> no documentation is needed
I would not want to code against your API.
I would not want to code against your API.
Congratulations, I now have a URL and a JSON file the URL spits out.
I still have no idea what the significance of all the values are. I have no idea what their possible ranges are. I don't know how everything works together.
Edit: Also, that's just GET. If you expect me to poke around with POST to learn how your API works, I will run far, far away.
Even in your link it is plainly obvious that there is no provision for documenting what an endpoint does, or how to find what endpoint maps to something, or even how to query this magical introspective API to figure out what further requests you need to make.