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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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20 pages for --header.

Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.

Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …> ```bash cURL curl https://api.anthropic.com/v1/messages \ --header "x-api-key: $ANTHROPIC_API_KEY" \ --header "anthropic-version: 2023-06-01" \ --header "content-type: applicat… Message Batches API Claude Developer Platform · in the page build-with-claude/batch-processing …sh cURL curl https://api.anthropic.com/v1/messages/batches \ --header "x-api-key: $ANTHROPIC_API_KEY" \ --header "anthropic-version: 2023-06-01" \ --header "content-type: applic… context-editing Claude Developer Platform · in the page build-with-claude/context-editing …> ```bash cURL curl https://api.anthropic.com/v1/messages \ --header "x-api-key: $ANTHROPIC_API_KEY" \ --header "anthropic-version: 2023-06-01" \ --header "content-type: applicat… access-transparency Claude Developer Platform · in the page manage-claude/access-transparency …ctivity_types[]=anthropic_access" \ --data-urlencode "limit=50" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" ``` Pagination, date-range filtering (`created_at.gte` / `.lt`), and the r… analytics-api Claude Developer Platform · in the page manage-claude/analytics-api …rganizations/usage_report/claude_code?starting_at=2025-09-08" \ --header "anthropic-version: 2023-06-01" \ --header "x-api-key: $ANTHROPIC_ADMIN_KEY" ``` </Step> </Steps> For the av… Fetch the first page (newest activities first) and capture its trailing cursor. Claude Developer Platform · in the page manage-claude/compliance-activity-feed …\ "https://api.anthropic.com/v1/compliance/activities?limit=1" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" ``` ```json Response { "data": [ { "id": "activity_01XyDMpzjS8… compliance-api Claude Developer Platform · in the page manage-claude/compliance-api …\ "https://api.anthropic.com/v1/compliance/activities?limit=1" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" ``` A successful response returns a JSON object containing `data` (an arra… WARNING: This operation PERMANENTLY deletes the chat, all of its messages, Claude Developer Platform · in the page manage-claude/compliance-content-data …y -sS -G \ "https://api.anthropic.com/v1/compliance/apps/chats" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" \ --data-urlencode "order_by=updated_at" \ --data-urlencode "updated_at… compliance-integration-patterns Claude Developer Platform · in the page manage-claude/compliance-integration-patterns …y -sS -G \ "https://api.anthropic.com/v1/compliance/activities" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" \ --data-urlencode "created_at.gte=2026-04-20T07:00:00Z" \ --data-urlen… compliance-sessions Claude Developer Platform · in the page manage-claude/compliance-sessions …\ "https://api.anthropic.com/v1/compliance/apps/sessions/local" \ --header "x-api-key: $ANTHROPIC_COMPLIANCE_ACCESS_KEY" \ --data-urlencode "created_at.gte=2026-07-01T00:00:00Z" \ --data-urlen… spend-limits-api Claude Developer Platform · in the page manage-claude/spend-limits-api …i.anthropic.com/v1/organizations/spend_limits/effective?limit=20" \ --header "x-api-key: $ANTHROPIC_ADMIN_KEY" ``` ## Key concepts ### The spend limit hierarchy An **effective spend limit** appli… Connect Claude Code to tools via MCP Claude Code CLI · in the page mcp …e mcp add --transport http secure-api https://api.example.com/mcp \ --header "Authorization: Bearer your-token" ``` When configuring MCP servers via JSON in `.mcp.json`, `~/.claude.json`, or `claud… Connect to MCP servers Claude Code CLI · in the page mcp-quickstart …ver is reachable but needs a browser sign-in, or a token passed with `--header`. See [Connect a server that requires sign-in](#connect-a-server-that-requires-sign-in) | | `✘ Failed to connect`… Use Claude Code in VS Code Claude Code CLI · in the page vs-code …cp add --transport http github https://api.githubcopilot.com/mcp/ \ --header "Authorization: Bearer YOUR_GITHUB_PAT" ``` Replace `YOUR_GITHUB_PAT` with your personal access token. The `claude mcp a… CLI client Model Context Protocol · in the page docs/2026-07-28/tools/inspector/cli …nnection, resolved exactly as the TUI and web client resolve them. A `--header` flag overrides the file's headers for that run while leaving its timeouts and OAuth in place. Later examples abbreviate… Configuration and flags Model Context Protocol · in the page docs/2026-07-28/tools/inspector/configuration …| | `--header "Name: Value"` | HTTP headers for an HTTP/SSE server. Repeatable. | Requires an ad-hoc HTTP/SSE server on the web cl… Recipes Model Context Protocol · in the page docs/2026-07-28/tools/inspector/recipes …spector --server-url https://api.example.com/mcp --transport http \ --header "X-Tenant: acme" ``` `--transport` accepts `http` (Streamable HTTP) and `sse`. If the server is protected, see [Authoriz… CLI client Model Context Protocol · in the page docs/draft/tools/inspector/cli …nnection, resolved exactly as the TUI and web client resolve them. A `--header` flag overrides the file's headers for that run while leaving its timeouts and OAuth in place. Later examples abbreviate… Configuration and flags Model Context Protocol · in the page docs/draft/tools/inspector/configuration …| | `--header "Name: Value"` | HTTP headers for an HTTP/SSE server. Repeatable. | Requires an ad-hoc HTTP/SSE server on the web cl… Recipes Model Context Protocol · in the page docs/draft/tools/inspector/recipes …spector --server-url https://api.example.com/mcp --transport http \ --header "X-Tenant: acme" ``` `--transport` accepts `http` (Streamable HTTP) and `sse`. If the server is protected, see [Authoriz…