425 pages for limits.

extended-thinking Claude Developer Platform · in the page build-with-claude/extended-thinking …ong-running requests that can hit system timeouts and open-connection limits. To track what a budget actually costs you, monitor the `usage.output_tokens_details.thinking_tokens` field in the respons… fast-mode Claude Developer Platform · in the page build-with-claude/fast-mode …de.com/docs/en/about-claude/pricing#fast-mode-pricing) page. ## Rate limits Fast mode has a dedicated rate limit that is separate from standard Opus rate limits. When your fast mode rate limit is ex… files Claude Developer Platform · in the page build-with-claude/files …at the credential contains and how to verify it. ## File storage and limits ### Storage limits * **Maximum file size:** 500 MB per file * **Total storage:** 1 TB per organization ### File lifecycl… handling-stop-reasons Claude Developer Platform · in the page build-with-claude/handling-stop-reasons …d responses gracefully When a response is truncated because of token limits or the context window, append a notice so the reader knows the output is incomplete. To continue generating from where the… mid-conversation-system-messages Claude Developer Platform · in the page build-with-claude/mid-conversation-system-messages …error_code` set to `available_tools_limit_exceeded` when any of these limits is exceeded: * More than 10,000 deferred tools are available after any message. * More than 10,000 tools defined after the… overview Claude Developer Platform · in the page build-with-claude/overview …ble strategies. Supports clearing tool results when approaching token limits and managing thinking blocks in extended thinking conversations. | ZDR eligible | <PlatformAvailability claudeApiBeta claud… pdf-support Claude Developer Platform · in the page build-with-claude/pdf-support …atform](https://platform.claude.com/docs/en/api/overview#request-size-limits)) | | Maximum pages per request | 600 (100 when the request's context window is under 1M tokens)… preserved-thinking Claude Developer Platform · in the page build-with-claude/preserved-thinking …mpaction for managing long conversations that approach context window limits. </Card> <Card title="Prompt caching" icon="database" href="https://platform.claude.com/docs/en/build-with-claude/prom… Request 2 caches its request content (not the response) Claude Developer Platform · in the page build-with-claude/prompt-caching …050 tokens This is important for understanding both costs and rate limits, as `input_tokens` will typically be much smaller than your total input when using caching effectively. </Note> ### Cachin… claude-prompting-best-practices Claude Developer Platform · in the page build-with-claude/prompt-engineering/claude-prompting-best-practices …y by understanding how much space it has to work. **Managing context limits:** If you are using Claude in an agent harness that compacts context or allows saving context to external files (like in C… prompting-claude-fable-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-fable-5 …o not stop, summarize, or suggest a new session on account of context limits. Continue the work. ``` ## Give the reason, not only the request Claude Fable 5 tends to perform better when it understan… prompting-claude-sonnet-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-sonnet-5 …roduces approximately 30% more tokens for the same text, `max_tokens` limits tuned for Claude Sonnet 4.6 may truncate equivalent output. The exact increase depends on the content and workload shape. <… refusals-and-fallback Claude Developer Platform · in the page build-with-claude/refusals-and-fallback …counts appear in `usage`. The request still counts against your rate limits. **Mid-stream refusals:** A mid-stream refusal bills the input tokens and the output already streamed at normal rates. **… search-results Claude Developer Platform · in the page build-with-claude/search-results …Authorization header. Keys can be generated from the dashboard. Rate limits: 1000 requests per hour for standard tier, 10000 for premium." } ], "citations"… skills-guide Claude Developer Platform · in the page build-with-claude/skills-guide …: "code_execution" }] ) puts response ``` </CodeGroup> *** ## Limits and constraints ### Request limits * **Maximum Skills per request:** 20 * **Maximum Skill upload size:** 30 MB (all file… structured-outputs Claude Developer Platform · in the page build-with-claude/structured-outputs …num values that differ only in capitalization. ### Schema complexity limits Structured outputs work by compiling your JSON schemas into a grammar that constrains Claude's output. More complex schema… thinking Claude Developer Platform · in the page build-with-claude/thinking …l use](https://platform.claude.com/docs/en/build-with-claude/thinking#limits-and-feature-compatibility)). 