Description

Simple example web app + client showing Model Context Protocol server mounted on an existing fastapi server

Model Context Protocol

FastAPI Mounting

Files

./src/main.py -> main fastapi server app

./src/mcp.py -> mcp sub server app logic

./client/client.py -> sample client showing some communication logic using mcp client lib

Set up

Using Docker to start server

docker build -t fastapi-mcp .
docker run -p 8000:8000 --net=host fastapi-mcp

Set up python environment & run client

pip install -r requirements.txt
python client/client.py

# to run server as well without docker
uvicorn src.main:app

Known Issues

MCP server can only be mounted on root '/'

GitHub Issue

Limitations on MCP python sdk that currently only allows for MCP server to work when mounted on root /