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fediparty-wiki/watchlist-for-activitypub-apps.md

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✔️ == added to live website

🎉 == projects that have successfully federated with this protocol

✒️ == newly added to this page (added, not altered. Only @light to remove please)

Note: Tools with open protocol issue (not yet implemented), not fully open sourced code, no documentation at all, or alpha state with development inactive for several months, not added for now.

List of projects that have an ActivityPub implementation or are committed to one

Note: Most of these projects include both a back-end and a web client, but this list can also include projects that are only a back-end. Projects that are only a web app, for use with an existing back-end, will go on the client watchlist .

Social networks, Microblog Apps

  • ✔️ Aardwolf (site): Facebook-like social network connecting communities across the web AGPL-3.0, Rust

  • ✔️ ActorsCafé: Microblogging server written in C# AGPL-3.0, C#

  • ✔️ Dolphin: Lightweight ActivityPub Server optimized for single-user. A fork and sister project of Misskey AGPL-3.0, Javascript

  • 🎉 ✔️ Epicyon (site): ActivityPub server implementing S2S and C2S protocols, suitable for single board computers. Includes features such as moderation tools, post expiry, content warnings, and image descriptions AGPL-3.0, Python

  • 🎉 ✔️ Friendica (site): Personal network that helps to keep in contact with friends. Interface and functionality include common features of a mainstream social network AGPL-3.0, PHP

  • ✔️ GNU social (site): Microblogging server with multiple plugins AGPL-3.0, PHP

  • 🎉 ✔️ groundpolis: A microblogging service forked from Misskey AGPL-3.0, Typescript

  • 🎉 ✔️ Honk (Fedi account): ActivityPub server with minimal setup and support costs ISC, Go

  • ✔️ Kanzaki: A Mastodon-compatible, ActivityPub-speaking server in OCaml AGPL-3.0, OCaml

  • ✔️ Kibou: Lightweight social networking server AGPL-3.0, Rust

  • Kitsune: In alpha; no commits since November 2018

  • 🎉 ✔️ Kroeg (site): Generic ActivityPub server, with a focus on microblogging style activities - , Rust

  • 🎉 ✔️ Mastodon (site): Epic microblogging network with many features and multiple interface layouts to choose from AGPL-3.0, Ruby

  • 🎉 ✔️ microblog.pub (site): Self-hosted, single-user, ActivityPub powered microblog. Like Pubgate, uses little-boxes AP library AGPL-3.0, Python

  • ✔️ microstatus: Lightweight Mastodon and GNU Social-compatible server implementation ISC, Rust

  • 🎉 ✔️ Misskey (site): Sophisticated microblogging with personality. Provides many additional features like calendar, emoji reactions, polls, games, and many other widgets AGPL-3.0, Javascript

  • 🎉 ✔️ Pleroma

  • pump.io

  • ✔️ Rustodon

  • ✒️ Scuttlebutt - currently working on a bridge between SSB and AP networks

  • 🎉 ✔️ Smithereen - VKontakte-like social network written in Java, with friends, walls, photo albums and groups.

  • 🎉 ✔️ SocialHome - currently working on adding AP support to their Python federation library

  • 🎉 ✔️ Tavern (Fedi account): A minimalistic Activity Pub server. Think Mastodon, but smaller and with fewer features Go, MIT

  • 🎉 ✔️ Zap - Zot app that supports AP natively since the 2019-09-22 release

Blog and Publishing Apps

  • ✒️ Diffu - an attempt at a federated Tumblr/ Medium, aimed at hosting long form articles that easily and neatly embed other kinds of content from any fediverse platform (microblog posts, PixelFed images, PeerTube videos etc). Proposed by a French company called Befox, who attempted to crowdfund development (inspired perhaps by the success or PeerTube and Mobilizon), but didn't hit their target.

  • ✔️ Distbin

  • ✔️ Dokie.li

  • ✔️ FediBlog - fully customisable blog engine

  • ✔️ Hubzilla - federated CMS with a range of groupware tools available as plug-ins. Support AP with the pubcrawl plug-in.

