I agree. I was hoping for a few positive examples, but didn't see any. The only one I know of is the OIDC discovery endpoint.
I would say acme-challenge is one of the most used ones. How else would one get SSL certificates today
Another one that is emerging is the A2A agent card https://a2a-protocol.org/latest/topics/agent-discovery/#1-we...
I would say acme-challenge is one of the most used ones. How else would one get SSL certificates today