Practical guides to API testing, mock APIs, and building apps without writing a backend.
There is no single best mock API tool, because "mock API" covers very different jobs: fake data for a tutorial, a stable fixture in CI, a way to test what happens when an API fails. This guide picks the best tools for...
The fastest way to learn API testing is to test real APIs. These ten are free, public and live today, and each is good for practising something different. After the list there are ten practice projects, from a first G...
JSONPlaceholder is brilliant for getting started: instant fake endpoints, predictable JSON, zero setup. At some point, though, your app stops being a demo, and a fake API starts getting in the way. This guide covers w...
Most AI coding agents that touch a REST API in their first session do something predictable: they generate code that fetches a resource, finds it returns 12 fixture users with shallow shapes, write a wrapper that assu...
You can build a working app against ReqRes in minutes if you give your AI tool the right context. Without it, the LLM will guess at endpoints, invent auth headers, and generate code that looks right but fails on every...