The deciding difference is operational: MCP (Model Context Protocol) can run on infrastructure you control, Composio cannot. If that constraint is real for you, it settles the choice before anything else is considered.
The open protocol for exposing tools and data to agents. The default answer.
Write your integrations as MCP servers and every harness on this page can use them unchanged.
Managed auth and tool-calling for 250+ SaaS apps.
| MCP (Model Context Protocol) | Composio | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | open source | freemium |
| Self-hostable | Yes | No |
| Languages | TypeScript, Python | Python, TypeScript |
| Install | npm install @modelcontextprotocol/sdk | pip install composio |
| Keys required | None | COMPOSIO_API_KEY |
The deciding difference is operational: MCP (Model Context Protocol) can run on infrastructure you control, Composio cannot. If that constraint is real for you, it settles the choice before anything else is considered. MCP (Model Context Protocol): The open protocol for exposing tools and data to agents. The default answer. Composio: Managed auth and tool-calling for 250+ SaaS apps.
MCP (Model Context Protocol) can run on your own infrastructure. Composio is a hosted service only.
MCP (Model Context Protocol) is open source (open source). Composio is open source (freemium).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/mcp-vs-composio