DWeb Camp 2026

Evan Prodromou

Evan is the Research Director at SWF. He is the co-author of the ActivityPub protocol and the Activity Streams 2.0 data format. Sometimes called “The Father of the Fediverse,” Evan made the first-ever post on the social web in May 2008. He founded the identi.ca website and GNU Social software, as well as coauthoring the OStatus specification. As chair of the W3C’s Social Web Working Group, he led the development of ActivityPub and AS2 into official standards. He won the O’Reilly Open Source Award in 2009 as “Best Social Networking Hacker.” He is the author of “ActivityPub: Programming for the Social Web” from O’Reilly Media.


Sessions

07-09
17:00
30min
Intro to ActivityPub
Evan Prodromou

ActivityPub is the open W3C standard for social network interoperation. Published in 2018, ActivityPub is implemented by over 100 independent projects, ranging from geosocial checkin clients to Mastodon, Meta Threads, and WordPress. In this introductory talk, Evan will discuss the goals and architecture of ActivityPub, its related standards, and future developments for this fundamental social technology.

Open Social Web
Open Social Space
07-10
09:30
30min
Hacking the ActivityPub API
Evan Prodromou

The ActivityPub social API is a standard client-to-server interface for building innovative social applications. In this hands-on workshop, you'll learn how to create an ActivityPub Web client that will work on any compliant ActivityPub server.

Protocols and Platforms
Hackers Lab