### Install FastAPI-MCP with uv

Source: https://fastapi-mcp.tadata.com/getting-started/installation

Use this command to add FastAPI-MCP to your project with uv.

```bash
uv add fastapi-mcp
```

--------------------------------

### Install FastAPI-MCP with uv pip or pip

Source: https://fastapi-mcp.tadata.com/getting-started/installation

Install FastAPI-MCP using either uv pip or the standard pip package installer.

```bash
uv pip install fastapi-mcp
```

```bash
pip install fastapi-mcp
```

--------------------------------

### Run MCP Inspector

Source: https://fastapi-mcp.tadata.com/getting-started/FAQ

Use this command to start the MCP Inspector in a new terminal. Connect to your MCP server by entering the mount path URL.

```bash
npx @modelcontextprotocol/inspector
```

--------------------------------

### Mount HTTP MCP Server with FastAPI

Source: https://fastapi-mcp.tadata.com/

Use this snippet to quickly set up a secured MCP server for your FastAPI application. It requires minimal setup and automatically exposes your API at the /mcp endpoint.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

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

--------------------------------

### Combine Operation and Tag Filtering

Source: https://fastapi-mcp.tadata.com/configurations/customization

Use both operation IDs and tags to precisely control which endpoints are exposed. This example includes a specific operation only if it also has a specific tag.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    include_operations=["user_login"],
    include_tags=["public"]
)
mcp.mount_http()
```

--------------------------------

### Configure mcp-remote Client Connection to MCP Server

Source: https://fastapi-mcp.tadata.com/getting-started/quickstart

Configuration for using `mcp-remote` as a bridge for MCP clients that do not support SSE or require authentication. This setup allows for more advanced connection options.

```json
{
  "mcpServers": {
    "fastapi-mcp": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8000/mcp",
        "8080"  // Optional port number. Necessary if you want your OAuth to work and you don't have dynamic client registration.
      ]
    }
  }
}
```

--------------------------------

### Create a Basic MCP Server with FastAPI

Source: https://fastapi-mcp.tadata.com/getting-started/quickstart

Import FastAPI and FastApiMCP, then wrap your FastAPI app with FastApiMCP and mount the HTTP server. This is the foundational step for creating an MCP server.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

# Create (or import) a FastAPI app
app = FastAPI()

# Create an MCP server based on this app
mcp = FastApiMCP(app)

# Mount the MCP server directly to your app
mcp.mount_http()
```

--------------------------------

### FastAPI MCP AuthConfig with setup_proxies=True

Source: https://fastapi-mcp.tadata.com/advanced/auth

Configure FastAPI MCP with Auth0 details, enabling `setup_proxies=True` to ensure compatibility with MCP clients by creating proxy endpoints.

```python
mcp = FastApiMCP(
    app,
    auth_config=AuthConfig(
        # Your OAuth provider information
        issuer="https://auth.example.com",
        authorize_url="https://auth.example.com/authorize",
        oauth_metadata_url="https://auth.example.com/.well-known/oauth-authorization-server",

        # Credentials registered with your OAuth provider
        client_id="your-client-id",
        client_secret="your-client-secret",

        # Recommended, since some clients don't specify them
        audience="your-api-audience",
        default_scope="openid profile email",

        # Your auth checking dependency
        dependencies=[Depends(verify_auth)],

        # Create compatibility proxies - usually needed!
        setup_proxies=True,
    ),
)
```

--------------------------------

### Configure FastApiMCP for Full OAuth 2 Flow

Source: https://fastapi-mcp.tadata.com/advanced/auth

Set up FastApiMCP to support the full OAuth 2 flow by providing necessary authentication server details. This configuration requires a `verify_auth` dependency.

```python
from fastapi import Depends
from fastapi_mcp import FastApiMCP, AuthConfig

mcp = FastApiMCP(
    app,
    name="MCP With OAuth",
    auth_config=AuthConfig(
        issuer=f"https://auth.example.com/",
        authorize_url=f"https://auth.example.com/authorize",
        oauth_metadata_url=f"https://auth.example.com/.well-known/oauth-authorization-server",
        audience="my-audience",
        client_id="my-client-id",
        client_secret="my-client-secret",
        dependencies=[Depends(verify_auth)],
        setup_proxies=True,
    ),
)

mcp.mount_http()
```

--------------------------------

### Define Server Metadata

Source: https://fastapi-mcp.tadata.com/configurations/customization

Set the server name and description when initializing FastApiMCP. This metadata is used to identify your API.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    name="My API MCP",
    description="Very cool MCP server",
)
mcp.mount_http()
```

--------------------------------

### Configure Custom HTTP Client for FastAPI-MCP

Source: https://fastapi-mcp.tadata.com/advanced/asgi

Provide a custom httpx.AsyncClient to FastApiMCP for custom base URLs or timeouts. This bypasses the default ASGI transport.

