at protocol is the protocol
bluesky is a client
Discussion
I was just about to correct my comment. As you say, here's the protocol: https://atproto.com
I see…found the Github. The messaging was just off. MIT licensed, cool.
The hero says “The AT Protocol … Join the waitlist”
That leads to the bluesky site… it also has a link for developers to information on the protocol, haven’t heard of anyone putting together a pre-production pre-bluesky client with it. I think most early developers here were very happy to take a look at branle before venturing off on their own. Does that demo client need to be as polished as bluesky is expected to be, no… I think they probably have many but aren’t highlighted. I’ve seen some git projects from contributors to the protocol that do look like they are makeshift tests.