> which are not official standards

It depends on what you mean by 'official standards.' We've registered JSON API with IANA, so it's a standard media type, but there hasn't been an RFC yet, as we're basically just finalizing the spec now. (We're in a week-long period of just textual review, conceptually and structurally, it's done.)

And given that AMS is going into Rails and Ember Data will default to JSON API out of the box, hopefully we'll have enough usage to actually justify an RFC in a year or so.