







I’ve been spending a bit of time catching up on this discussion and experimenting. I have successfully subscribed to remote ActivityPub actors and processed inbox activities. (My write-up: JG10 Solid devlog ) I ended up using an architecture not yet mentioned here, in which the inbox and outbox are public append LDP containers that receive activities. Solid notifications are used to notify an external agent that reads the new activity and processes it. This works because Solid already supports...
ActivityPub
ActivityPub is a protocol and open standard for decentralized social networking. It provides a client-to-server (C2S) API for creating and modifying content, as well as a federated server-to-server (S2S) protocol for delivering notifications and content to other servers. ActivityPub is the defining standard of the Fediverse, a decentralised social network of various social interaction models, and content types, which consists of independently managed instances of software such as Mastodon, Pixelfed and PeerTube, among others.
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.
Developer Documentation for ActivityPub & Fediverse | SocialDocs
The comprehensive developer resource for building with ActivityPub, Mastodon, and the Fediverse. Guides, specs, API reference, and tools.

ActivityPods - Personal data spaces powered with ActivityPub
Brings together ActivityPub and Solid Pods and empowers developers to create truly decentralized applications.

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

ActivityPub, AT Protocol, and more!
Talking about this article and how ActivityPub and AT Protocol are maybe not as different as people might think. We covered some slides to an unrecorded talk of mine, which explores a lot of things...
FEP-1042: Peer to Peer Fediverse Identities
Hey folks, we at [Distributed Press](https://distributed.press) have been working on making a bridge between peer to peer or "dweb" protocols and ActivityPub implementations over the past year and wanted to solidify our approach so that others can interoperate. Here's is an initial draft expla...
skarnio (@skarnio@alquimidia.social.br)
@vicwalker @sirius Tem algumas frentes de trabalho interessantes, como criar objetos portáteis nativos dentro do #ActivityPub (https://github.com/reiver/vibefed/blob/master/skills/kb-fediverse-portable-objects/SKILL.md) e a possibilidade AP + #Solid (https://activitypods.org / https://) e até com AT (https://forum.solidproject.org/t/integrating-activitypub-within-solid-specs/8355/26). Acredito que seja uma questão de tempo pra esse salto quântico na Web Social Aberta. O que acha @navigator?
Support ActivityPub for GitLab (#11247) · Epics · GitLab.org · GitLab
Gitlab/ActivityPub Design Documents by @oelmekki
Ghost's ActivityPub Integration Feels Half-Baked
Their work is far from over, but lack of development and progress is leaving me wanting.
Event Bridge for ActivityPub
Integrating popular event plugins with the ActivityPub plugin.

I'm certainly not against saying what I think AT Protocol has wrong. github.com/swicg/activitypub-api/issues/…
Exploring the idea of self-hosting a Bluesky PDS alongside my Indiekit instance — turning it into a dual-protocol server that federates over both ActivityPub and AT Protocol simultaneously. Inspired by Wafrn’s approach, adapted to Indiekit’s plugin architecture and Cloudron deployment. The goal: ow…
Ricardo Mendes
rmendes.netI 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.io