> If you use a browser to directly open an API address can only GET method request, RESTful other methods will not be tested.
> After the use of restc can not only send a variety of HTTP method request, or you can edit the request parameters online.
But from images like this [0], I'd be guessing it is sort of like a web GUI for making plain HTTP requests, and probably hooks into your server to automatically give you a list of paths for said requests.
But it could really do with a translation, especially to prove it isn't yet another crappy Chinese GitHub project.
[0] https://fuss10.elemecdn.com/d/d1/3bee7ea4630b9b22d7428221f93...
As it stands, there are many crap projects that appear in either one of the languages we label as "Chinese" or English. Seems to be a dominant split between them.
But, to reinforce my point, here are some Chinese projects of dubious quality, from GitHub's trending lists:
* https://github.com/qiyeboy/IPProxys
* https://github.com/callmelanmao/yunshare