The universal adapter for AI agents

Composio solves the hardest part of building AI agents: connecting them to real-world apps. Instead of building OAuth flows, managing API keys, and handling rate limits for every service, you plug in Composio's SDK and your agent can talk to GitHub, Slack, Salesforce, Jira, and 250+ other apps immediately.

Who it's for: AI developers and teams building agents that need to interact with real-world SaaS tools. Works with LangChain, CrewAI, AutoGen, and any function-calling LLM.

Key features

Auth Managed authentication

OAuth, API keys, bearer tokens — Composio handles it all. Users authorize once, and your agent gets scoped access. No more building custom auth flows for every integration.

Tools 250+ pre-built actions

Each integration comes with pre-built tool definitions that LLMs understand. Create a GitHub issue, send a Slack message, update a Salesforce lead — all described in natural language.

Framework Works with any framework

First-class support for LangChain, CrewAI, AutoGen, and OpenAI function calling. Or use the raw REST API. Your agent framework doesn't matter — Composio plugs in anywhere.

Execute Reliable execution

Rate limiting, retries, and error handling are built in. If Slack's API is down, Composio retries with exponential backoff. Your agent doesn't need to handle infrastructure failures.

The honest take

✓ What works

Saves weeks of integration work — auth alone is worth the adoption
Tool descriptions are LLM-optimized out of the box
Free tier is generous for prototyping and small projects
Works with every major agent framework
Active community and fast-adding new integrations

✗ What doesn't

Some integrations are shallow — only basic CRUD, not full API coverage
Debugging failed executions can be opaque
Team plan ($49/mo) is needed for production use cases
Documentation could be better organized for complex use cases

Verdict

If you're building AI agents that need to interact with real-world apps, Composio is the fastest path from prototype to production. The managed auth alone saves weeks. Start free, upgrade when your agent handles real user data.

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