2. **Preserving thinking blocks:** when you return tool results, you must pass the thinking bl… token-counting Claude Developer Platform · in the page build-with-claude/token-counting …message before you send it to Claude. Use token counts to manage rate limits and costs, make model routing decisions, and fit prompts to a target length. featureMetadata: status: ga zdr: eligi… vision Claude Developer Platform · in the page build-with-claude/vision …eraction. --- This guide describes how to send images to Claude, the limits and costs that apply, and where to find guidance for [coordinate-based workflows](https://platform.claude.com/docs/en/build… vision-coordinates Claude Developer Platform · in the page build-with-claude/vision-coordinates …mage. For sending images, supported formats, and per-model resolution limits, see [Vision](https://platform.claude.com/docs/en/build-with-claude/vision). <Note> **Claude works best with absolute pi… apple-foundation-models Claude Developer Platform · in the page cli-sdks-libraries/libraries/apple-foundation-models …let error as LanguageModelError { // Framework-shaped errors (rate limits, guardrails, context length, decoding). } catch { // Transport errors. } ``` A common pattern is to catch `.rateLimited`… openai-sdk Claude Developer Platform · in the page cli-sdks-libraries/libraries/openai-sdk …pe: "enabled", budget_tokens: 2000}}} ) ``` </CodeGroup> ## Rate limits Rate limits follow Anthropic's [standard limits](https://platform.claude.com/docs/en/api/rate-limits) for the `/v1/message… For Amazon Bedrock support Claude Developer Platform · in the page cli-sdks-libraries/sdks/python …sure the SDK's default configuration (such as timeouts and connection limits) is preserved. The `http_client` argument must be an `httpx2` client. Passing a client from the separate `httpx` package ra… home Claude Developer Platform · in the page home …eyLink icon="bolt" href="https://platform.claude.com/docs/en/api/rate-limits"> Rate limits and errors </HomeJourneyLink> <HomeJourneyLink icon="calculator" href="https… admin-api Claude Developer Platform · in the page manage-claude/admin-api …et Enterprise-only endpoints: group and custom-role reads, and [spend limits](https://platform.claude.com/docs/en/manage-claude/spend-limits-api). See [User management](https://platform.claude.com/doc… admin-api-keys Claude Developer Platform · in the page manage-claude/admin-api-keys …s://platform.claude.com/docs/en/manage-claude/compliance-api), [Spend Limits API](https://platform.claude.com/docs/en/manage-claude/spend-limits-api), [Usage and Cost API](https://platform.claude.com/… analytics-api Claude Developer Platform · in the page manage-claude/analytics-api …t parsing for values that may exceed several million dollars. **Rate limits apply at the organization level**, not per key, with a default of 60 requests per minute across all endpoints in this API.… authentication Claude Developer Platform · in the page manage-claude/authentication …lf. If your organization has a maximum expiration policy, the Console limits presets and custom durations to the policy maximum, and **Never** is unavailable. Existing keys keep their current behavior… cmek-aws-kms Claude Developer Platform · in the page manage-claude/cmek-aws-kms …ceArn": "arn:aws:aws-external-anthropic:*:<account-id>:workspace/*"}` limits the grant to workspaces in your own AWS account, and a list of full workspace ARNs limits it to those workspaces. This cond… compliance-errors Claude Developer Platform · in the page manage-claude/compliance-errors …-limit response headers](https://platform.claude.com/docs/en/api/rate-limits#response-headers) so your client can throttle proactively instead of waiting for a 429: * `anthropic-ratelimit-requests-li… compliance-org-data Claude Developer Platform · in the page manage-claude/compliance-org-data …ly that organization. These calls count against the Admin API's [rate limits](https://platform.claude.com/docs/en/manage-claude/plugins-api#rate-limiting), not the Compliance API's. Creating or chang… data-residency Claude Developer Platform · in the page manage-claude/data-residency …ude/data-residency#pricing). ## Current limitations * **Shared rate limits:** Rate limits are shared across all geos. * **Inference geo:** Only `"us"` and `"global"` are available. * **Workspace geo… plugins-api Claude Developer Platform · in the page manage-claude/plugins-api …ess`, `failed_content`, `failed_transient`, `failed_auth`, or `failed_limits`. `null` until a synchronization is first