Advanced Usage
Refreshing the Server
Adding endpoints after MCP server creation
If you add endpoints to your FastAPI app after creating the MCP server, you’ll need to refresh the server to include them:
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Adding endpoints after MCP server creation
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()