mcp-builder

@lanej

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK). Covers production patterns: usage tracking, resources vs tools, stdio transport gotcha, tool config gating, and testing without a real client.