsonValue; type "container_upload"constant

              • CONTAINER_UPLOAD("container_upload")
        • Model model

          The model that will complete your prompt.

          See models for additional details and options.

          • CLAUDE_OPUS_4_7("claude-opus-4-7")

            Frontier intelligence for long-running agents and coding

          • CLAUDE_MYTHOS_PREVIEW("claude-mythos-preview")

            New class of intelligence, strongest in coding and cybersecurity

          • CLAUDE_OPUS_4_6("claude-opus-4-6")

            Frontier intelligence for long-running agents and coding

          • CLAUDE_SONNET_4_6("claude-sonnet-4-6")

            Best combination of speed and intelligence

          • CLAUDE_HAIKU_4_5("claude-haiku-4-5")

            Fastest model with near-frontier intelligence

          • CLAUDE_HAIKU_4_5_20251001("claude-haiku-4-5-20251001")

            Fastest model with near-frontier intelligence

          • CLAUDE_OPUS_4_5("claude-opus-4-5")

            Premium model combining maximum intelligence with practical performance

          • CLAUDE_OPUS_4_5_20251101("claude-opus-4-5-20251101")

            Premium model combining maximum intelligence with practical performance

          • CLAUDE_SONNET_4_5("claude-sonnet-4-5")

            High-performance model for agents and coding

          • CLAUDE_SONNET_4_5_20250929("claude-sonnet-4-5-20250929")

            High-performance model for agents and coding

          • CLAUDE_OPUS_4_1("claude-opus-4-1")

            Exceptional model for specialized complex tasks

          • CLAUDE_OPUS_4_1_20250805("claude-opus-4-1-20250805")

            Exceptional model for specialized complex tasks

          • CLAUDE_OPUS_4_0("claude-opus-4-0")

            Powerful model for complex tasks

          • CLAUDE_OPUS_4_20250514("claude-opus-4-20250514")

            Powerful model for complex tasks

          • CLAUDE_SONNET_4_0("claude-sonnet-4-0")

            High-performance model with extended thinking

          • CLAUDE_SONNET_4_20250514("claude-sonnet-4-20250514")

            High-performance model with extended thinking

          • CLAUDE_3_HAIKU_20240307("claude-3-haiku-20240307")

            Fast and cost-effective model

        • JsonValue; role "assistant"constant

          Conversational role of the generated message.

          This will always be "assistant".

          • ASSISTANT("assistant")
        • Optional<RefusalStopDetails> stopDetails

          Structured information about a refusal.

          • Optional<Category> category

            The policy category that triggered the refusal.

            null when the refusal doesn’t map to a named category.

            • CYBER("cyber")

            • BIO("bio")

          • Optional<String> explanation

            Human-readable explanation of the refusal.

            This text is not guaranteed to be stable. null when no explanation is available for the category.

          • JsonValue; type "refusal"constant

            • REFUSAL("refusal")
        • Optional<StopReason> stopReason

          The reason that we stopped.

          This may be one the following values:

          • "end_turn": the model reached a natural stopping point
          • "max_tokens": we exceeded the requested max_tokens or the model’s maximum
          • "stop_sequence": one of your provided custom stop_sequences was generated
          • "tool_use": the model invoked one or more tools
          • "pause_turn": we paused a long-running turn. You may provide the response back as-is in a subsequent request to let the model continue.
          • "refusal": when streaming classifiers intervene to handle potential policy violations

          In non-streaming mode this value is always non-null. In streaming mode, it is null in the message_start event and non-null otherwise.

          • END_TURN("end_turn")

          • MAX_TOKENS("max_tokens")

          • STOP_SEQUENCE("stop_sequence")

          • TOOL_USE("tool_use")

          • PAUSE_TURN("pause_turn")

          • REFUSAL("refusal")

        • Optional<String> stopSequence

          Which custom stop sequence was generated, if any.

          This value will be a non-null string if one of your custom stop sequences was generated.

        • JsonValue; type "message"constant

          Object type.

          For Messages, this is always "message".

          • MESSAGE("message")
        • Usage usage

          Billing and rate-limit usage.

          Anthropic’s API bills and rate-limits by token counts, as tokens represent the underlying cost to our systems.

