Build an MCP Server in Node.js & TypeScript: A Practical HazelJS Tutorial

Expose your existing TypeScript classes to Cursor , Claude Desktop , and any other Model Context Protocol (MCP) client — without writing protocol code, without a heavy SDK, and without standing up a separate HTTP service. This post walks through the hazeljs-mcp-starter example in this folder: a small but realistic task board MCP server, written in TypeScript, that you can run locally with node dist/main.js and immediately drop into your AI tooling. It is not another "hello world" — every pattern