Basic MCP Calculator Server

A simple Model Context Protocol (MCP) server that provides basic calculator functionality.

Features

• Add: Add two numbers together

• Subtract: Subtract second number from first number

• Multiply: Multiply two numbers together

• Divide: Divide first number by second number (with division by zero protection)

Related MCP server: my-mcp-server

Installation

1. Install dependencies:

npm install

2. Build the project:

npm run build

Usage

Running the Server

npm start

The server runs on stdio and communicates using the MCP protocol.

Available Tools

• add(a, b) - Returns the sum of a and b

• subtract(a, b) - Returns a minus b

• multiply(a, b) - Returns the product of a and b

• divide(a, b) - Returns a divided by b

Example MCP Configuration

Add this to your MCP client configuration:

{
  "mcpServers": {
    "calculator": {
      "command": "node",
      "args": ["path/to/basic-mcp-calculator-server/dist/index.js"]
    }
  }
}

Development

npm run dev

This will build and start the server in one command.

License

MIT