          Under the hood, the API transforms requests into a format suitable for the model. The model’s output then goes through a parsing stage before becoming an API response. As a result, the token counts in usage will not match one-to-one with the exact visible content of an API request or response.

          For example, output_tokens will be non-zero, even for an empty string response from Claude.

          Total input tokens in a request is the summation of input_tokens, cache_creation_input_tokens, and cache_read_input_tokens.

          • Optional<CacheCreation> cacheCreation

            Breakdown of cached tokens by TTL

            • long ephemeral1hInputTokens

              The number of input tokens used to create the 1 hour cache entry.

            • long ephemeral5mInputTokens

              The number of input tokens used to create the 5 minute cache entry.

          • Optional<Long> cacheCreationInputTokens

            The number of input tokens used to create the cache entry.

          • Optional<Long> cacheReadInputTokens

            The number of input tokens read from the cache.

          • Optional<String> inferenceGeo

            The geographic region where inference was performed for this request.

          • long inputTokens

            The number of input tokens which were used.

          • long outputTokens

            The number of output tokens which were used.

          • Optional<ServerToolUsage> serverToolUse

            The number of server tool requests.

            • long webFetchRequests

              The number of web fetch tool requests.

            • long webSearchRequests

              The number of web search tool requests.

          • Optional<ServiceTier> serviceTier

            If the request used the priority, standard, or batch tier.

            • STANDARD("standard")

            • PRIORITY("priority")

            • BATCH("batch")

      • JsonValue; type "succeeded"constant

        • SUCCEEDED("succeeded")
    • class MessageBatchErroredResult:

      • ErrorResponse error

        • ErrorObject error

          • class InvalidRequestError:

            • String message

            • JsonValue; type "invalid_request_error"constant

              • INVALID_REQUEST_ERROR("invalid_request_error")
          • class AuthenticationError:

            • String message

            • JsonValue; type "authentication_error"constant

              • AUTHENTICATION_ERROR("authentication_error")
          • class BillingError:

            • String message

            • JsonValue; type "billing_error"constant

              • BILLING_ERROR("billing_error")
          • class PermissionError:

            • String message

            • JsonValue; type "permission_error"constant

              • PERMISSION_ERROR("permission_error")
          • class NotFoundError:

            • String message

            • JsonValue; type "not_found_error"constant

              • NOT_FOUND_ERROR("not_found_error")
          • class RateLimitError:

            • String message

            • JsonValue; type "rate_limit_error"constant

              • RATE_LIMIT_ERROR("rate_limit_error")
          • class GatewayTimeoutError:

            • String message

            • JsonValue; type "timeout_error"constant

              • TIMEOUT_ERROR("timeout_error")
          • class ApiErrorObject:

            • String message

            • JsonValue; type "api_error"constant

              • API_ERROR("api_error")
          • class OverloadedError:

            • String message

            • JsonValue; type "overloaded_error"constant

              • OVERLOADED_ERROR("overloaded_error")
        • Optional<String> requestId

        • JsonValue; type "error"constant

          • ERROR("error")
      • JsonValue; type "errored"constant

        • ERRORED("errored")
    • class MessageBatchCanceledResult:

      • JsonValue; type "canceled"constant

        • CANCELED("canceled")
    • class MessageBatchExpiredResult:

      • JsonValue; type "expired"constant

        • EXPIRED("expired")

Message Batch Succeeded Result

  • class MessageBatchSucceededResult:

    • Message message

      • String id

        Unique object identifier.

        The format and length of IDs may change over time.

      • Optional<Container> container

        Information about the container used in the request (for the code execution tool)

        • String id

          Identifier for the container used in this request

        • LocalDateTime expiresAt

          The time at which the container will expire.

      • List<ContentBlock> content

        Content generated by the model.

        This is an array of content blocks, each of which has a type that determines its shape.

        Example:

        [{"type": "text", "text": "Hi, I'm Claude."}]

        If the request input messages ended with an assistant turn, then the response content will continue directly from that last turn. You can use this to constrain the model’s output.

