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MCP Calculator

MCP Calculator

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

Related MCP server: Arithmuse

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

Available Tools

1 tool
addB

计算两个数字的和(加法)

Inputs: a (required), b (required).

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    B3.2/5.0

    Scored across 1 tool

    Disambiguation5/5

    With only one tool, there is no possibility of confusion or overlap between tools. The tool's purpose is singular and clearly defined.

    Naming Consistency5/5

    A single tool inherently has perfect naming consistency, as there are no other tools to compare it against for patterns or conventions.

    Tool Count2/5

    A single tool for a calculator server is too few, as it lacks basic operations like subtraction, multiplication, and division, making it severely under-scoped for the domain.

    Completeness1/5

    The tool surface is severely incomplete for a calculator, missing essential arithmetic operations (e.g., subtract, multiply, divide) and other common functions, rendering it inadequate for typical calculator tasks.

    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

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