50 pages for streaming.

fine-grained-tool-streaming Claude Developer Platform · title agents-and-tools/tool-use/fine-grained-tool-streaming streaming Claude Developer Platform · title build-with-claude/streaming events-and-streaming Claude Developer Platform · title managed-agents/events-and-streaming handle-streaming-refusals Claude Developer Platform · title test-and-evaluate/strengthen-guardrails/handle-streaming-refusals Streaming Input Claude Code CLI · title agent-sdk/streaming-vs-single-mode Stream responses in real-time Claude Code CLI · path agent-sdk/streaming-output Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …fort-2025-11-24"]` from your requests. 3. **Remove fine-grained tool streaming beta header:** Fine-grained tool streaming does not require a beta header. Remove `betas=["fine-grained-tool-streaming-2… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …ream responses](https://platform.claude.com/docs/en/build-with-claude/streaming) that large, treat [`stop_reason: max_tokens`](https://platform.claude.com/docs/en/build-with-claude/handling-stop-reaso… customer-support-chat Claude Developer Platform · in the page about-claude/use-case-guides/customer-support-chat …out any PII from responses. #### Reduce perceived response time with streaming When dealing with potentially lengthy responses, implementing streaming can improve user engagement and satisfaction. I… claude-api-skill Claude Developer Platform · in the page agents-and-tools/agent-skills/claude-api-skill …rfaces: * **Messages API:** The primary surface for single requests, streaming chat, tool use, batch processing, prompt caching, structured outputs, and custom agent loops. * **Claude Managed Agents… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …tool` and `any`, so use the prompt nudge on those models instead. ## Streaming The advisor sub-inference does not stream. The executor's stream pauses while the advisor runs; then the full result ar… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …e outputs in your application before returning them to Claude. * **No streaming:** Output reaches Claude only when your application returns the `tool_result` in the next request. ## Combining with ot… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …execution caller in `allowed_callers`, the legacy `fine-grained-tool-streaming-2025-05-14` beta header on the request, a `tool_choice` of type `tool` naming `browser` or a member, or a second browser… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …ter you send back the `tool_result` blocks for your client tools. ## Streaming With [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) enabled (`"stream": true`), you'll re… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …`strict`, `input_examples`, `defer_loading` placement, `tool_choice`, streaming, and caller restrictions, see [Client toolsets](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-refer… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …## Next steps <CardGroup cols={2}> <Card title="Fine-grained tool streaming" icon="bolt" href="https://platform.claude.com/docs/en/agents-and-tools/tool-use/fine-grained-tool-streaming"> Strea… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …ode execution versions alongside these web tool versions. </Note> ## Streaming server-tool events Server-tool events stream as part of the normal server-sent events (SSE) flow. A `server_tool_use` b… tool-reference Claude Developer Platform · in the page agents-and-tools/tool-use/tool-reference …tool-use/programmatic-tool-calling)). * The legacy `fine-grained-tool-streaming-2025-05-14` beta header. When you stream, each member's `input` arrives as one complete `input_json_delta`. * A `tool_ch… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …ake over message history when, from inside an `each_message` or `each_streaming` block, you reassign `runner.params[:messages]` or call `feed_messages`. The following pattern calls `feed_messages` bet… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …I returns a 400. Put the cache breakpoint on a non-deferred tool. ## Streaming With streaming enabled, you'll receive tool search events as part of the stream: ```sse event: content_block_start dat… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …/docs/en/agents-and-tools/tool-use/tool-use-with-prompt-caching). ## Streaming With streaming enabled, fetch events are part of the stream with a pause during content retrieval: ```sse Output event… web-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-search-tool …/docs/en/agents-and-tools/tool-use/tool-use-with-prompt-caching). ## Streaming With streaming enabled, you'll receive search events as part of the stream. There will be a pause while the search runs… Beta Claude Developer Platform · in the page api/beta …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array of B… Messages Claude Developer Platform · in the page api/beta/messages …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array of B… Batches Claude Developer Platform · in the page api/beta/messages/batches …crementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …crementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …The block is treated like a server-tool content block for streaming: it arrives via the standard `content_block_start` / `content_block_stop` pair and carries no de… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …important aspects of the tool input JSON schema. - `eager_input_streaming: optional boolean or null` Enable eager input streaming for this tool. When true, tool input parameters will be s… Create a Message Claude Developer Platform · in the page api/beta/messages/create …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array of B… Events Claude Developer Platform · in the page api/beta/sessions/events …etaManagedAgentsDeltaType` When set, this connection also receives streaming deltas (`event_start`, `event_delta`) while an event is being produced, before the event itself arrives. Deltas are best… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …etaManagedAgentsDeltaType` When set, this connection also receives streaming deltas (`event_start`, `event_delta`) while an event is being produced, before the event itself arrives. Deltas are best… Threads Claude Developer Platform · in the page api/beta/sessions/threads …etaManagedAgentsDeltaType` When set, this connection also receives streaming deltas (`event_start`, `event_delta`) while an event is being produced, before the event itself arrives. Deltas are best… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …etaManagedAgentsDeltaType` When set, this connection also receives streaming deltas (`event_start`, `event_delta`) while an event is being produced, before the event itself arrives. Deltas are best… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …etaManagedAgentsDeltaType` When set, this connection also receives streaming deltas (`event_start`, `event_delta`) while an event is being produced, before the event itself arrives. Deltas are best… Completions Claude Developer Platform · in the page api/completions …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `temperature: optional number` **De… Create a Text Completion Claude Developer Platform · in the page api/completions/create …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `temperature: optional number` **De… errors Claude Developer Platform · in the page api/errors …t_error`: The request timed out while processing. Consider using the [streaming Messages API](https://platform.claude.com/docs/en/build-with-claude/streaming) for long-running requests. See [Long requ… Messages Claude Developer Platform · in the page api/messages …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array of T… Batches Claude Developer Platform · in the page api/messages/batches …crementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …crementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array… Retrieve Message Batch results Claude Developer Platform · in the page api/messages/batches/results …uent request to let the model continue. * `"refusal"`: when streaming classifiers intervene to handle potential policy violations * `"model_context_window_exceeded"`: we exceeded t… Count tokens in a Message Claude Developer Platform · in the page api/messages/count_tokens …important aspects of the tool input JSON schema. - `eager_input_streaming: optional boolean or null` Enable eager input streaming for this tool. When true, tool input parameters will be s… Create a Message Claude Developer Platform · in the page api/messages/create …o incrementally stream the response using server-sent events. See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details. - `system: optional string or array of T… overview Claude Developer Platform · in the page api/overview …est and response handling * Built-in retry logic and error handling * Streaming support * Request timeouts and connection management For a list of client SDKs, see [Client SDKs](https://platform.clau… versioning Claude Developer Platform · in the page api/versioning …ror types * Add new variants to enum-like output values (for example, streaming event types) Generally, if you are using the API as documented in this reference, Anthropic will not break your usage.… Message Batches API Claude Developer Platform · in the page build-with-claude/batch-processing …om anthropic.types.message_create_params import MessageCreateParamsNonStreaming from anthropic.types.messages.batch_create_params import Request client = anthropic.Anthropic() message_batch =… cache-diagnostics Claude Developer Platform · in the page build-with-claude/cache-diagnostics …}} puts "cache_miss_reason: #{type}" end ``` </CodeGroup> ## Streaming In streaming responses, `diagnostics` appears on the `message_start` event. <CodeGroup> ```bash cURL # Turn 2: str… citations Claude Developer Platform · in the page build-with-claude/citations …"end_block_index": 1 } ] } ] } ``` ### Streaming support For streaming responses, citations arrive as a `citations_delta` delta type inside `content_block_delta` events… claude-in-amazon-bedrock Claude Developer Platform · in the page build-with-claude/claude-in-amazon-bedrock …the `InvokeModel`-based integration, this endpoint uses standard SSE streaming and the same request body shape as Anthropic's first-party API. The SDK resolves credentials and region using the stand… claude-on-amazon-bedrock-legacy Claude Developer Platform · in the page build-with-claude/claude-on-amazon-bedrock-legacy …ck), which uses the Messages API at `/anthropic/v1/messages` with SSE streaming. For an Anthropic-operated alternative with AWS Marketplace billing and typically same-day feature access, see [Claude P…