4 Types of APIs Every Developer Should Know (Private API vs Public vs Partner vs Composite APIs)

Every API has two categorizations: how it communicates (REST, GraphQL, gRPC...) and who can use it. In this video, I break down the 4 access types every developer should know - Public, Private, Partner, and Composite - using a bookstore example to make each one concrete. You'll also hear the story of how Jeff Bezos's 2002 memo accidentally built AWS, and why Stripe's entire business model is hidden inside the concept of a public API. WHAT YOU'LL LEARN: ✓ The 4 API access types (Public, Private, Partner, Composite) ✓ Real examples from Stripe, Spotify, Amazon, Twitter, Google ✓ How internal APIs become billion-dollar products (the AWS story) ✓ Why "public API" doesn't mean "free API" ✓ When to use each type in your own projects WATCH FIRST: The 7 API Architectural Styles Explained → https://youtu.be/iQRzBk_mNZM TIMESTAMPS: 0:00 — Intro 0:36 — Public APIs 2:48 Private APIs (Internal APIs) 5:08 Partner APIs 6:48 Composite APIs 8:35 Summary Which API type do you work with most? Drop it in the comments. #api #publicapi #privateapi #partnerapi #compositeapi #webdev #programming #coding #softwareengineering #API #BackendDevelopment #SoftwareEngineering #WebDevelopment #SystemDesign #Coding