FastAPI to MCP Auto Generator

The FastAPI to MCP Auto Generator is a powerful tool that automatically converts existing FastAPI applications into Model Context Protocol (MCP) servers. This enables developers to quickly make their FastAPI APIs available to AI agents without manual restructuring.

Key Features

• Automatic Conversion: Transform FastAPI apps to MCP servers automatically
• Preserve API Logic: Maintain existing FastAPI functionality and business logic
• Zero Refactoring: No need to rewrite existing FastAPI code
• AI Agent Integration: Make APIs instantly available to AI systems
• Type Safety: Preserve FastAPI's type annotations and validation

Installation

pip install fastapi-mcp-generator

Getting Started

Convert your FastAPI app to MCP server:

from fastapi import FastAPI
from fastapi_mcp import convert_to_mcp

# Your existing FastAPI app
app = FastAPI()

@app.get("/users/{user_id}")
def get_user(user_id: int):
    return {"user_id": user_id, "name": "User"}

# Convert to MCP server
mcp_server = convert_to_mcp(app)
mcp_server.start()

Benefits

• Rapid Integration: Convert existing APIs to MCP in minutes
• No Code Changes: Keep your FastAPI code as-is
• AI-Ready: Make APIs immediately accessible to AI agents
• Production Ready: Built on proven FastAPI foundation

Use Cases

• Converting existing FastAPI services to MCP
• Making REST APIs available to AI agents
• Modernizing legacy API integrations
• Building AI-accessible microservices