#activitypub

Live, measured metrics for the hashtag #activitypub from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #activitypub

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$10.85/ year · 11-character #name
Claim #activitypub — $10.85/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
67
Uses / 7 days
Mastodon
55
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
6.8
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-23 00:23 UTC
10
10-17
12
10-18
17
10-19
11
10-20
7
10-21
10
10-22
0
10-23

67 uses by 55 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-10-23 00:23 UTC
#activitypubinstance
0 uses · 0 accounts / 7d
#activitypubdev
0 uses · 0 accounts / 7d
#activitypubapi
0 uses · 0 accounts / 7d
#activitypubs
0 uses · 0 accounts / 7d
#activitypubrelay
0 uses · 0 accounts / 7d
#activitypubはマイクロブログでありsnsではありません
0 uses · 0 accounts / 7d
#activitypubmeta
0 uses · 0 accounts / 7d
#activitypubhub
0 uses · 0 accounts / 7d
#activitypubtutorials
0 uses · 0 accounts / 7d
#activitypubどうでもいい写真部
0 uses · 0 accounts / 7d
#activitypubデビュー
0 uses · 0 accounts / 7d
#activitypubsub
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-23 00:23 UTC

Everything below is measured over the latest 40 public posts (spanning ~1063 hours).

Posting hours (UTC) — busiest: 06:00

00:0012:0023:00

Languages: English (33) · German (4) · Portuguese (1) · Spanish (1)

Avg boosts / post: 8.2

Top of the latest posts

  • As you know, I love animals. That's why I built #Pawfed: https://pawfed.org/ It is fully built on #ActivityPub and lets people share messages with #OpenStreetMap to help our animal friends: https://pawfed.org/how-it-works I clearly cannot m

    Fedilab Apps@[email protected]♥ 94↻ 892026-10-20 21:42 UTCView post →

  • I want to remember why the #fediverse exists. Why did you choose to join and be here? :) 🙏 Pls boost for science #askmastodon #askfedi #socialweb #activitypub

    ayo :unverified:@[email protected]♥ 31↻ 832026-10-19 22:58 UTCView post →

  • Concerning #HolosSocial, I still believe it's an interesting project because it brought something new to the #Fediverse. Not only because you run your #ActivityPub server on your device, but mainly because you can own your identity with you

    Fedilab Apps@[email protected]♥ 23↻ 152026-10-22 20:52 UTCView post →

#activitypub across platforms

every network with a public tag surface

Follow #activitypub straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/activitypub