Learn about APIs
Beginner-friendly guides — no prior experience needed.
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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
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What is REST?
HTTP methods, status codes, and how to read a REST endpoint — explained simply.
Beginner · 6 min read
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What is an API Key?
API keys, OAuth, Bearer tokens — how authentication works and how to store credentials safely.
Beginner · 5 min read
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What is JSON?
How to read and work with JSON — the data format that APIs use to send and receive information.
Beginner · 5 min read
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How to Authenticate with APIs
Step-by-step code examples for API keys, OAuth, and Bearer tokens — plus safe payment API integration.
Intermediate · 7 min read