```python
import httpx
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

custom_client = httpx.AsyncClient(
    base_url="https://api.example.com",
    timeout=30.0
)

mcp = FastApiMCP(
    app,
    http_client=custom_client
)

mcp.mount()
```

--------------------------------

### Run FastAPI MCP Server with Uvicorn

Source: https://fastapi-mcp.tadata.com/getting-started/quickstart

Integrate uvicorn to run your FastAPI application, which includes the mounted MCP server. This allows you to serve the MCP at a specified host and port.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(app)
mcp.mount_http()

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

--------------------------------

### Control Tool Description Verbosity

Source: https://fastapi-mcp.tadata.com/configurations/customization

Configure FastApiMCP to include all response schemas or full JSON schemas in tool descriptions. This is useful for providing more detailed information about API responses.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    name="My API MCP",
    description="Very cool MCP server",
    describe_all_responses=True,
    describe_full_response_schema=True
)

mcp.mount_http()
```

--------------------------------

### Configure FastApiMCP with Custom OAuth Metadata

Source: https://fastapi-mcp.tadata.com/advanced/auth

Provide custom OAuth metadata directly to FastApiMCP for full control over the authentication flow. This is useful for custom OAuth servers or specialized implementations and requires a `verify_auth` dependency.

```python
from fastapi import Depends
from fastapi_mcp import FastApiMCP, AuthConfig

mcp = FastApiMCP(
    app,
    name="MCP With Custom OAuth",
    auth_config=AuthConfig(
        # Provide your own complete OAuth metadata
        custom_oauth_metadata={
            "issuer": "https://auth.example.com",
            "authorization_endpoint": "https://auth.example.com/authorize",
            "token_endpoint": "https://auth.example.com/token",
            "registration_endpoint": "https://auth.example.com/register",
            "scopes_supported": ["openid", "profile", "email"],
            "response_types_supported": ["code"],
            "grant_types_supported": ["authorization_code"],
            "token_endpoint_auth_methods_supported": ["none"],
            "code_challenge_methods_supported": ["S256"]
        },

        # Your auth checking dependency
        dependencies=[Depends(verify_auth)],
    ),
)

mcp.mount_http()
```

--------------------------------

### Mount MCP to a Separate FastAPI App

Source: https://fastapi-mcp.tadata.com/advanced/deploy

Create an MCP server from an existing FastAPI app and mount it to a separate FastAPI application. This allows for independent deployment of the MCP server.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

# Your API app
api_app = FastAPI()
# ... define your API endpoints on api_app ...

# A separate app for the MCP server
mcp_app = FastAPI()

# Create MCP server from the API app
mcp = FastApiMCP(api_app)

# Mount the MCP server to the separate app
mcp.mount_http(mcp_app)
```

--------------------------------

### Mount Custom Path with HTTP and SSE Transport

Source: https://fastapi-mcp.tadata.com/advanced/transport

Configure custom routing and mount MCP with both HTTP and SSE transports to a specific path using an APIRouter.

```python
from fastapi import FastAPI, APIRouter
from fastapi_mcp import FastApiMCP

app = FastAPI()
router = APIRouter(prefix="/api/v1")

mcp = FastApiMCP(app)

# Mount to custom path with HTTP transport
mcp.mount_http(router, mount_path="/my-http")

# Or with SSE transport
mcp.mount_sse(router, mount_path="/my-sse")
```

--------------------------------

### Run FastAPI Apps Separately with Uvicorn

Source: https://fastapi-mcp.tadata.com/advanced/deploy

Run the main API application and the MCP server application independently using Uvicorn. Ensure to specify the correct host and port for each application.

```bash
uvicorn main:api_app --host api-host --port 8001
uvicorn main:mcp_app --host mcp-host --port 8000
```

--------------------------------

### Auth0 Environment Variables Configuration

Source: https://fastapi-mcp.tadata.com/advanced/auth

Required environment variables for Auth0 integration. Ensure these are set in your `.env` file.

```dotenv
AUTH0_DOMAIN=your-tenant.auth0.com
AUTH0_AUDIENCE=https://your-tenant.auth0.com/api/v2/
AUTH0_CLIENT_ID=your-client-id
AUTH0_CLIENT_SECRET=your-client-secret
```

--------------------------------

### Add New Endpoint and Refresh Server

Source: https://fastapi-mcp.tadata.com/advanced/refresh

Add new endpoints to your FastAPI application and then refresh the MCP server to recognize them. Ensure `FastAPI` and `FastApiMCP` are imported.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(app)
mcp.mount_http()

# Add new endpoints after MCP server creation
@app.get("/new/endpoint/", operation_id="new_endpoint")
async def new_endpoint():
    return {"message": "Hello, world!"}

# Refresh the MCP server to include the new endpoint
mcp.setup_server()
```

--------------------------------

### Include Specific Operations

Source: https://fastapi-mcp.tadata.com/configurations/customization

Expose only a predefined list of operations (endpoints) as MCP tools. This is useful for limiting the MCP server's functionality to specific actions.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    include_operations=["get_user", "create_user"]
)
mcp.mount_http()
```

--------------------------------

### Configure mcp-remote for Basic Token Passthrough

Source: https://fastapi-mcp.tadata.com/advanced/auth

Configure your mcp-remote client to pass a valid authorization header to your FastAPI endpoints. Ensure your token is correctly formatted.

