#activitypubdev

Live, measured metrics for the hashtag #activitypubdev 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 #activitypubdev

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 #activitypubdev — $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
0.8
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.online (Mastodon public tags API) · fetched 2026-10-15 08:39 UTC
0
10-09
0
10-10
0
10-11
0
10-12
0
10-13
0
10-14
0
10-15

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

Related hashtags

measured · mastodon.online (Mastodon public search API) · fetched 2026-10-15 08:39 UTC

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-15 08:39 UTC

Everything below is measured over the latest 40 public posts (spanning ~14247 hours).

Posting hours (UTC) — busiest: 12:00

00:0012:0023:00

Languages: English (25) · Spanish (2) · French (1) · Korean (1)

Avg boosts / post: 1.7

Top of the latest posts

  • For the past couple of days I've been hard at work writing documentation in the attempt to decrease the friction for developers that try #GoActivityPub for their applications. I am of a mind to pay some #Go developers in the near future to

    marius@mariusor@metalhead.club♥ 6↻ 52025-08-25 12:17 UTCView post →
  • Based on a recent discussion about the sharedInbox capabilities of #GoActivityPub servers, I had to go back and revisit the logic to make sure it conforms to the spec to the level that I said it does. Well, after a closer look, I gotta say

    marius@mariusor@metalhead.club♥ 5↻ 12026-09-04 09:58 UTCView post →
  • Finally got to the point where I've started implementing integration testing for the side effects of Add/Move and Remove activities received through the client to server ActivityPub API. #activityPub #activitypubDev #fedidev

    marius@mariusor@metalhead.club♥ 5↻ 42026-08-24 09:46 UTCView post →

#activitypubdev across platforms

every network with a public tag surface

Follow #activitypubdev 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.

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/activitypubdev