attempted, which never happens for a marketplace whose source is `manual`. | | `l… First request Claude Developer Platform · in the page manage-claude/usage-cost-api …lerting * **[Rate limit](https://platform.claude.com/docs/en/api/rate-limits) optimization:** Optimize features like [prompt caching](https://platform.claude.com/docs/en/build-with-claude/prompt-cachi… user-management Claude Developer Platform · in the page manage-claude/user-management …| | [Spend limits](https://platform.claude.com/docs/en/manage-claude/spend-limits-api)… Create the app registration that represents the Claude API audience. Claude Developer Platform · in the page manage-claude/wif-providers/azure …eaks, the lever is disabling the federation rule; a tight `oid` match limits which identities can exchange a token in the first place, as described in [Scope your rule](https://platform.claude.com/doc… wif-reference Claude Developer Platform · in the page manage-claude/wif-reference …is true. The workspace (`wrkspc_...`) whose quota, billing, and rate limits apply to tokens minted under this rule. Must be a workspace in the same organization, and the target service account must b… workload-identity-federation Claude Developer Platform · in the page manage-claude/workload-identity-federation …pace memberships; the minted token then follows that workspace's rate limits and usage attribution, the same as an API key. Unlike a human user, a service account has no email, no password, and no Con… workspaces Claude Developer Platform · in the page manage-claude/workspaces …ces, you can assign members, service accounts, API keys, and resource limits to each one. Key characteristics: * **Workspace identifiers** use the `wrkspc_` prefix (for example, `wrkspc_01JwQvzr7rXL… agent-setup Claude Developer Platform · in the page managed-agents/agent-setup …types, self-hosted worker CLI flags, supported MCP server types, rate limits, and branding guidelines for Claude Managed Agents. </Card> </CardGroup> dreams Claude Developer Platform · in the page managed-agents/dreams …ons and scale up once you're satisfied with the curation quality. ## Limits | Limit | Value… files Claude Developer Platform · in the page managed-agents/files …file in the session. These copies do not count against your [storage limits](https://platform.claude.com/docs/en/build-with-claude/files). ## Multiple files Mount multiple files by adding entries t… overview Claude Developer Platform · in the page managed-agents/overview …m.claude.com/docs/en/managed-agents/reference"> Event types, rate limits, CLI flags, and other lookup tables </Card> </CardGroup> ## Core concepts Claude Managed Agents is built around four co… reference Claude Developer Platform · in the page managed-agents/reference …types, self-hosted worker CLI flags, supported MCP server types, rate limits, and branding guidelines for Claude Managed Agents. featureMetadata: topic: title: Managed Agents url: https://pl… scheduled-deployments Claude Developer Platform · in the page managed-agents/scheduled-deployments …y; the schedule attempts again at the next scheduled occurrence. Rate limits on underlying API calls within a session are handled by the session itself. If a deployment's agent has been archived, the… spawn.sh: called once per claimed work item Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes …If you need stronger isolation (a fresh filesystem, resource limits, or per-session network controls), run each session in its own sandbox. Build an image with `ant` installed and `ant beta:w… self-hosted-sandboxes-custom-tools Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-custom-tools …le in the Ruby SDK. ``` </CodeGroup> </Step> </Steps> ## Limits and behavior ### Tools are declared, not discovered at runtime The worker lists the MCP server's tools once at startup an… self-hosted-sandboxes-security Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-security …ng a separate workspace and environment for each trust boundary. This limits each key to a single user's sessions instead of a shared pool. * **Per-session credentials.** Each work item your worker cl… self-hosted-sandboxes-workers Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-workers …ion. Choose this for stronger isolation: a fresh filesystem, resource limits, or per-session network controls. The CLI and SDK workers support different combinations: | Capability… tools-web-restrictions Claude Developer Platform · in the page managed-agents/tools-web-restrictions …domain lists on an agent The following example creates an agent that limits `web_search` to two sites and blocks one host for `web_fetch`. It also sets `user_location` and `max_content_tokens`, which…