What is ActivityPub?

From Join the Fediverse
This article is a draft!
A lot of info might still be missing and the page might change at any time.


ActivityPub is an open protocol, designed for decentralized social networking. It provides both a server-to-server and a client-to-server API.

The World Wide Web Consortium (W3C) published the ActivityPub standard as a Recommendation in January 2018.