Fun API Playground

25 free, no-signup mock REST APIs (Friends, Star Wars, Harry Potter, Pokémon, Pizza, Bank, Airline & more) with Swagger-style docs, Bearer auth, pagination, GraphQL, webhooks, and every HTTP status code — 400, 401, 403, 409, 412, 418, 429, 500 — to practice QA and API testing.

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Space Agency API Docs — Fun API Playground

Run a small space program: schedule launches, scrub them for weather, and actually light the candle — a slow, risky operation that sometimes aborts. Probe ping…