composio.dev
Composio is an integration platform for AI agents that provides access to many third-party apps, user-scoped authentication handling, tool execution, sessions, triggers, and sandboxed workflows. It lets developers connect agents to external services through managed auth and routing infrastructure.
Composio exposes a REST API at `https://backend.composio.dev/api/v3.1`, managed MCP server endpoints under `https://backend.composio.dev/v3/mcp/...`, and the `composio` CLI; the API uses project or org API keys, MCP uses a Composio API key in `x-api-key`, and the CLI authenticates via `composio login`.
- Composio MCP serverdiscovered
- Composio REST APIdiscovered
- Composio CLIdiscovered
In the Composio dashboard settings, create or copy your project API key. The quickstart and MCP docs show using this value as COMPOSIO_API_KEY, and the API reference says project requests authenticate with the x-api-key header.
$ composio loginAcquired by the CLI — running composio login opens the auth flow and stores the credential.
conventions · 1/7 published
- integrations.json——
- llms.txt✓https://composio.dev/llms.txt
- API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing