fediparty-wiki/Watchlist-for-ActivityPub-developer-resources.md

• ✔️ == added to live website at fediverse.party
• ✒️ == newly added to this page (added, not altered. Only @light to remove please)

Contents

• Developer tools
  • Libraries
  • Plugins
  • Relays
  • Bridges
  • Utilities
  • Testing
• Reference material
  • Protocol specifications
  • API documentation
• Tutorials
  • Getting started
  • ActivityPub server-to-server (S2S)
  • ActivityPub client-to-server (C2S)
  • WebFinger
  • Security
• Research & Development
  • Datashards
  • Object capabilities
  • Federated authentication
  • Content addressing
  • Peer-to-peer networking

Developer tools

Libraries

• ✔️ ActivityPhp (site, Fedi account): A PHP implementation of ActivityPub protocol based upon the ActivityStreams 2.0 data format. MIT, PHP

• ✔️ ActivityPub Express: Modular ActivityPub implementation as Express.js middleware to easily add decentralization and federation to Node apps -, Javascript

• ✔️ ActivityPub-PHP (Fedi account): A PHP implementation of the ActivityPub protocol (used in Pterotype plugin). MIT, PHP

• ✔️ activityPub4j: W3C ActivityPub and ActivityStreams implementation in Java using Spring Boot. ?, Java (no license, see: issue)

• ✔️ ActivityStreams: Full ActivityStreams 1.0 and 2.0 reference implementation in Java. Apache-2.0, Java

• ✔️ astreams (Fedi account): A hand-crafted implementation of the Activity Streams 2.0 specification in Go, especially suitable for projects implementing ActivityPub. AGPL-3.0, Go

• ✔️ atoot: Library providing an easy way to create Mastodon API applications MIT, Python

• ✔️ CommonsPub (site): Building blocks for creating multifunctional federated networks with ActivityPub. AGPL-3.0, Elixir

• ✔️ corpus-activity-streams: Activity Streams 2.0 vocabulary data and alternative docs. Unlicense license, Typescript

• ✔️ Express ActivityPub: A very simple reference implementation of an ActivityPub server using Express.js. MIT, Javascript

• ✔️ Federation: Library to abstract social web federation protocols like ActivityPub, Diaspora and Matrix (see docs) BSD-3-clause, Python

• ✔️ Golang ActivityPub (Fedi account): Libraries for using ActivityPub in the Go language. MIT, Go

• ✔️ go-fed activity (site, Fedi account): Full ActivityStreams & ActivityPub implementation in Golang. Extensions can be easily added by design-time code generation from JSON-LD schema's (also supports ForgeFed this way, by default). BSD-3-clause, Go

• ✔️ go-fed apcore (site, Fedi account): A powerful single server ActivityPub framework for performant Fediverse applications. AGPL-3.0, Go

• ✔️ Little Boxes: Tiny ActivityPub framework, both database and server agnostic ISC, Python

• ✔️ Little Library: A digital give-a-book, take-a-book library for ebooks AGPL-3.0, Javascript

• ✔️ Mastodon.py: Python wrapper for the Mastodon API. MIT, Python

• ✔️ Pubstrate: ActivityStreams and ActivityPub library implementation for GNU Guile. Includes a full ActivityStreams library and most of an ActivityPub implementation. GPL-3.0, Guile

• ✔️ Python ActivityPub: A general ActivityPub library MPL-2.0, Python

Plugins

• ✔️ ActivityPub for Drupal (Lead dev): ActivityPub integration for Drupal 8 GPL-2.0, PHP

• ✔️ Pterotype: WordPress plugin. Pterotype connects your blog to the Fediverse by giving it an ActivityPub feed MIT, PHP

• ✔️ WordPress-ActivityPub: ActivityPub for Wordpress MIT, PHP

• ✔️ WordPress-OStatus: An OStatus plugin for WordPress MIT, PHP

• ✔️ XWiki Extension for ActivityPub (site, Fedi account): An implementation of the ActivityPub protocol for XWiki (see forum discussion). LGPL-2.1, Java

