APIs & Integration, Explained
an interactive guide

APIs & integration,
explained one step at a time.

Six short, click-through lessons on how services actually talk to each other.

01

REST vs. GraphQL

Fixed endpoints, or exactly the fields you ask for.

start
02

Webhooks

The server calls you, instead of you asking over and over.

start
03

OAuth Flow

Logging in with another service, without sharing your password.

start
04

Rate Limiting

Capping how many requests you can make, and when.

start
05

API Versioning

Changing an API without breaking who already depends on it.

start
06

Idempotency Keys

Making a retried request safe to send twice.

start