Python で MCP サーバーを作りたい

# Python での MCP サーバー
from mcp.server import Server
from mcp.server.stdio import stdio_server
from mcp.types import Tool, TextContent

server = Server("my-python-server")

@server.list_tools()
async def list_tools():
    return [
        Tool(
            name="calculate",
            description="計算を実行",
            inputSchema={
                "type": "object",
                "properties": {
                    "expression": {"type": "string", "description": "計算式"}
                },
                "required": ["expression"]
            }
        )
    ]

@server.call_tool()
async def call_tool(name: str, arguments: dict):
    if name == "calculate":
        result = eval(arguments["expression"])  # 本番では安全な評価を
        return [TextContent(type="text", text=str(result))]

async def main():
    async with stdio_server() as (read, write):
        await server.run(read, write, server.create_initialization_options())

import asyncio
asyncio.run(main())