        For example, if the input messages were:

        [
          {"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
          {"role": "assistant", "content": "The best answer is ("}
        ]

        Then the response content might be:

        [{"type": "text", "text": "B)"}]
        • class TextBlock:

          • Optional<List<TextCitation>> citations

            Citations supporting the text block.

            The type of citation returned will depend on the type of document being cited. Citing a PDF results in page_location, plain text results in char_location, and content document results in content_block_location.

            • class CitationCharLocation:

              • String citedText

              • long documentIndex

              • Optional<String> documentTitle

              • long endCharIndex

              • Optional<String> fileId

              • long startCharIndex

              • JsonValue; type "char_location"constant

                • CHAR_LOCATION("char_location")
            • class CitationPageLocation:

              • String citedText

              • long documentIndex

              • Optional<String> documentTitle

              • long endPageNumber

              • Optional<String> fileId

              • long startPageNumber

              • JsonValue; type "page_location"constant

                • PAGE_LOCATION("page_location")
            • class CitationContentBlockLocation:

              • String citedText

                The full text of the cited block range, concatenated.

                Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

              • long documentIndex

              • Optional<String> documentTitle

              • long endBlockIndex

                Exclusive 0-based end index of the cited block range in the source’s content array.

                Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

              • Optional<String> fileId

              • long startBlockIndex

                0-based index of the first cited block in the source’s content array.

              • JsonValue; type "content_block_location"constant

                • CONTENT_BLOCK_LOCATION("content_block_location")
            • class CitationsWebSearchResultLocation:

              • String citedText

              • String encryptedIndex

              • Optional<String> title

              • JsonValue; type "web_search_result_location"constant

                • WEB_SEARCH_RESULT_LOCATION("web_search_result_location")
              • String url

            • class CitationsSearchResultLocation:

              • String citedText

                The full text of the cited block range, concatenated.

                Always equals the contents of content[start_block_index:end_block_index] joined together. The text block is the minimal citable unit; this field is never a substring of a single block. Not counted toward output tokens, and not counted toward input tokens when sent back in subsequent turns.

              • long endBlockIndex

                Exclusive 0-based end index of the cited block range in the source’s content array.

                Always greater than start_block_index; a single-block citation has end_block_index = start_block_index + 1.

              • long searchResultIndex

                0-based index of the cited search result among all search_result content blocks in the request, in the order they appear across messages and tool results.

                Counted separately from document_index; server-side web search results are not included in this count.

              • String source

              • long startBlockIndex

                0-based index of the first cited block in the source’s content array.

              • Optional<String> title

              • JsonValue; type "search_result_location"constant

                • SEARCH_RESULT_LOCATION("search_result_location")
          • String text

          • JsonValue; type "text"constant

            • TEXT("text")
        • class ThinkingBlock:

          • String signature

          • String thinking

          • JsonValue; type "thinking"constant

            • THINKING("thinking")
        • class RedactedThinkingBlock:

          • String data

          • JsonValue; type "redacted_thinking"constant

            • REDACTED_THINKING("redacted_thinking")
        • class ToolUseBlock:

          • String id

          • Caller caller

            Tool invocation directly from the model.

            • class DirectCaller:

              Tool invocation directly from the model.

              • JsonValue; type "direct"constant

                • DIRECT("direct")
            • class ServerToolCaller:

              Tool invocation generated by a server-side tool.

              • String toolId

              • JsonValue; type "code_execution_20250825"constant

                • CODE_EXECUTION_20250825("code_execution_20250825")
            • class ServerToolCaller20260120:

              • String toolId

              • JsonValue; type "code_execution_20260120"constant

                • CODE_EXECUTION_20260120("code_execution_20260120")
          • Input input

          • String name

          • JsonValue; type "tool_use"constant

            • TOOL_USE("tool_use")
        • class ServerToolUseBlock:

          • String id

          • Caller caller

            Tool invocation directly from the model.

            • class DirectCaller:

              Tool invocation directly from the model.

              • JsonValue; type "direct"constant

                • DIRECT("direct")
            • class ServerToolCaller:

              Tool invocation generated by a server-side tool.

