Developers decide within minutes whether an API is worth their time. This API reference template gives a product team a short, ordered briefing: what the API does, the common use cases, how it behaves, how to get access, what it costs and where to get support. It leaves out code on purpose, so product managers and partner leads can present it, while engineers follow up with the full reference for requests, responses and errors.

The sample is for Kettleby Cloud, a fictional platform with a version 2 REST API of 38 endpoints. It shows a rate limit of 300 requests a minute per key, a p95 latency of 210 ms, and three paid plans from £29 to £690 a month. Replace the base URL, the endpoints, the prices and the contacts with your own, and check each claim against your sandbox, so the quick start you share works on the first try.