ActivityPub and the Web 3.0 Fediverse

TL:DR – Hooking into Mastodon if you’re a WordPress user.


If you’ve been keeping abreast of recent happenings on social media, you will likely be aware that there are a lot of people looking for alternatives to the site ex-pats often call the bird place. I like to call it the bird cage myself, but that’s just a personal preference. There are lots of alternatives to the bird place. Some older and more established than others, such as Reddit and Tumblr, some fresher and not so familiar, including Mastodon and other Fediverse systems.

Mastodon logo
Much of the Fediverse is run using ActivityPub. ActivityPub, previously ActivityPump, is an open source, decentralized social networking protocol originally created by Pump.io. It underpins the client-server system for so much of the newer and emerging online world: Friendica, Mastodon, Nextcloud, Pixelfed, Pleroma, and Mobilizon

Inspiration for this short post was parallel announcements from two of the old-school social media/networking tools, Tumblr and Flickr, that are going to enable AcivityPub on their systems and so bring themselves into the fediverse. If the original social media was Web 2.0, is the federalisation and opening up of the realm Web 3.0?

I’m @[email protected], copy and paste that into your Mastodon search box to find me or open this link.

For WordPress users, there is an ActivityPub plugin that can be used to connect your site to the Fediverse. It is not quite mature but has some useful features at the time of writing this update (February 2023).