              • String toolId

              • JsonValue; type "code_execution_20250825"constant

                • CODE_EXECUTION_20250825("code_execution_20250825")
            • class ServerToolCaller20260120:

              • String toolId

              • JsonValue; type "code_execution_20260120"constant

                • CODE_EXECUTION_20260120("code_execution_20260120")
          • Input input

          • Name name

            • WEB_SEARCH("web_search")

            • WEB_FETCH("web_fetch")

            • CODE_EXECUTION("code_execution")

            • BASH_CODE_EXECUTION("bash_code_execution")

            • TEXT_EDITOR_CODE_EXECUTION("text_editor_code_execution")

            • TOOL_SEARCH_TOOL_REGEX("tool_search_tool_regex")

            • TOOL_SEARCH_TOOL_BM25("tool_search_tool_bm25")

          • JsonValue; type "server_tool_use"constant

            • SERVER_TOOL_USE("server_tool_use")
        • class WebSearchToolResultBlock:

          • Caller caller

            Tool invocation directly from the model.

            • class DirectCaller:

              Tool invocation directly from the model.

              • JsonValue; type "direct"constant

                • DIRECT("direct")
            • class ServerToolCaller:

              Tool invocation generated by a server-side tool.

              • String toolId

              • JsonValue; type "code_execution_20250825"constant

                • CODE_EXECUTION_20250825("code_execution_20250825")
            • class ServerToolCaller20260120:

              • String toolId

              • JsonValue; type "code_execution_20260120"constant

                • CODE_EXECUTION_20260120("code_execution_20260120")
          • WebSearchToolResultBlockContent content

            • class WebSearchToolResultError:

              • WebSearchToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • UNAVAILABLE("unavailable")

                • MAX_USES_EXCEEDED("max_uses_exceeded")

                • TOO_MANY_REQUESTS("too_many_requests")

                • QUERY_TOO_LONG("query_too_long")

                • REQUEST_TOO_LARGE("request_too_large")

              • JsonValue; type "web_search_tool_result_error"constant

                • WEB_SEARCH_TOOL_RESULT_ERROR("web_search_tool_result_error")
            • List<WebSearchResultBlock>

              • String encryptedContent

              • Optional<String> pageAge

              • String title

              • JsonValue; type "web_search_result"constant

                • WEB_SEARCH_RESULT("web_search_result")
              • String url

          • String toolUseId

          • JsonValue; type "web_search_tool_result"constant

            • WEB_SEARCH_TOOL_RESULT("web_search_tool_result")
        • class WebFetchToolResultBlock:

          • Caller caller

            Tool invocation directly from the model.

            • class DirectCaller:

              Tool invocation directly from the model.

              • JsonValue; type "direct"constant

                • DIRECT("direct")
            • class ServerToolCaller:

              Tool invocation generated by a server-side tool.

              • String toolId

              • JsonValue; type "code_execution_20250825"constant

                • CODE_EXECUTION_20250825("code_execution_20250825")
            • class ServerToolCaller20260120:

              • String toolId

              • JsonValue; type "code_execution_20260120"constant

                • CODE_EXECUTION_20260120("code_execution_20260120")
          • Content content

            • class WebFetchToolResultErrorBlock:

              • WebFetchToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • URL_TOO_LONG("url_too_long")

                • URL_NOT_ALLOWED("url_not_allowed")

                • URL_NOT_ACCESSIBLE("url_not_accessible")

                • UNSUPPORTED_CONTENT_TYPE("unsupported_content_type")

                • TOO_MANY_REQUESTS("too_many_requests")

                • MAX_USES_EXCEEDED("max_uses_exceeded")

                • UNAVAILABLE("unavailable")

              • JsonValue; type "web_fetch_tool_result_error"constant

                • WEB_FETCH_TOOL_RESULT_ERROR("web_fetch_tool_result_error")
            • class WebFetchBlock:

              • DocumentBlock content

                • Optional<CitationsConfig> citations

                  Citation configuration for the document

                  • boolean enabled
                • Source source

                  • class Base64PdfSource:

                    • String data

                    • JsonValue; mediaType "application/pdf"constant

                      • APPLICATION_PDF("application/pdf")
                    • JsonValue; type "base64"constant

                      • BASE64("base64")
                  • class PlainTextSource:

