ActivityPub is a decentralized social networking protocol standardized by the World Wide Web Consortium (W3C). It includes both an API for social networking clients and an API for server-server federation.
Get up and running with ActivityPub quickly.
ActivityPub-federated video streaming platform using P2P directly in your web browser
Awesome list of ActivityPub based projects
An open-source self-hosted YouTube alternative. Subscribe to other users on other servers using ActivityPub. Reduced bandwidth costs for server owners via WebTorrent.
Mastodon instances list
Link aggregator inspired by (old)reddit using ActivityPub federation.
Gomphotherium (/ˌɡɒmfəˈθɪəriəm/; "welded beast"), a command line Mastodon client.
Federated, ActivityPub-compatible social network server with friends, walls, and groups.