989 pages for note.

advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …aHeader: advisor-tool-2026-03-01 zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… browser-use-sdk Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-sdk …h the Chrome DevTools Protocol (CDP), and it isn’t production code. <Note> The browser toolset class is in beta and available in the [Python SDK](https://github.com/anthropics/anthropic-sdk-python/… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… build-a-tool-using-agent Claude Developer Platform · in the page agents-and-tools/tool-use/build-a-tool-using-agent …de handles realistic input shapes rather than a single flat string. <Note> Every ring runs standalone. Copy any ring into a fresh file and it will run without the code from earlier rings. </Note>… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …reMetadata: status: stable zdr: eligibility: not-eligible note: Container data retained up to 30 days. supportedModels: - claude-fable-5-2 - claude-mythos-5-2 - claude-fable-… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …5-11-24, computer-use-2025-01-24 zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… define-tools Claude Developer Platform · in the page agents-and-tools/tool-use/define-tools …d be specified as is, while lists and objects should use JSON format. Note that spaces for string values are not stripped. The output is not expected to be valid XML and is parsed with regular express… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… handle-tool-calls Claude Developer Platform · in the page agents-and-tools/tool-use/handle-tool-calls …platform.claude.com/docs/en/agents-and-tools/tool-use/tool-runner). <Note> **Simpler with Tool Runner:** The manual tool handling described on this page is automatically managed by [Tool Runner](ht… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… overview Claude Developer Platform · in the page agents-and-tools/tool-use/overview …Messages API without a separate MCP client. </Card> </CardGroup> <Note> [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) provides a built-in toolset that Clau… parallel-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/parallel-tool-use …text to return for the calls you skip. ## Test parallel tool calls <Note> **Use the Tool Runner for most applications:** the SDK [Tool Runner](https://platform.claude.com/docs/en/agents-and-tools/… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …reMetadata: status: stable zdr: eligibility: not-eligible note: Built on code execution containers; data retained up to 30 days. supportedModels: - claude-fable-5-2 - claude-myth… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …block in the same response are complete and need nothing from you. <Note> With [programmatic tool calling](https://platform.claude.com/docs/en/agents-and-tools/tool-use/programmatic-tool-calling),… strict-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/strict-tool-use …atureMetadata: status: stable zdr: eligibility: qualified note: "Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-rete… text-editor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/text-editor-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… tool-reference Claude Developer Platform · in the page agents-and-tools/tool-use/tool-reference …/platform.claude.com/docs/en/models/overview#using-the-models-api). <Note> The tool search `type` values also accept undated aliases: `tool_search_tool_regex` and `tool_search_tool_bm25`. These res… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …* Manages conversation state * Provides type safety and validation <Note> The tool runner is in beta and available in the [Python SDK](https://github.com/anthropics/anthropic-sdk-python/blob/main/… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… tool-use-with-prompt-caching Claude Developer Platform · in the page agents-and-tools/tool-use/tool-use-with-prompt-caching …| <Note> If you need to vary `tool_choice` mid-conversation, consider placing cache breakpoints before the variation point. </Note>… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… web-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-search-tool …eatureMetadata: status: stable zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-reten… Beta Claude Developer Platform · in the page api/beta …a Organization Not Enrolled In Beta Error Details - `BetaOrganizationNotEnrolledInBetaErrorDetails object` The beta that the endpoint requires is not enabled for the organization. The message name… beta-headers Claude Developer Platform · in the page api/beta-headers …``` ## Getting help For updates to beta features, see the [release notes](https://platform.claude.com/docs/en/release-notes/overview). For help with production issues, contact [support](https://sup… Environments Claude Developer Platform · in the page api/beta/environments …ork Item **GET** `/v1/environments/{environment_id}/work/{work_id}` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Work Claude Developer Platform · in the page