MCP Calculator Server

A modular MCP (Model Context Protocol) server providing mathematical calculations and Sup8 API integration with caching support.

Installation

cd qwen-mcp-adder
node mcp-adder.js

Or using npx:

npx @xiaosheng/mcp-adder

Usage

Add this server to your MCP client configuration:

{
  "mcpServers": {
    "calculator": {
      "command": "node",
      "args": ["/path/to/qwen-mcp-adder/mcp-adder.js"]
    }
  }
}

Project Structure

qwen-mcp-adder/
├── mcp-adder.js          # 主入口文件 (2.68 KB)
├── config.js             # 配置文件 (258 B)
├── cache.js              # 缓存模块 (1.21 KB)
├── tools/
│   ├── index.js          # 工具注册 (1.6 KB)
│   ├── calculator.js     # 计算器工具 (921 B)
│   └── sup8.js           # Sup8 API 工具 (2.31 KB)
├── handlers/
│   ├── initialize.js     # 初始化处理 (429 B)
│   └── tools.js          # 工具调用处理 (954 B)
└── utils/
    └── http.js           # HTTP 请求工具 (3.8 KB)

Tools

Calculator Tools

• add_numbers: Adds two numbers together

  • a (number): The first number
  • b (number): The second number

• multiply_numbers: Multiplies two numbers

  • a (number): The first number
  • b (number): The second number

Sup8 API Tools (with 10-minute cache)

• sup8_decode: Decode Sup8 digit

  • code (string): The digit code
  • enterpriseNo (string): The enterprise number

• sup8_query_code: Query Sup8 digit information

  • code (string): The digit code
  • enterpriseNo (string): The enterprise number

Configuration

在mcp.json中配置 { "mcpServers": { "adder": { "command": "cmd", "args": [ "/c", "npx", "--yes", "mcp-adder-simple@latest" ], "env": { "MYSQL_HOST": "127.0.0.1", "MYSQL_PORT": "3306", "MYSQL_USER": "root", "MYSQL_PASS": "123456", "MYSQL_DB": "supercarrier_masterdata" } } } }

env可以像示例中直接写固定也可以配置写在文件中 { "mcpServers": { "adder": { "command": "cmd", "args": [ "/c", "npx", "--yes", "mcp-adder-simple@latest" ], "env": { "MCP_CONFIG_FILE": "D:\temp\mcp-adder-config.js" } } } }

mcp-adder-config.js的格式 module.exports = { // MySQL 数据库配置 MYSQL_HOST: "127.0.0.1", MYSQL_PORT: "3306", MYSQL_USER: "root", MYSQL_PASS: "123456", MYSQL_DB: "xxxx" };

License

MIT