mcp-server-sum

hadi-alhadi/mcp-server-sum

3.2

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A simple Model Context Protocol (MCP) server that provides a `calculate_sum` tool to add two numbers together.

Tools

  1. calculate_sum

    Adds two numbers together.

MCP Sum Server

A simple Model Context Protocol (MCP) server that provides a calculate_sum tool to add two numbers together.

Prerequisites

  • Node.js (v20+ recommended)
  • npm

Install Dependencies

npm install

Build the Server

npm run build

This will compile the TypeScript source code into the build/ directory.

Running the Server

The server is designed to be launched by Claude Desktop via MCP integration, not directly from the command line.

Configure Claude Desktop

  1. Open (or create) the file:

    /Users/hadialhadi/Library/Application Support/Claude/claude_desktop_config.json

  2. Add or update the configuration to include your MCP server:

    {
  "mcpServers": {
    "mcp-server": {
      "command": "/Users/[YOU-USER]/.nvm/versions/node/v20.14.0/bin/node",
      "args": [
        "[PATH-TO-YOUR-PROJECT]/mcp-server-sum/build/index.js"
      ]
    }
  }
}
    • Make sure the command path points to your Node.js binary.
    • The args array should point to the built server file.

  3. Save the file and restart Claude Desktop.

Usage

Once configured, Claude Desktop will automatically launch and communicate with your MCP server when needed. The server exposes a calculate_sum tool that adds two numbers.