







Please check the errata for any errors or issues reported since publication.
Activity Vocabulary
Please check the errata for any errors or issues reported since publication.
ActivityPub
The ActivityPub protocol is a decentralized social networking protocol based upon the [ActivityStreams] 2.0 data format. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and content.
Episode #140: Eli Mallon - Streamplace and the future of decentralized video streaming
This week we're joined by Eli Mallon, founder of Streamplace, a decentralized video streaming platform. In this episode we discuss the future of decentralized video streaming, the challenges of building a new platform, and how developers can leverage Streamplace's tools. We also go into Atproto, the decentralized social media network that stream place is built on. - https://stream.place/about - https://techcrunch.com/2025/04/04/beyond-bluesky-these-are-the-apps-building-social-experiences-on-the-at-protocol - https://github.com/iameli - https://www.linkedin.com/in/eli-mallon-5703a94a - https://bsky.app/profile/iame.li - https://www.livepeer.org/ Episode sponsored By WorkOS (https://workos.com) and Mailtrap (https://l.rw.rw/devtools_2) Become a paid subscriber our patreon, spotify, or apple podcasts for the full episode. - https://www.patreon.com/devtoolsfm - https://podcasters.spotify.com/pod/show/devtoolsfm/subscribe - https://podcasts.apple.com/us/podcast/devtools-fm/id1566647758 - https://www.youtube.com/@devtoolsfm/membership

AT Protocol
Tap into the event stream for all public activity. Build feeds, bots, search engines, and applications using live activity. No API key required.

AT Protocol
Tap into the event stream for all public activity. Build feeds, bots, search engines, and applications using live activity. No API key required.

Welcome to Streamplace!
Begin your development journey with the Streamplace documentation.
ActivityPub Client API: A Way Forward | Steve Bate
The ActivityPub Client-to-Server (C2S) protocol was envisioned as a cornerstone of the decentralized social web, along with the Server-to-Server (S2S) protocol. Standardized by the W3C in 2018, C2S defines how user-facing applications, such as mobile apps or web clients, and bots should interact with social servers using Activity Streams 2.0 and JSON-LD. In theory, it ... Read more

There are no instances in ATProto | Hacker News
I feel like you've (perhaps purposefully?) misinterpreted "instances" just to plug ATProto specifically at the expense of ActivityPub (and RSS, a bit). I think you lower yourself by doing this:
I'm certainly not against saying what I think AT Protocol has wrong. github.com/swicg/activitypub-api/issues/…
I find the idea of using CBOR as an alternative serialization for Activity Streams to be... interesting. w3c.github.io/cbor-ld/
CBOR-LD 1.0
w3c.github.ioJust wrapped up the ActivityPub, AT Protocol and more stream, the recording is up on twitch at the moment, and will be on youtube soon, and maybe spectra.video soon. Thanks everyone who joined live! Was a almost 5 hour long stream. twitch.tv/videos/2801433122
AT Protocol, ActivityPub and more! - thisismissem on Twitch
www.twitch.tvThe Off Protocol livestream is happening again this Wednesday, join @jimray.bsky.team and @alex.bsky.team on @stream.place (of course)
Off Protocol LIVE
atmo.rsvp@danabra.mov next time someone says to use activity pub remind them that we can build things like this - Characters are @rpg.actor records - Maps are tilemap.world records - You can stream to @stream.place - You can listen to @plyr.fm - The game runs over xrpc We can just integrate things
rpg.actor
Tons of fun playing chaos.soccer today! ⚽ Cheers to @iame.li @trezy.codes @vicwalker.dev.br @tynanpurdy.com @scanash.com and @alanwsmith.com for joining. Huge shout to @chris.pardy.family for creating it. If you've got an rpg.actor character, give it a try!
v2.20 is up! - Bookmarks from Bluesky now supported - Verification badges (can be turned off!) - @ap.brid.gy support (shows full text from ActivityPub when clicking bridged posts) - Video player fixes - Other minor fixes - Roadmap update Please take a look at the full post below for more info!
deck.blue v2.20 is up! | deck.blue
www.patreon.com