"""Simple test MCP server - just addition like in the blog"""
import asyncio
import logging
import os
from fastmcp import FastMCP
logger = logging.getLogger(__name__)
logging.basicConfig(format="[%(levelname)s]: %(message)s", level=logging.INFO)
mcp = FastMCP("Simple Test MCP Server")
@mcp.tool()
def add(a: int, b: int) -> int:
"""Use this to add two numbers together.
Args:
a: The first number.
b: The second number.
Returns:
The sum of the two numbers.
"""
logger.info(f">>> Tool: 'add' called with numbers '{a}' and '{b}'")
return a + b
@mcp.tool()
def subtract(a: int, b: int) -> int:
"""Use this to subtract two numbers.
Args:
a: The first number.
b: The second number.
Returns:
The difference of the two numbers.
"""
logger.info(f">>> Tool: 'subtract' called with numbers '{a}' and '{b}'")
return a - b
if __name__ == "__main__":
logger.info(f"🚀 MCP server started on port {os.getenv('PORT', 8080)}")
# Use streamable-http transport, host="0.0.0.0" required for Cloud Run
asyncio.run(
mcp.run_async(
transport="streamable-http",
host="0.0.0.0",
port=int(os.getenv("PORT", 8080)),
)
)
