OpenAI API Development
Free Intermediate course · 10 lessons · 2 weeks · Certificate on completion
Build production features on the OpenAI API: structured output, tools, streaming, and files. Across 10 lessons you'll move from fundamentals to a portfolio-ready outcome — at your own pace, with quizzes after each lesson and a final exam to certify your mastery.
What you'll learn
- API basics and authentication
- Chat and responses endpoints
- Structured JSON output
- Function and tool calling
- Streaming responses
- Files and vision input
Skills you'll pick up
- API basics and authentication
- Chat and responses endpoints
- Structured JSON output
- Function and tool calling
- Streaming responses
- Files and vision input
Tools covered
- OpenAI API
- Real-world projects
- Quizzes
- Final exam
Course modules
Module 1: API basics and authentication
Module 1 of OpenAI API Development. 3 lessons · 3h
Module 2: Chat and responses endpoints
Module 2 of OpenAI API Development. 3 lessons · 3h
Module 3: Structured JSON output
Module 3 of OpenAI API Development. 3 lessons · 3h
Module 4: Function and tool calling
Module 4 of OpenAI API Development. 1 lessons · 1h
Lessons in this course
- API basics and authentication
- Chat and responses endpoints
- Structured JSON output
- Function and tool calling
- Streaming responses
- Files and vision input
- Embeddings endpoint
- Rate limits and retries
- Usage tracking and keys
- Building a small AI service
Instructor
Hana Sato — ML Systems Engineer
Hana Sato is a ML Systems Engineer with years of hands-on experience teaching OpenAI API to thousands of learners worldwide.
Certificate
Finish every lesson and pass the final exam to earn a free, verifiable Learnera certificate for OpenAI API Development. It can be downloaded as a PDF and shared on LinkedIn.
Career outcomes
Median global salary $125,000 per year · median India salary ₹17,50,000 per year · 133,558 open roles worldwide
- OpenAI API Specialist
- Senior OpenAI API Lead
- OpenAI API Consultant
Frequently asked questions
Is the OpenAI API Development course free?
Yes. Every Learnera course, including OpenAI API Development, is completely free — lessons, quizzes, the final exam, and the certificate.
How long does OpenAI API Development take?
10 lessons, typically completed in 2 weeks at a comfortable pace.
Do I get a certificate?
Yes — pass the final exam and you receive a free, verifiable certificate you can share on LinkedIn.