<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[How many users are using platforms and apps that are federated with the #ActivityPub protocol?]]></title><description><![CDATA[<p>How many users are using platforms and apps that are federated with the <a href="https://mastodon.social/tags/ActivityPub" rel="tag">#<span>ActivityPub</span></a> protocol?</p><p>I asked that <a href="https://mastodon.social/tags/GeminiPro" rel="tag">#<span>GeminiPro</span></a> using deep research. As always it creates a kind of very lengthy report with a lot of facts using 77 sources.</p><p>At the end it tells me that the answer is about 15 million.</p><p>Well, is that accurate?</p><p><a href="https://mastodon.social/tags/GenerativeAI" rel="tag">#<span>GenerativeAI</span></a></p>]]></description><link>https://bb.devnull.land/topic/8300db36-68a3-4be8-a3ee-7d8873688265/how-many-users-are-using-platforms-and-apps-that-are-federated-with-the-activitypub-protocol</link><generator>RSS for Node</generator><lastBuildDate>Sun, 17 May 2026 13:33:52 GMT</lastBuildDate><atom:link href="https://bb.devnull.land/topic/8300db36-68a3-4be8-a3ee-7d8873688265.rss" rel="self" type="application/rss+xml"/><pubDate>Thu, 09 Apr 2026 19:27:25 GMT</pubDate><ttl>60</ttl></channel></rss>