MCP Server

A simple Model Context Protocol (MCP) server implementation that provides tool functionality through a standardized interface. This server currently implements a basic calculator tool that can add two numbers together.

Overview

This server uses the @modelcontextprotocol/sdk to create a standardized way of exposing tools to MCP clients. It runs over stdio transport, making it suitable for integration with various client applications.

Features

• Implements MCP Server specification
• Uses stdio transport for communication
• Provides a calculate_sum tool that adds two numbers together

Available Tools

calculate_sum

A simple addition tool that takes two numbers and returns their sum.

Input Schema:

{
  "type": "object",
  "properties": {
    "a": { "type": "number" },
    "b": { "type": "number" }
  },
  "required": ["a", "b"]
}

Response: The tool will return the sum as a text response. For example, "8" for the above input.

Technical Details

• Server Name: mcp-server
• Version: 1.0.0
• Transport: StdioServerTransport
• SDK: @modelcontextprotocol/sdk

Getting Started

1. Install dependencies:

npm|yarn|pnpm install @modelcontextprotocol/sdk

2. Run the server:

• Meant to be used with an MCP client, for example this one. Usage with that client would look like this:

npm|yarn|pnpm start <path_to_this_dir/build/index.js>

Error Handling

The server implements standard MCP error handling. If an unknown method is called, it will return a MethodNotFound error.