> "Is that the API the thesis has in mind, HTTP itself, while I was always thinking about the one on top, the one that lets me transfer money from my account to

> "Is that the API the thesis has in mind, HTTP itself, while I was always thinking about the one on top, the one that lets me transfer money from my account to someone else?" Yep, that's it. Field's REST/HATEOAS can be used as a "layer" underneath a more traditional, schema-bound, RPC-like API. This is what Google did with GData, for example.