                    • String data

                    • JsonValue; mediaType "text/plain"constant

                      • TEXT_PLAIN("text/plain")
                    • JsonValue; type "text"constant

                      • TEXT("text")
                • Optional<String> title

                  The title of the document

                • JsonValue; type "document"constant

                  • DOCUMENT("document")
              • Optional<String> retrievedAt

                ISO 8601 timestamp when the content was retrieved

              • JsonValue; type "web_fetch_result"constant

                • WEB_FETCH_RESULT("web_fetch_result")
              • String url

                Fetched content URL

          • String toolUseId

          • JsonValue; type "web_fetch_tool_result"constant

            • WEB_FETCH_TOOL_RESULT("web_fetch_tool_result")
        • class CodeExecutionToolResultBlock:

          • CodeExecutionToolResultBlockContent content

            Code execution result with encrypted stdout for PFC + web_search results.

            • class CodeExecutionToolResultError:

              • CodeExecutionToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • UNAVAILABLE("unavailable")

                • TOO_MANY_REQUESTS("too_many_requests")

                • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

              • JsonValue; type "code_execution_tool_result_error"constant

                • CODE_EXECUTION_TOOL_RESULT_ERROR("code_execution_tool_result_error")
            • class CodeExecutionResultBlock:

              • List<CodeExecutionOutputBlock> content

                • String fileId

                • JsonValue; type "code_execution_output"constant

                  • CODE_EXECUTION_OUTPUT("code_execution_output")
              • long returnCode

              • String stderr

              • String stdout

              • JsonValue; type "code_execution_result"constant

                • CODE_EXECUTION_RESULT("code_execution_result")
            • class EncryptedCodeExecutionResultBlock:

              Code execution result with encrypted stdout for PFC + web_search results.

              • List<CodeExecutionOutputBlock> content

                • String fileId

                • JsonValue; type "code_execution_output"constant

                  • CODE_EXECUTION_OUTPUT("code_execution_output")
              • String encryptedStdout

              • long returnCode

              • String stderr

              • JsonValue; type "encrypted_code_execution_result"constant

                • ENCRYPTED_CODE_EXECUTION_RESULT("encrypted_code_execution_result")
          • String toolUseId

          • JsonValue; type "code_execution_tool_result"constant

            • CODE_EXECUTION_TOOL_RESULT("code_execution_tool_result")
        • class BashCodeExecutionToolResultBlock:

          • Content content

            • class BashCodeExecutionToolResultError:

              • BashCodeExecutionToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • UNAVAILABLE("unavailable")

                • TOO_MANY_REQUESTS("too_many_requests")

                • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                • OUTPUT_FILE_TOO_LARGE("output_file_too_large")

              • JsonValue; type "bash_code_execution_tool_result_error"constant

                • BASH_CODE_EXECUTION_TOOL_RESULT_ERROR("bash_code_execution_tool_result_error")
            • class BashCodeExecutionResultBlock:

              • List<BashCodeExecutionOutputBlock> content

                • String fileId

                • JsonValue; type "bash_code_execution_output"constant

                  • BASH_CODE_EXECUTION_OUTPUT("bash_code_execution_output")
              • long returnCode

              • String stderr

              • String stdout

              • JsonValue; type "bash_code_execution_result"constant

                • BASH_CODE_EXECUTION_RESULT("bash_code_execution_result")
          • String toolUseId

          • JsonValue; type "bash_code_execution_tool_result"constant

            • BASH_CODE_EXECUTION_TOOL_RESULT("bash_code_execution_tool_result")
        • class TextEditorCodeExecutionToolResultBlock:

          • Content content

            • class TextEditorCodeExecutionToolResultError:

              • TextEditorCodeExecutionToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • UNAVAILABLE("unavailable")

                • TOO_MANY_REQUESTS("too_many_requests")

                • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

                • FILE_NOT_FOUND("file_not_found")

              • Optional<String> errorMessage

              • JsonValue; type "text_editor_code_execution_tool_result_error"constant

                • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT_ERROR("text_editor_code_execution_tool_result_error")
            • class TextEditorCodeExecutionViewResultBlock:

              • String content

              • FileType fileType

                • TEXT("text")

