#activitystream

Live, measured metrics for the hashtag #activitystream 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 #activitystream

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.

$5.00/ year · 14-character #name
Claim #activitystream — $5.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.2
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 22:34 UTC
0
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-07-27 22:34 UTC
#activitystreams
2 uses · 2 accounts / 7d
#activitystreamr
0 uses · 0 accounts / 7d
#activitystreamsprofile
0 uses · 0 accounts / 7d
#activitystreams2
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 22:34 UTC

Everything below is measured over the latest 40 public posts (spanning ~146531 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (37) · German (2)

Avg boosts / post: 2.3

Top of the latest posts

  • Who on #Fediverse self-host #Indieweb static website with #ActivityPub #ActivityStream , with 3rd party webhook endpoint gateway, and use desktop client\script to send json REST POST replies in to remote #ActivityPub #ActivityStream INBOX ?

    Decenta Lyzed ☯️🇬🇱:dogroll:@[email protected]♥ 2↻ 22025-09-18 21:48 UTCView post →

  • I've spent my Sunday watching videos on #ActivityPub and #ActivityStream. I'm researching ways to implement these features into #gaming. For example #Mastodon and #PixelFed know how to communicate with each other. What if a Minecraft server

    Mike Huntington@[email protected]♥ 2↻ 52022-12-18 19:26 UTCView post →

  • ActivityPub standardization is back! The #W3C just announced a new Working Group to evolve #ActivityPub and #ActivityStream and related standards! This is extremely good news. It's not like all the world's federated social media protocol pr

    Johannes Ernst@[email protected]♥ 1↻ 282026-01-15 18:13 UTCView post →

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/activitystream