Hi HN! This is a side project I've been working on for a while now.
It's similar to https://jsonbin.io (which was an inspiration!), but focuses on the second step of prototyping with data - once you're editing JSON online, how do you make sure you don't break your app? npoint.io lets you enforce a structure using JSON schema (http://json-schema.org).
Could you add that to your FAQ? I was like, what the heck is a json bin, what is actually validating this schema, is this something I run on my machine or in the cloud, is this self-hostable, how am I supposed to actually use any of this, what am I suposed to use it for, etc. Cloning jsonbin's about page would be great.
Sounds like the homepage copy could use some work. Thanks for the list of questions you had, that's very useful. jsonbin definitely does a good job of explaining it.