
Calculator MCP Server
Provides basic arithmetic operations and advanced mathematical functions through the Model Context Protocol (MCP), with features like calculation history tracking and expression evaluation.
README
计算器 MCP 服务器
这是一个使用 Model Context Protocol (MCP) 开发的计算器服务器,提供基本的算术运算功能。
功能特点
基本计算器功能
- 加法、减法、乘法、除法的基本运算
- 自动记录计算历史
- 通过资源 API 访问帮助信息和历史记录
高级计算器功能
- 幂运算和平方根计算
- 表达式计算(使用安全的表达式求值)
- 资源更新通知(当历史记录更新时)
安装要求
- Python 3.7 或更高版本
- MCP Python SDK
安装步骤
- 克隆或下载此仓库
- 安装依赖项:
pip install -r requirements.txt
使用方法
运行基本计算器服务器
python calculator_server.py
或者使用 MCP 命令:
mcp run calculator_server.py
运行高级计算器服务器
python advanced_calculator_server.py
运行客户端示例
python calculator_client.py
可用工具
基本工具:
add(a, b)
: 计算 a + bsubtract(a, b)
: 计算 a - bmultiply(a, b)
: 计算 a * bdivide(a, b)
: 计算 a / b
高级工具(仅在高级计算器中可用):
power(base, exponent)
: 计算 base 的 exponent 次幂sqrt(value)
: 计算平方根evaluate_expression(expression)
: 计算数学表达式字符串
可用资源
calculator://help
: 获取帮助信息calculator://history
: 获取计算历史记录
示例代码
使用 Python 客户端调用计算器服务器
from mcp import ClientSession, StdioServerParameters
from mcp.client.stdio import stdio_client
import asyncio
async def main():
server_params = StdioServerParameters(
command="python",
args=["advanced_calculator_server.py"],
)
async with stdio_client(server_params) as (read, write):
async with ClientSession(read, write) as session:
await session.initialize()
# 调用加法工具
result = await session.call_tool("add", {"a": 5, "b": 3})
print(f"5 + 3 = {result}")
# 读取计算历史
history, _ = await session.read_resource("calculator://history")
print(history)
if __name__ == "__main__":
asyncio.run(main())
项目结构
calculator_server.py
: 基本计算器 MCP 服务器advanced_calculator_server.py
: 高级计算器 MCP 服务器,带有更多功能calculator_client.py
: 计算器客户端示例requirements.txt
: 项目依赖README.md
: 项目文档
进一步开发
你可以通过以下方式扩展这个计算器服务器:
- 添加更多数学函数(如三角函数、对数等)
- 实现更复杂的表达式解析器
- 添加图形界面
- 实现持久化存储计算历史
- 添加用户自定义变量和函数
许可证
MIT 许可证
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