Udemy – OpenAI API Mastery: Build AI Apps with TypeScript

Most developers think AI integration is complicated. It’s not. You just need to know how to connect to the right APIs. In this hands-on course, you’ll build multiple working AI applications using TypeScript, Node.js, and the OpenAI API. No theory lectures – just real code you can use immediately.

What You’ll Build:

• Terminal ChatGPT Clone – Stream AI responses in real-time, just like the real thing
• Email Classifier – Analyze sentiment and return structured JSON data for your apps
• RAG Knowledge Chat – Let users chat with your custom documents and data files
• Function Calling App – AI that can trigger real actions in your application
• Plus foundational examples – Basic responses, streaming, and structured output

What Makes This Different:

I’ve taught almost 80,000 developers on Udemy. I don’t waste your time with endless theory or marketing fluff. You’ll see working code from minute one. Each example builds practical skills you can apply immediately. The entire development and testing for this course cost me 22 cents in API calls – so you’re not looking at expensive experimentation.

What You Need:

• Basic TypeScript knowledge
• Node.js installed
• OpenAI API account (I’ll show you how to set this up)
• That’s it

What You Get:

• Multiple complete, working AI applications
• All source code included with every lesson
• Step-by-step setup and implementation
• Real-world patterns you can use in any TypeScript project