Most API documentation lists endpoints and leaves new developers to work out the order. This guide is organized around the task instead: get a key, send a first request, read the response, handle the common next steps and fix the failures people actually hit. Each page is built so an engineer can finish it in about fifteen minutes.

The sample describes a fictional REST API at /v2 with a rate limit of 300 requests per minute, a default page size of 25 and a p95 latency of 210 ms. Replace the base URL, auth scheme and rate limits with your own, paste real responses from your sandbox and keep only the error codes your API emits.