https://github.com/tadata-org/fastapi_mcp
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
https://github.com/tadata-org/fastapi_mcp
ai authentication authorization claude cursor fastapi llm mcp mcp-server mcp-servers modelcontextprotocol openapi windsurf
Last synced: about 2 months ago
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Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
- Host: GitHub
- URL: https://github.com/tadata-org/fastapi_mcp
- Owner: tadata-org
- License: mit
- Created: 2025-03-08T11:15:43.000Z (4 months ago)
- Default Branch: main
- Last Pushed: 2025-04-28T16:01:55.000Z (2 months ago)
- Last Synced: 2025-04-29T10:12:27.563Z (2 months ago)
- Topics: ai, authentication, authorization, claude, cursor, fastapi, llm, mcp, mcp-server, mcp-servers, modelcontextprotocol, openapi, windsurf
- Language: Python
- Homepage: https://fastapi-mcp.tadata.com/
- Size: 379 KB
- Stars: 4,093
- Watchers: 33
- Forks: 331
- Open Issues: 41
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
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README
FastAPI-MCP
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
[](https://pypi.org/project/fastapi-mcp/)
[](https://pypi.org/project/fastapi-mcp/)
[](#)
[](https://github.com/tadata-org/fastapi_mcp/actions/workflows/ci.yml)
[](https://codecov.io/gh/tadata-org/fastapi_mcp)
## Features
- **Authentication** built in, using your existing FastAPI dependencies!
- **FastAPI-native:** Not just another OpenAPI -> MCP converter
- **Zero/Minimal configuration** required - just point it at your FastAPI app and it works
- **Preserving schemas** of your request models and response models
- **Preserve documentation** of all your endpoints, just as it is in Swagger
- **Flexible deployment** - Mount your MCP server to the same app, or deploy separately
- **ASGI transport** - Uses FastAPI's ASGI interface directly for efficient communication
## Installation
We recommend using [uv](https://docs.astral.sh/uv/), a fast Python package installer:
```bash
uv add fastapi-mcp
```
Alternatively, you can install with pip:
```bash
pip install fastapi-mcp
```
## Basic Usage
The simplest way to use FastAPI-MCP is to add an MCP server directly to your FastAPI application:
```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(app)
# Mount the MCP server directly to your FastAPI app
mcp.mount()
```
That's it! Your auto-generated MCP server is now available at `https://app.base.url/mcp`.
## Documentation, Examples and Advanced Usage
FastAPI-MCP provides [comprehensive documentation](https://fastapi-mcp.tadata.com/). Additionaly, check out the [examples directory](examples) for code samples demonstrating these features in action.
## FastAPI-first Approach
FastAPI-MCP is designed as a native extension of FastAPI, not just a converter that generates MCP tools from your API. This approach offers several key advantages:
- **Native dependencies**: Secure your MCP endpoints using familiar FastAPI `Depends()` for authentication and authorization
- **ASGI transport**: Communicates directly with your FastAPI app using its ASGI interface, eliminating the need for HTTP calls from the MCP to your API
- **Unified infrastructure**: Your FastAPI app doesn't need to run separately from the MCP server (though [separate deployment](https://fastapi-mcp.tadata.com/advanced/deploy#deploying-separately-from-original-fastapi-app) is also supported)
This design philosophy ensures minimum friction when adding MCP capabilities to your existing FastAPI services.
## Development and Contributing
Thank you for considering contributing to FastAPI-MCP! We encourage the community to post Issues and create Pull Requests.
Before you get started, please see our [Contribution Guide](CONTRIBUTING.md).
## Community
Join [MCParty Slack community](https://join.slack.com/t/themcparty/shared_invite/zt-30yxr1zdi-2FG~XjBA0xIgYSYuKe7~Xg) to connect with other MCP enthusiasts, ask questions, and share your experiences with FastAPI-MCP.
## Requirements
- Python 3.10+ (Recommended 3.12)
- uv
## License
MIT License. Copyright (c) 2024 Tadata Inc.