Composio

Platform

Tools and managed auth that let AI agents act in 1,000+ apps

Price: Free tier, then paid
Access: API key

About

Hosted platform that gives agents ready-made tools for over 1,000 apps and handles each user's OAuth connections and credentials. Works with the OpenAI, Claude and Vercel agent SDKs or through an MCP URL. The free plan includes 100,000 tool calls a month.

What you can do with it

Let an agent send email, open issues or update CRM records for each of your users
Handle per-user OAuth for Gmail, GitHub, Slack and 1,000+ other apps
Expose a user's connected apps to any MCP client through one session URL

Get started

Create a Composio API key
Create a session for each of your users
Pass the session's tools or MCP URL to your agent

Example

# pip install composio; the SDK reads COMPOSIO_API_KEY from the environment
from composio import Composio

composio = Composio()
session = composio.sessions.create(user_id="user_123", mcp=True)

# Point any MCP client at this URL, sending session.mcp.headers
print(session.mcp.url)

Details

Hosting: Hosted service
Available in: Worldwide
Official SDKs: Python, JavaScript/TypeScript
MCP server: Remote