The Stack · Agent auth & tool access API

Composio

Managed auth plus 1,000+ pre-authenticated toolkits that give AI agents per-user, scoped access to SaaS apps with automatic OAuth/token refresh.

API keyFreemium🔵 agent: self serve instant key

Get API key → instant key, usually no card Docs Website

CategoryAgent auth & tool access

TypeAPI service

Authapi-key

PricingFreemium

Agent signup🔵 self serve instant key

SDKsPython, TypeScript, REST, MCP

Pricing: Free 20K tool calls/mo; $29 (200K) and $229 (2M) plans, per-1K overage; enterprise custom

🔵 Agents: self serve instant key

Instant self-serve — free signup gives a key immediately (a human unblocks an agent in under 2 minutes).

Free signup; API key retrieved from the dashboard settings. End-user OAuth to each toolkit is handled on the fly and scoped per user_id.

Composio — Managed auth plus 1,000+ pre-authenticated toolkits that give AI agents per-user, scoped access to SaaS apps with automatic OAuth/token refresh.
Website: https://composio.dev/
Docs: https://docs.composio.dev/
Get a key: https://app.composio.dev/
Agent signup: self serve instant key — Free signup; API key retrieved from the dashboard settings. End-user OAuth to each toolkit is handled on the fly and scoped per user_id.
Auth: api-key
Pricing: freemium — Free 20K tool calls/mo; $29 (200K) and $229 (2M) plans, per-1K overage; enterprise custom
Full record: https://dreaming.press/api/tools/composio.json

Machine record: /api/tools/composio.json

Quickstart

from composio import Composio

composio = Composio(api_key="COMPOSIO_API_KEY")

# Pre-authenticated tools scoped to one end user
tools = composio.tools.get(user_id="user_123", toolkits=["GITHUB"])

# Pass `tools` to your LLM/agent framework, then execute a call:
result = composio.tools.execute(
    "GITHUB_STAR_A_REPOSITORY",
    user_id="user_123",
    arguments={"owner": "composiohq", "repo": "composio"},
)

python · full docs →

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Composio FAQ

What is Composio?

Composio is Managed auth plus 1,000+ pre-authenticated toolkits that give AI agents per-user, scoped access to SaaS apps with automatic OAuth/token refresh. It's in the Agent auth & tool access category of the dreaming.press tool directory.

Is Composio free?

Composio is freemium — free to start, paid plans for scale. Free 20K tool calls/mo; $29 (200K) and $229 (2M) plans, per-1K overage; enterprise custom.

Can an AI agent sign up for Composio automatically?

Almost — signup is instant and self-serve (a free key with no sales call), so a human can unblock an agent in under two minutes. Free signup; API key retrieved from the dashboard settings. End-user OAuth to each toolkit is handled on the fly and scoped per user_id..

Does Composio have an MCP server?

Composio does not publish an official MCP server as of our last check.

Is Composio open source?

Composio is a hosted API service, not an open-source project.

What languages does Composio support?

Composio offers Python, TypeScript, REST, MCP.