#activitystreams2
Live, measured metrics for the hashtag #activitystreams2 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #activitystreams2
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.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 08:04 UTC0 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 08:04 UTCNo related tags with measured usage found for #activitystreams2.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 08:04 UTCEverything below is measured over the latest 3 public posts (spanning ~13455 hours).
Posting hours (UTC)
Languages: English (3)
Avg boosts / post: 4.3
Top of the latest posts
So, an interesting issue came up in the #Fedify repo that I've been thinking about: #629. You know how every #fediverse server uses schema:PropertyValue in actor attachment for profile metadata fields (like “Website”, “GitHub”, etc.)? Turns
Am wondering if it'd make sense to have a dedicated Reply activity, such that a reply becomes Reply(Note) instead of Create(Note) Where the Reply activity has the target & is sent to that server only, before being forwarded? Would this make
So I raised this at the end of SWICG Issue Triage, and the consensus there was that we don't need an explicit Reply activity, as there's "any object can have inReplyTo" and "inReplyTo" doesn't necessarily mean "add to the object's replies c
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/activitystreams2