```json
{
  "mcpServers": {
    "remote-example": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8000/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ]
    },
    "env": {
      "AUTH_HEADER": "Bearer <your-token>"
    }
  }
}
```

--------------------------------

### Include Specific Tags

Source: https://fastapi-mcp.tadata.com/configurations/customization

Expose only operations tagged with specific values. This allows grouping and exposing related endpoints.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    include_tags=["users", "public"]
)
mcp.mount_http()
```

--------------------------------

### Mount SSE Transport

Source: https://fastapi-mcp.tadata.com/advanced/transport

Use this to mount the FastAPI application with SSE transport for backward compatibility with older MCP implementations.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()
mcp = FastApiMCP(app)

# Mount using SSE transport (backwards compatibility)
mcp.mount_sse()
```

--------------------------------

### Add FastAPI Dependency for Auth Header Verification

Source: https://fastapi-mcp.tadata.com/advanced/auth

Optionally, add a FastAPI dependency to your FastApiMCP instance to reject requests that do not include an authorization header. This requires defining a `verify_auth` function.

```python
from fastapi import Depends
from fastapi_mcp import FastApiMCP, AuthConfig

mcp = FastApiMCP(
    app,
    name="Protected MCP",
    auth_config=AuthConfig(
        dependencies=[Depends(verify_auth)],
    ),
)
mcp.mount_http()
```

--------------------------------

### SSE Transport Client Connection Configuration

Source: https://fastapi-mcp.tadata.com/advanced/transport

Client configuration for connecting to an MCP server using SSE transport. Specifies the server URL.

```json
{
  "mcpServers": {
    "fastapi-mcp": {
      "url": "http://localhost:8000/sse"
    }
  }
}
```

--------------------------------

### HTTP Transport Client Connection Configuration

Source: https://fastapi-mcp.tadata.com/advanced/transport

Client configuration for connecting to an MCP server using HTTP transport. Specifies the server URL.

```json
{
  "mcpServers": {
    "fastapi-mcp": {
      "url": "http://localhost:8000/mcp"
    }
  }
}
```

--------------------------------

### Mount HTTP Transport

Source: https://fastapi-mcp.tadata.com/advanced/transport

Use this to mount the FastAPI application with HTTP transport, the recommended method for better session management and connection handling.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()
mcp = FastApiMCP(app)

# Mount using HTTP transport (recommended)
mcp.mount_http()
```

--------------------------------

### mcp-remote Configuration for Fixed Port

Source: https://fastapi-mcp.tadata.com/advanced/auth

Configure `mcp-remote` to run on a fixed port (e.g., 8080) to allow proper configuration of OAuth provider callback URLs.

```json
{
  "mcpServers": {
    "example": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8000/mcp",
        "8080"
      ]
    }
  }
}
```

--------------------------------

### Define Explicit operation_id for Tool Naming

Source: https://fastapi-mcp.tadata.com/configurations/tool-naming

Use explicit `operation_id` in FastAPI route definitions for clearer tool names. Auto-generated IDs can be cryptic.

```python
# Auto-generated operation_id (something like "read_user_users__user_id__get")
@app.get("/users/{user_id}")
async def read_user(user_id: int):
    return {"user_id": user_id}

# Explicit operation_id (tool will be named "get_user_info")
@app.get("/users/{user_id}", operation_id="get_user_info")
async def read_user(user_id: int):
    return {"user_id": user_id}
```

--------------------------------

### Exclude Specific Tags

Source: https://fastapi-mcp.tadata.com/configurations/customization

Prevent operations tagged with specific values from being exposed as MCP tools. This is useful for excluding administrative or internal endpoints.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    exclude_tags=["admin", "internal"]
)
mcp.mount_http()
```

--------------------------------

### Exclude Specific Operations

Source: https://fastapi-mcp.tadata.com/configurations/customization

Prevent specific operations (endpoints) from being exposed as MCP tools. This is useful for hiding sensitive or internal operations.

```python
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP

app = FastAPI()

mcp = FastApiMCP(
    app,
    exclude_operations=["delete_user"]
)
mcp.mount_http()
```

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