api/beta/environments/work …ork Item **GET** `/v1/environments/{environment_id}/work/{work_id}` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Acknowledge Work Claude Developer Platform · in the page api/beta/environments/work/ack …ork **POST** `/v1/environments/{environment_id}/work/{work_id}/ack` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Record Heartbeat Claude Developer Platform · in the page api/beta/environments/work/heartbeat …*POST** `/v1/environments/{environment_id}/work/{work_id}/heartbeat` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… List Work Items Claude Developer Platform · in the page api/beta/environments/work/list …# List Work Items **GET** `/v1/environments/{environment_id}/work` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Poll for Work Claude Developer Platform · in the page api/beta/environments/work/poll …Poll for Work **GET** `/v1/environments/{environment_id}/work/poll` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Get Work Item Claude Developer Platform · in the page api/beta/environments/work/retrieve …ork Item **GET** `/v1/environments/{environment_id}/work/{work_id}` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Stop Work Claude Developer Platform · in the page api/beta/environments/work/stop …rk **POST** `/v1/environments/{environment_id}/work/{work_id}/stop` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Update Work Item Claude Developer Platform · in the page api/beta/environments/work/update …rk Item **POST** `/v1/environments/{environment_id}/work/{work_id}` Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating… Memory Stores Claude Developer Platform · in the page api/beta/memory_stores …`path: string` The path of the new memory, such as `/projects/foo/notes.md`. Paths are case-sensitive. A path starts with `/` and has 1 to 20 segments. A segment can't be empty and can't be `.`… Memories Claude Developer Platform · in the page api/beta/memory_stores/memories …`path: string` The path of the new memory, such as `/projects/foo/notes.md`. Paths are case-sensitive. A path starts with `/` and has 1 to 20 segments. A segment can't be empty and can't be `.`… Create a Memory Claude Developer Platform · in the page api/beta/memory_stores/memories/create …`path: string` The path of the new memory, such as `/projects/foo/notes.md`. Paths are case-sensitive. A path starts with `/` and has 1 to 20 segments. A segment can't be empty and can't be `.`… List Memories Claude Developer Platform · in the page api/beta/memory_stores/memories/list …Return only memories whose path starts with this prefix, such as `/notes/`. This value appears in request URLs. Do not include secrets or personally identifiable information. Omit it to list the… Retrieve a Memory Claude Developer Platform · in the page api/beta/memory_stores/memories/retrieve …Hierarchical path of the memory within the store, e.g. `/projects/foo/notes.md`. Always starts with `/`. Paths are case-sensitive and unique within a store. Maximum 1,024 bytes. - `updated_at: stri… Update a Memory Claude Developer Platform · in the page api/beta/memory_stores/memories/update Messages Claude Developer Platform · in the page api/beta/messages …mber` 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… Batches Claude Developer Platform · in the page api/beta/messages/batches …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… Cancel a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/cancel …equests 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 Batch… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …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… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …acted_result block carries stop_reason='max_tokens', and a truncation note is appended to the advice text the worker model sees (inside the encrypted blob in redacted mode). When set, the API also pas… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …cs/en/build-with-claude/working-with-messages?sdk_languages=http). Note that if you want to include a [system prompt](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude… Create a Message Claude Developer Platform · in the page api/beta/messages/create …mber` 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… Analytics Claude Developer Platform · in the page api/beta/organization/analytics …ool call, counted in `edit_tool_count` and `file_edit_count`. - `notebook_edit_tool_count: number or null` Same measure as `cowork_metrics.notebook_edit_tool_count`, for activity recorded… Users Claude Developer Platform · in the page api/beta/organization/analytics/users …ccepted/rejected counts for a single Claude Code tool type. - `notebook_edit_tool: BetaAnalyticsToolActionCounts` Accepted/rejected counts for a single Claude Code tool type. -… List User Activity Claude Developer Platform · in the page api/beta/organization/analytics/users/list …ccepted/rejected counts for a single Claude Code tool type. - `notebook_edit_tool: BetaAnalyticsToolActionCounts` Accepted/rejected counts for a single Claude Code tool type. -…