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The Tool-Calling & Auth Layer for AI Agents

Give your agents secure, managed access to 1,000+ apps — auth, tool calls, and sandboxed execution handled for you.

Freemium — free developer tier; usage-based and enterprise plansOpen source#Agentic-AI#Tool-Calling#Agent-Infrastructure#Integrations#Developer-Tools#MCP#Auth

Composio is the integration and authentication layer that lets an AI agent actually do things in other systems. Instead of writing and maintaining a bespoke connector (plus its OAuth dance) for every app an agent needs, builders point Composio at the target apps and get back ready-to-use, function-callable tools with secure delegated auth, just-in-time tool definitions, sandboxed execution, and parallel calls across 1,000+ integrations — Gmail, Notion, Slack, GitHub, Linear, CRMs, and the rest.

It slots in beneath the agent frameworks (LangChain, CrewAI, the OpenAI/Anthropic SDKs) and speaks MCP, so it complements rather than replaces tools like N8n or Openclaw: those orchestrate workflows; Composio supplies the authenticated reach into third-party apps. For Dojo members building agents, it's the most direct answer to the recurring "how do I wire my agent into Affinity / Notion / Drive without it being a multi-day auth project" question — the plumbing is the product.

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