  • Known

  • ✒️ NoteIn - alpha stage; no commits since October 2018

  • ✒️ picopub - created by the developer of Fontina as a "tiny, Mastodon-compatible blog"; no commits since February 2019

  • 🎉 ✔️ Plume

  • ✔️ Read.as - a reading app by the devs of write.as/ WriteFreely

  • ✔️ Radaktor - a WIP AP-powered CMS

  • ✔️ WordPress - an AP plug-in by @pfefferle@mastodon.social, that allows users on AP apps to follow WP blogs, was recently updated. See also Pterotype, which @pfefferle says is currently more feature complete. WordPress is now listed as a project on the-federation.info, although @jdormit says its now on ice.

  • 🎉 ✔️ Write Freely - write.as is the flagship instances.

Link-sharing, Forum, and Group Apps

  • Anancus - by @tuxether, discontinued?

  • ✒️ Discourse - forum software

  • ✒️ Flarum - experimental plugin for the Flarum forum software by @squeevee

  • ✒️ FediQuest - a federated replacement for Q&A sites, only repository, no code so far

  • 🎉 ✔️ Guppe by @datatitian - adds "groups" support as group-type actors

  • ✔️ Lemmy by @LemmyDev

  • ✒️ Lobste.rs - existing Reddit replacement adding AP support

  • ✔️ Littr.me by @mariusor - inspired by old Reddit

  • ✔️ MoonTree - link aggregator , a work in progress

  • ✒️ Pantheon - platform for building communities, no commits since September 2019

  • ✔️ Prismo contact at @prismo

  • ✔️ Smilodon - the server by Purism used in LibreOne, not the abandoned Tuxcraft server or Pylodon client. "A complementary fork of Mastodon, focusing on opt-in public spaces."

Note: Friendica (see above) has a groups engine but there are no reports that federation of groups over AP is working yet

Media-hosting Apps

  • ✔️ Anfora (formerly Zinat) - image sharing [donate]

  • 🎉 ✔️ FunkWhale - music streaming

  • ✒️ Marmota - service like Spotify or any music streaming service, no commits since March 2019;

  • PeerPx - social network for photographers ("alternative to 500px / Flickr"); no commits since October 2018

  • 🎉 ✔️ PeerTube - video-hosting site using WebTorrent

  • 🎉 ✔️ PixelFed - image sharing

  • ✔️ Pubcast - podcasting platform

  • ✔️ reel2bits - Soundcloud-like

  • snap.as - photo sharing

Events and Meetups

Friendica (see above) has an events engine that federates events over AP and is looking to test interop with other AP events apps. NextCloud federated events are in the works but this may or may not be AP-compatible.

Files, Contacts, and Calendar Syncing Apps

Dataset exchanging

  • ✔️ OLKi (site, Fedi account): A self-hosted linguistic corpora exchange platform that aims to be a simple gateway to the Fediverse for scientific interaction AGPL-3.0, Python

Developer Tools

  • ✔️ ActivityPubMock - "If you are implementing an AP server or an AP client, you can use this mock in your unit tests to check that it's behaving correctly"

  • ✔️ ActivityPHP - library for AP in PHP by @landrok

  • ✔️ BridgyFed - bridge to the IndieWeb

  • ✔️ CommonsPub - a fork of Pleroma intended to provide a UX that supports economic transactions and coordination

  • ✒️ Drupal plugin by @swentel

  • ✔️ Express ActivityPub - reference implementation using Express.js

  • ✔️ feed2toot - feed to Mastodon, using the Mastodon client<>server API, not AP

  • ✒️ FedEvent - a prototype for federating event information

  • ✔️ astreams - "ActivityStreams 2.0 encoding/decoding for Go" developed by @MatejLach for use with fediQuest

  • ✔️ ForgeFed (formerly GitPub) - a set of extensions to AP for federation between code forges (Git hosting sites like GitLab, Gogs, Gitea etc) by @forgefed

  • ✔️ go-fed - AP libraries written in Go

  • Indienet - homepage - projects goals seem similar to the federated homepages of the IndieWeb, but federated using AP.

