Composio is an agent tooling and authentication harness developed by ComposioHQ. It provides a managed tool execution infrastructure and command-line interface designed to connect AI coding agents—such as Claude, Codex, Cursor, Hermes, and OpenClaw—to external APIs, developer services, and SaaS applications. In day-to-day operations, developers interact with Composio via its Universal CLI, programming SDKs, or managed Model Context Protocol (MCP) gateway. The platform allows agents to execute actions and listen to triggers across external ecosystems (like Linear, GitHub, Sentry, and Slack) using natural language instructions, with Composio automatically managing OAuth handshakes, API keys, token renewals, and permissions scopes. What distinguishes Composio from standard agent harnesses is its centralized authentication management and turnkey MCP integration layer. Rather than requiring developers to manually build custom API wrappers, manage OAuth redirect endpoints, or script credential storage for each tool, Composio standardizes tool calling and provides automated type generation across hundreds of supported services. Composio provides a free developer platform tier for individuals and offers enterprise tiers featuring single sign-on (SSO), governance guardrails, and audit logging for team-wide agent deployments.
Universal CLI & SDKs — Provides a standardized interface to execute tool actions and wire external services into agent loops. - Managed Authentication Infrastructure — Handles OAuth2 flows, API keys, scopes, and automated token refreshes without custom credential plumbing. - Managed MCP Gateway — Offers a unified Model Context Protocol endpoint to connect multi-agent systems and IDEs like Cursor to external toolkits. - Ecosystem of 1,000+ Integrations — Pre-built toolkits and triggers for engineering and workplace tools including Linear, GitHub, Sentry, Datadog, and Notion. - Type Definition Generation — Generates typed interfaces for toolkits to maintain strict type safety and schema validation in agent code. - Trigger & Webhook Support — Listens to incoming platform events to trigger automated agent workflows on issue creation, alerts, or status changes.
Use cases
Use Case: Issue Tracking Integration with Linear A developer configures the Composio Linear toolkit via the CLI to let coding agents query backlog tickets, create bug reports, and append diagnostic summaries directly to issue threads without manually managing API tokens.
Use Case: Centralized MCP Tooling for IDEs and Agents An engineering team sets up Composio's MCP Gateway to expose a secured, authenticated set of company tool integrations to Cursor, Claude, and local terminal agents simultaneously through a single endpoint.
Use Case: Incident Triaging and Monitoring Workflows An autonomous agent accesses Sentry, Datadog, and PagerDuty toolkits through Composio to retrieve stack traces and incident metrics, drafting a post-mortem or opening an escalating ticket automatically upon an alert trigger.
Who it is for
Composio is built for software engineers, AI system architects, and DevOps teams developing autonomous coding agents or AI harnesses that need secure, managed access to external APIs and SaaS platforms. It is less suitable for developers who only need local file-system code editing without any third-party service or MCP integrations.
Install guide
Installation Install the Composio CLI using standard package managers: bash npm install -g composio-core # or pip install composio-core
First Run Authenticate the CLI and connect external toolkits to your account: bash # Log in to your Composio account composio login # Connect a toolkit (e.g., Linear) composio add linear
Example Session Inspect available tools and execute actions through the CLI: bash # List available tools and triggers for an integration composio tools linear # Run a natural language action using the connected tool composio run linear "Create a high-priority bug for issue lin-101 and assign it to mobile team"
Amazon Q Developer CLI — Amazon Q Developer CLI is an open-source command-line coding assistant developed by Amazon Web Services (AWS). Built primarily in Rust,…
OpenHands — OpenHands (formerly OpenDevin) is an open-source autonomous AI software development agent and orchestration platform. It provides an extensible runtime environment…
Kiro — Kiro is an agentic engineering platform and CLI coding agent built and operated by AWS. It extends beyond standard code-completion…
Amp — Amp (developed by AmpCode) is an autonomous coding agent platform and remote development harness designed to execute software engineering tasks…
SWE-agent — SWE-agent is an open-source autonomous software engineering agent harness built and maintained by researchers from Princeton University and Stanford University.…
OpenCode — OpenCode is an open-source AI coding agent developed by Anomaly that operates across terminal environments, desktop applications, and IDE extensions.…