API Testing Tooling

As I study each API, and API related service, I'm always looking for open source tooling that has been developed around each area of the API life cycle. This is an aggregate of tooling I've come across and aggregated as part of my API testing research.

Clients

RequestBin

RequestBin lets you create a URL that will collect requests made to it, then let you inspect them in a human-friendly way. Use RequestBin to see what your HTTP client is sending or to look at webhook requests.

If there is a tool that you think should be listed here, let me know by submitting a Github issue or Tweeting a link at me. I'm always looking for new types of tools, and get better at organizing them here and making sense.