Simple MCP Server

A basic Model Context Protocol (MCP) server for testing MCP functionality.

Features

This server provides three simple tools:

1. echo - Echoes back any text you provide

2. greet - Generates a greeting message with your name

3. calculate - Performs basic arithmetic operations (add, subtract, multiply, divide)

Related MCP server: MCP Playground Server

Setup

1. Install dependencies:

   npm install

2. Run the server:

   npm start

Testing with Claude Desktop

To test this MCP server with Claude Desktop, add the following to your Claude Desktop configuration:

macOS Configuration

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "simple-mcp-server": {
      "command": "node",
      "args": ["server.js"],
      "cwd": "/path/to/your/my_mcp"
    }
  }
}

Windows Configuration

Add to %APPDATA%/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "simple-mcp-server": {
      "command": "node",
      "args": ["server.js"],
      "cwd": "C:\\path\\to\\your\\my_mcp"
    }
  }
}

Usage Examples

Once connected, you can test the tools:

• Echo: "Use the echo tool to repeat 'Hello World'"

• Greet: "Use the greet tool with the name 'Alice'"

• Calculate: "Use the calculate tool to add 5 and 3"

Troubleshooting

• Make sure Node.js is installed

• Ensure the path in your Claude Desktop config is correct

• Restart Claude Desktop after updating the configuration