#activitystreams
Live, measured metrics for the hashtag #activitystreams from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #activitystreams
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 · mastodon.online (Mastodon public tags API) · fetched 2026-11-13 07:32 UTC0 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 2026-11-13 07:32 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-11-13 07:32 UTCEverything below is measured over the latest 40 public posts (spanning ~3448 hours).
Posting hours (UTC) — busiest: 15:00
Languages: English (39) · Italian (1)
Avg boosts / post: 3.5
Top of the latest posts
@alineblankertz @malteengeler Regarding the why: When coding Mastodon, Eugen used those parts of the #ActivityPub and #ActivityStreams standards he found useful. For functionality that was not (yet) covered by those standards, he came up wi
In ActivityPub, these are all equivalent: "type":"Banana" "type":["Banana"] "type":{"＠id":"Banana"} "type":[{"＠id":"Banana"}] "type":{"id":"Banana"} "type":[{"id":"Banana"}] "＠type":"Banana" "＠type":["Banana"] "＠type":{"＠id":"Banana"} "＠typ
Implementing your own #Fediverse #ActivityPub server sounds like a good idea until you see the mush of half-implemented protocols that #Mastodon actually is. #ActivityStreams Link type? Profile? Tombstone? Whomst? Why is there a webfinger e
#activitystreams across platforms
every network with a public tag surfaceFollow #activitystreams 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/activitystreams