Interactive lessons
that teach by doing
Each lesson maps 1:1 to a video and includes a live ChatGPT‑App‑style experience with tools, state, and widgets.
Latest lessons
Click through to the merged “lesson + experience” page.
Building ChatGPT Apps 101: Fantasy Football Assistant
Learn to build your first ChatGPT App in under 15 minutes. Understand why ChatGPT Apps matter, how MCP servers work, and see tools and widgets in action.