  • ✔️ LitePub - a set of extensions to AP, being developed by devs from Pleroma and Mastodon

  • ✔️ Nautilus - a tool to allow self-hosted blog sites to have their posts followed and commented on via AP

  • ✔️ p3k - a set of tools indie.web sites can use to support AP servers

  • Places.pub - AP implementation testing tool?

  • ✔️ Pterotype PHP library by @jdormit

  • ✔️ pubgate - "Asyncronous Lightweight ActivityPub API ... Based on little-boxes. Implements both the client-to-server API and the federated server-to-server API. Compatible with Mastodon, Pleroma and microblog.pub"

  • Pubstrate - experimental AP implementation written in GNU Guile, no commits since November 2017

  • ✔️ RSS-to-ActivityPub Converter - what is says on the tin ;)

  • Spritely - a new federated media-streaming server in Ratchet, by Chris Webber of MediaGoblin fame; no project code so far

  • tags.pub - AP implementation testing tool?

  • ✔️ Vervis - a web-based code forge and the reference implementation of ForgeFed

  • ✒️ XWiki - a text-based collaboration platform. The XWiki team are the creators of Cryptpad.

Relays reference

Uncategorized

  • 🎉 ✒️ FediReads a federated alternative to Goodreads; no source code so far

It's Dead, Jim

Projects that are officially abandoned by the maintainers or with no signs of life on their code repo or any other official channels for more than a year. Listed on this watchlist just in case anyone doesn't realize they're dead, and thinks we just didn't know about them. Also in case a project is orphaned, then reactivated by a new developer.

  • Acorde - federated social music platform. Almost a year has passed since the initial commit.

  • ActivityStreams: Reference Implementation Apache-2.0, Java

  • ActivityPub.jl - AP support in the Julia language by @Matt5sean3, no commits since August, 2018. Project is missing, presumed dead.

  • Calendar-social - was definitely planning to implement AP. Missing, presumed discontinued

  • CloutStream - proposed by @mwpdx as a federated replacement for LinkedIn. Both @cloutstream and @mwpdx Mastodon.social accounts appears to have been removed from the server, all the project tools appear to be down, or removed from the host.

  • Fontina - proposed as a photo-sharing social media network. GH repo has gone read-only, and now says "dead project".

  • GangGo - Seems to have settled on using Go-Fed for AP federation. Developer has suspended development for the foreseeable future.

  • Numa - built on Ethereum blockchain but intended to federate with AP. No commits since April 2018. No reply on issue about AP compatibility testing from May 8. Homepage now a spam site.

  • Osada - Osada was a full featured social network application running under the ActivityPub protocol. It also communicated with and inter-operated with servers on the Zot6 network. Abandoned by the developers in March 2019.

  • Pylodon - Flask-based (Python) ActivityPub server , source code also on GitLab, no updates on either repo for about a year, nor on their Smilodon client app.

  • Quit.im - this was a photo-sharing web client for a GNU social server, rather than a completely separate app. It would become an AP implementation when the AP plug-in for GS is done, but it's been obsoleted by the release of PixelFed.

  • Smilodon (server by Tuxcraft) - abandoned by developer "I'm now working on Sminos and so this will probably be 100% abandoned. There's not much to salvage, its code is cancer." Sminos appears to have never got beyond the initial commits.

Sources

Aside from project homepages and issue trackers, and comments made on the fediverse, the SocialWG has a list of projects they hoped would implement ActivityPub and links to Issues where it's discussed. Also, there is an implementation report on ActivityPub.rocks. @Mayel from Social.coop created a web spreadsheet of AP apps and their characteristics. More projects using AP are profiled on We Distribute by Sean Tilley and his team. Alternative.to has a list of AP servers and client apps. The ActivityPub tag on GH is also a way to discover projects experimenting with AP.