0bridge and Composio
Composio is a platform for developers who build AI agents, with managed sign-in and a large catalog of tool integrations. 0bridge is for one person who uses several AI tools and wants them to share the same services and context. As of 2026-10-01.
Last updated
The short version#
Use Composio if you are building an agent or product and need managed authentication for your own users across many apps. Use 0bridge if you are the user: you want your own Linear, Slack and Notion available in Claude, ChatGPT, Codex and Cursor at once, and your sessions, memory and secrets to follow you.
Side by side#
| 0bridge | Composio | |
|---|---|---|
| Built for | A person with several AI tools | Developers building agents and apps |
| Whose accounts | Yours | Your end users' |
| Main interface | One MCP endpoint, a CLI, a dashboard | SDKs and APIs, with MCP as one way in |
| Session history and resume | Yes | Not its job |
| Secrets for your own commands | Vault, used by name with 0b exec | Not its job |
| Control of your coding agents | Yes, off by default | Not its job |
| Cost | Free for one person | Check their pricing |
Composio's column is how we understand it on the date above; their documentation is the source of truth.
When not to use 0bridge#
- You are building a product that needs sign-in and tool calls for many end users. 0bridge is one person's account, not a platform for your customers.
- You need a catalog of integrations you can call from your own code with an SDK.
- You need a service level agreement. 0bridge is a small service run by one person.