API University
Clear, practical API education

Understand APIs.
See how they work.
Put them to use.

API University is a visual, interactive learning experience for anyone who wants to understand APIs, from business and product teams to developers, data professionals, and technical leaders.

Start “What is an API?” → View the 8 lessons ↓
BusinessProductDataDevelopersTechnical teams
CONNECT WITHAPIRequest ↔ Response
⌘Apps
▤Data
⚙Systems
✦AI
One simple idea: software asks, an API defines the exchange, and useful data or functionality comes back.
Start with the fundamentals

What is an API?

Eight short, interactive lessons that explain what APIs are, how requests and responses work, what REST, JSON, and API keys mean, and how APIs are used in real systems.

API Fundamentals

What is an API?

Learn the core concepts without unnecessary jargon. The course combines visual explanations, animated request and response flows, a hands-on API request simulator, and practical examples that make the mechanics clear for both technical and non-technical learners.

8 lessonsInteractiveVisual explanationsHands-on example
Start the course →
Course outline
  1. 01What is an API?
  2. 02Why are APIs important?
  3. 03How do APIs work?
  4. 04Make an API request
  5. 05REST and JSON
  6. 06API keys and access
  7. 07APIs in the real world
  8. 08Put APIs to work
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Understand the concept

Clear explanations establish the vocabulary and mental model behind APIs.

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See the round trip

Animations show requests traveling to an API and structured responses returning with data.

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Try it yourself

Interactive examples let you make a simulated API request and see the response come back.