Create a Basic Calculator MCP Server

from fastmcp import FastMCP

mcp = FastMCP("Calculator MCP Server")

@mcp.tool
def add(a: int, b: int) -> int:
    """Add two numbers"""
    return a + b

@mcp.tool
def subtract(a: int, b: int) -> int:
    """Subtract two numbers"""
    return a - b

@mcp.tool
def multiply(a: int, b: int) -> int:
    """Multiply two numbers"""
    return a * b

@mcp.tool
def divide(a: float, b: float) -> float:
    """Divide two numbers"""
    if b == 0:
        raise ValueError("Cannot divide by zero")
    return a / b

@mcp.tool
def power(a: int, b: int) -> int:
    """Raise a number to the power of another number"""
    return a ** b

if __name__ == "__main__":
    mcp.run(transport="http", host="0.0.0.0", port=8000, path="/mcp")