Learn about APIs

Beginner-friendly guides — no prior experience needed.

What is an API?

A plain-English guide — what APIs are, how they work, and how to make your first API call.

Beginner · 5 min read

What is a REST API?

Resources, HTTP verbs, statelessness, and a full worked example against a real API.

Beginner · 7 min read

What is an API key?

How to get one, where it goes in a request, and how to keep it from leaking.

Beginner · 6 min read

Understanding JSON

Data types, nesting, common syntax mistakes, and reading a response in code.

Beginner · 6 min read

More guides coming soon. Browse the API catalog →