OAUTH
With very little effort, pretty much anything can be called OAuth 2.0 compliant.
OAuth 2.0 fails to accomplish anything meaningful over the protocol it seeks to replace.
I honestly don’t know what use cases OAuth 2.0 is trying to solve any more.
It will be another hated protocol you are stuck with.
This framework will live for a while, and given the lack of alternatives, it will gain widespread adoption.
--Oauth lead author and editor