This is a comprehensive guide for building MCP servers that let LLMs interact with external APIs and services. It walks you through the full process: researching the MCP protocol and your target API, implementing tools in TypeScript or Python, and creating evaluations to test if LLMs can actually use what you built. The opinionated parts are helpful, like recommending TypeScript with streamable HTTP for most cases, and emphasizing comprehensive API coverage over workflow shortcuts. The evaluation section is solid, it makes you verify answers yourself before claiming your server works. If you're building an MCP integration and want more than just the official docs, this gives you a structured playbook with specific testing strategies.
npx skills add https://github.com/aiskillstore/marketplace --skill mcp-builder