ActivityPub
Server to Server This protocol is used to distribute activities between actors on different servers, tying them into the same social graph. Testing This category serves to broadly discuss test practices that help increase Fediverse interoperability. Client to Server This protocol permits a client to act on behalf of a user. E.g., a mobile app to interact with a social stream of the user’s actor. Threadiverse Working Group Social Web Task Force for Threaded Discussions on the Fediverse