                • IMAGE("image")

                • PDF("pdf")

              • Optional<Long> numLines

              • Optional<Long> startLine

              • Optional<Long> totalLines

              • JsonValue; type "text_editor_code_execution_view_result"constant

                • TEXT_EDITOR_CODE_EXECUTION_VIEW_RESULT("text_editor_code_execution_view_result")
            • class TextEditorCodeExecutionCreateResultBlock:

              • boolean isFileUpdate

              • JsonValue; type "text_editor_code_execution_create_result"constant

                • TEXT_EDITOR_CODE_EXECUTION_CREATE_RESULT("text_editor_code_execution_create_result")
            • class TextEditorCodeExecutionStrReplaceResultBlock:

              • Optional<List<String>> lines

              • Optional<Long> newLines

              • Optional<Long> newStart

              • Optional<Long> oldLines

              • Optional<Long> oldStart

              • JsonValue; type "text_editor_code_execution_str_replace_result"constant

                • TEXT_EDITOR_CODE_EXECUTION_STR_REPLACE_RESULT("text_editor_code_execution_str_replace_result")
          • String toolUseId

          • JsonValue; type "text_editor_code_execution_tool_result"constant

            • TEXT_EDITOR_CODE_EXECUTION_TOOL_RESULT("text_editor_code_execution_tool_result")
        • class ToolSearchToolResultBlock:

          • Content content

            • class ToolSearchToolResultError:

              • ToolSearchToolResultErrorCode errorCode

                • INVALID_TOOL_INPUT("invalid_tool_input")

                • UNAVAILABLE("unavailable")

                • TOO_MANY_REQUESTS("too_many_requests")

                • EXECUTION_TIME_EXCEEDED("execution_time_exceeded")

              • Optional<String> errorMessage

              • JsonValue; type "tool_search_tool_result_error"constant

                • TOOL_SEARCH_TOOL_RESULT_ERROR("tool_search_tool_result_error")
            • class ToolSearchToolSearchResultBlock:

              • List<ToolReferenceBlock> toolReferences

                • String toolName

                • JsonValue; type "tool_reference"constant

                  • TOOL_REFERENCE("tool_reference")
              • JsonValue; type "tool_search_tool_search_result"constant

                • TOOL_SEARCH_TOOL_SEARCH_RESULT("tool_search_tool_search_result")
          • String toolUseId

          • JsonValue; type "tool_search_tool_result"constant

            • TOOL_SEARCH_TOOL_RESULT("tool_search_tool_result")
        • class ContainerUploadBlock:

          Response model for a file uploaded to the container.

          • String fileId

          • JsonValue; type "container_upload"constant

            • CONTAINER_UPLOAD("container_upload")
      • Model model

        The model that will complete your prompt.

        See models for additional details and options.

        • CLAUDE_OPUS_4_7("claude-opus-4-7")

          Frontier intelligence for long-running agents and coding

        • CLAUDE_MYTHOS_PREVIEW("claude-mythos-preview")

          New class of intelligence, strongest in coding and cybersecurity

        • CLAUDE_OPUS_4_6("claude-opus-4-6")

          Frontier intelligence for long-running agents and coding

        • CLAUDE_SONNET_4_6("claude-sonnet-4-6")

          Best combination of speed and intelligence

        • CLAUDE_HAIKU_4_5("claude-haiku-4-5")

          Fastest model with near-frontier intelligence

        • CLAUDE_HAIKU_4_5_20251001("claude-haiku-4-5-20251001")

          Fastest model with near-frontier intelligence

        • CLAUDE_OPUS_4_5("claude-opus-4-5")

          Premium model combining maximum intelligence with practical performance

        • CLAUDE_OPUS_4_5_20251101("claude-opus-4-5-20251101")

          Premium model combining maximum intelligence with practical performance

        • CLAUDE_SONNET_4_5("claude-sonnet-4-5")

          High-performance model for agents and coding

        • CLAUDE_SONNET_4_5_20250929("claude-sonnet-4-5-20250929")

          High-performance model for agents and coding

        • CLAUDE_OPUS_4_1("claude-opus-4-1")

