MCP Server Go

A simple stdio MCP server implementation written in Go

Overview

MCP Server Go implements the Model Control Protocol (MCP) over standard input/output streams using JSON-RPC 2.0. This server allows communication with AI models via the MCP protocol.

Building

go build -o mcp_server ./cmd

Usage

./mcp_server

Configuration

Environment variables:

• MCP_SERVER_NAME: Custom server name (default: "Baby's First MCP Server")
• MCP_SERVER_VERSION: Server version (default: "0.1.0")

Components

• server: Core server implementation handling JSON-RPC requests
• jsonrpc: JSON-RPC message types and MCP protocol definitions
• stdio: Standard IO reader/writer implementation
• safety: Thread-safe map implementation

Supported Methods

• initialize: Server initialization
• resources/list: List available resources
• resources/read: Read resource content
• tools/list: List available tools
• tools/call: Call a tool

Protocol Version

Implements MCP protocol version "2024-11-05"