> ## Documentation Index
> Fetch the complete documentation index at: https://fastapi-mcp.tadata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to FastAPI-MCP!

> Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!

MCP (Model Context Protocol) is the emerging standard to define how AI agents communicate with applications. Using FastAPI-MCP, creating a secured  MCP server to your application takes only 3 lines of code:

```python {2, 6, 7} theme={null}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(app)
mcp.mount_http()
```

That's it! Your auto-generated MCP server is now available at `https://app.base.url/mcp`

## Features

* [**Authentication**](/advanced/auth) built in, using your existing FastAPI dependencies!

* **FastAPI-native:** Not just another OpenAPI -> MCP converter

* **Zero 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**](/advanced/deploy) - Mount your MCP server to the same app, or deploy separately

* [**ASGI interface**](/advanced/asgi) - Uses FastAPI's ASGI interface directly for efficient internal communication

## Hosted Solution

If you prefer a managed hosted solution check out [tadata.com](https://tadata.com).