Simple. Practical. Build-first.

Learn Codex by Building an MCP

One focused course. No theory detours. You build a working MCP server from scratch and connect it to Codex.

Start Lesson 1

Course Outline

Codex MCP Course

6 lessons

One practical path: build a working MCP server, connect it to Codex, test it, and ship it.

  1. What Codex + MCP Actually Do 10 min
  2. Scaffold an MCP Server 20 min
  3. Add Your First Tool 25 min
  4. Connect the Server to Codex 15 min
  5. Test, Debug, Iterate 25 min
  6. Ship and Extend 10 min

How You Learn

Build

Scaffold a TypeScript MCP server and define your first tool.

Connect

Attach the server to Codex and invoke tools from real prompts.

Debug

Add a tight feedback loop so your MCP is stable and reusable.