1
Add it to Claude Code
claude mcp add mcp-calculator -- mcp-calculatorA2
Make your agent remember this setup
mcp-calculator's config, env vars, and the gotchas you hit — recalled in every future Claude Code, Cursor, and Codex session.
npx conare@latestFree · one command · indexes the sessions already on disk. Set up in the browser instead →
What it does
- Provides basic mathematical addition capabilities
- Integrates directly with Claude via Model Context Protocol
- Supports natural language math requests
- Easy installation via PyPI
Tools 1
addCalculates the sum of two numbers.Try it
→Calculate 55 + 99
→What is the sum of 123 and 456?
→Add 10 and 20 for me.
Original README from RBLPaul-coder/MCP_Learning
MCP Calculator
一个简单的计算器 MCP (Model Context Protocol) 服务器，为 Claude 提供计算功能。
功能
| 工具 | 描述 | 参数 |
|---|---|---|
add |
计算两个数字的和 | a: 第一个数字, b: 第二个数字 |
安装
从源码安装（开发模式）
# 克隆仓库
git clone https://github.com/yourusername/mcp-calculatorA.git
cd mcp-calculatorA
# 创建虚拟环境
python -m venv venv
source venv/bin/activate # Linux/macOS
# venv\Scripts\activate # Windows
# 安装依赖
pip install -e .
从 PyPI 安装
pip install mcp-calculatorA
配置
Claude Code
编辑 ~/.claude/claude_mcp_settings.json:
{
"mcpServers": {
"calculatorA": {
"command": "/path/to/venv/bin/python",
"args": ["-m", "mcp_calculatora"]
}
}
}
Claude Desktop
编辑配置文件:
- macOS:
~/Library/Application Support/Claude/claude_desktop_config.json - Windows:
%APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"calculatorA": {
"command": "mcp-calculatorA"
}
}
}
使用示例
配置完成后，Claude 可以直接调用计算器功能：
用户: 计算 55 + 99
Claude: [调用 add 工具] 55 + 99 = 154
项目结构
mcp-calculatorA/
├── mcp_calculatora/
│ ├── __init__.py
│ └── server.py # MCP 服务器实现
├── pyproject.toml # 项目配置
└── README.md
开发
# 运行服务器（测试）
python -m mcp_calculatora
许可证
MIT License