Relays

• ✔️ Activity relay AGPL-3.0, Python

• ✔️ Hash2Pub (Fedi account): A fully-decentralised DHT-based relay for global hashtag federation. See White paper, status update (Nov 2020) AGPL-3.0, Haskell

• ✔️ Pub relay AGPL-3.0, Crystal

• ✔️ Seattle relay -, Python

• ✔️ Social relay: Public post relay for the diaspora* federated social network protocol. AGPL-3.0, Python

Bridges

• ✔️ BirdSiteLIVE (Fedi account): An ethical bridge from Twitter AGPL-3.0, C#

• ✔️ BridgyFed (site): Bridges the IndieWeb to federated social networks: ActivityPub, OStatus, etc. Public Domain, Python

• ✔️ Fediverse-Action: Github Action that posts to Fediverse when code is changed. ISC License, Javascript

• ✔️ feed2toot: Parses RSS feeds, identifies new posts and posts them on the Mastodon social network (using the Mastodon API). MIT, Python

• ✔️ gemifedi: A Gemini frontend to the fediverse (specifically, Mastodon and Pleroma instances). AGPL-3.0, Rust

• ✔️ ligh7hau5: A Matrix to Fediverse / ActivityPub client / bridge. Also, some media proxying. GPL-3.0, Javascript

• ✔️ Nautilus: A standalone service to deliver posts from your own website to ActivityPub followers. Apache-2.0, PHP

• ✔️ RSS-to-ActivityPub Converter: Convert any RSS feed to an ActivityPub actor that can be followed by users on ActivityPub-compliant social networks like Mastodon. MIT, Javascript

• ✔️ YouTube2PeerTube: A bot that mirrors YouTube channels to PeerTube channels as videos are released in a YouTube channel. AGPL-3.0, Python

Utilities

• ✔️ Mastodon Bot Autoresponder (Fedi account): a bot that implements group functionality in Mastodon. MIT, Python

• ✔️ OCR Bot (Fedi account): An OCR (Optical Character Recognition) bot for Mastodon (and compatible) instances AGPL-3.0, Python

• ✔️ Pherephone: An ActivityPub server that reblogs all the statuses of certain actors. You set it up to follow a few accounts and it announces everything they post. AGPL-3.0, Go

• ✔️ tags-pub: Provides hashtag objects on the ActivityPub network. Apache-2.0, Javascript

• ✔️ tootgroup.py: Emulate group accounts on Mastodon. GPL-3.0, Python

• ✔️ yt2pt: A simple set of scripts to quickly import your youtube channel to peertube. MIT, Javascript

Testing

• ✔️ activitypub-mock: A mock ActivityPub server to use in testing code Apache-2.0, Javascript

• ✒️ dfk-ap (site): A small ActivityPub debugging server on Glitch MIT, Javascript

• ✔️ FediDB: A suite of tools for AP devs to help make it easier to test and validate your implementation with existing implementations like Mastodon, PeerTube, Pixelfed and Pleroma -, -

• ✔️ Test Suite: An unofficial partially-automated ActivityPub test suite AGPL-3.0, Go

Reference material

Protocol specifications

• ✔️ ForgeFed, formerly GitPub (site, Fedi account): A set of extensions to ActivityPub for federation between code forges (i.e. git hosting sites like GitLab, Gogs, Gitea, etc. Reference implementation is Vervis). CC0-1.0

• ✔️ LitePub (Fedi account): A set of extensions to AP, being developed by devs from Pleroma and Mastodon (status: for the most part litepub group folded back into SocialCG, see: issue)

• ✔️ NodeInfo2: An effort to create a standardized way of exposing metadata about a server. Helps expose ownership and organization details, usage statistics and protocol capabilities. CC0-1.0

API documentation

Tutorials

Getting started

ActivityPub server-to-server (S2S)

ActivityPub client-to-server (C2S)

WebFinger

Security

NodeInfo

Research & Development

Datashards

Object capabilities

Federated auth/authz

• ✒️ The did:orb Method (github): A DID Method for a fediverse of interconnected nodes and witnesses.

Content addressing

Peer-to-peer networking