          Exceptional model for specialized complex tasks

        • CLAUDE_OPUS_4_1_20250805("claude-opus-4-1-20250805")

          Exceptional model for specialized complex tasks

        • CLAUDE_OPUS_4_0("claude-opus-4-0")

          Powerful model for complex tasks

        • CLAUDE_OPUS_4_20250514("claude-opus-4-20250514")

          Powerful model for complex tasks

        • CLAUDE_SONNET_4_0("claude-sonnet-4-0")

          High-performance model with extended thinking

        • CLAUDE_SONNET_4_20250514("claude-sonnet-4-20250514")

          High-performance model with extended thinking

        • CLAUDE_3_HAIKU_20240307("claude-3-haiku-20240307")

          Fast and cost-effective model

      • JsonValue; role "assistant"constant

        Conversational role of the generated message.

        This will always be "assistant".

        • ASSISTANT("assistant")
      • Optional<RefusalStopDetails> stopDetails

        Structured information about a refusal.

        • Optional<Category> category

          The policy category that triggered the refusal.

          null when the refusal doesn’t map to a named category.

          • CYBER("cyber")

          • BIO("bio")

        • Optional<String> explanation

          Human-readable explanation of the refusal.

          This text is not guaranteed to be stable. null when no explanation is available for the category.

        • JsonValue; type "refusal"constant

          • REFUSAL("refusal")
      • Optional<StopReason> stopReason

        The reason that we stopped.

        This may be one the following values:

        • "end_turn": the model reached a natural stopping point
        • "max_tokens": we exceeded the requested max_tokens or the model’s maximum
        • "stop_sequence": one of your provided custom stop_sequences was generated
        • "tool_use": the model invoked one or more tools
        • "pause_turn": we paused a long-running turn. You may provide the response back as-is in a subsequent request to let the model continue.
        • "refusal": when streaming classifiers intervene to handle potential policy violations

        In non-streaming mode this value is always non-null. In streaming mode, it is null in the message_start event and non-null otherwise.

        • END_TURN("end_turn")

        • MAX_TOKENS("max_tokens")

        • STOP_SEQUENCE("stop_sequence")

        • TOOL_USE("tool_use")

        • PAUSE_TURN("pause_turn")

        • REFUSAL("refusal")

      • Optional<String> stopSequence

        Which custom stop sequence was generated, if any.

        This value will be a non-null string if one of your custom stop sequences was generated.

      • JsonValue; type "message"constant

        Object type.

        For Messages, this is always "message".

        • MESSAGE("message")
      • Usage usage

        Billing and rate-limit usage.

        Anthropic’s API bills and rate-limits by token counts, as tokens represent the underlying cost to our systems.

        Under the hood, the API transforms requests into a format suitable for the model. The model’s output then goes through a parsing stage before becoming an API response. As a result, the token counts in usage will not match one-to-one with the exact visible content of an API request or response.

        For example, output_tokens will be non-zero, even for an empty string response from Claude.

        Total input tokens in a request is the summation of input_tokens, cache_creation_input_tokens, and cache_read_input_tokens.

        • Optional<CacheCreation> cacheCreation

          Breakdown of cached tokens by TTL

          • long ephemeral1hInputTokens

            The number of input tokens used to create the 1 hour cache entry.

          • long ephemeral5mInputTokens

            The number of input tokens used to create the 5 minute cache entry.

        • Optional<Long> cacheCreationInputTokens

          The number of input tokens used to create the cache entry.

        • Optional<Long> cacheReadInputTokens

          The number of input tokens read from the cache.

        • Optional<String> inferenceGeo

          The geographic region where inference was performed for this request.

        • long inputTokens

          The number of input tokens which were used.

        • long outputTokens

          The number of output tokens which were used.

        • Optional<ServerToolUsage> serverToolUse

          The number of server tool requests.

          • long webFetchRequests

            The number of web fetch tool requests.

          • long webSearchRequests

            The number of web search tool requests.

        • Optional<ServiceTier> serviceTier

          If the request used the priority, standard, or batch tier.

          • STANDARD("standard")

          • PRIORITY("priority")

          • BATCH("batch")

    • JsonValue; type "succeeded"constant

      • SUCCEEDED("succeeded")

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