#Xcast
Live, measured metrics for the hashtag #Xcast from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #xcast
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 12:51 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 12:51 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 12:51 UTCEverything below is measured over the latest 3 public posts (spanning ~9337 hours).
Posting hours (UTC)
Languages: English (3)
Avg boosts / post: 1.3
Top of the latest posts
While we're at it, I'll take the opportunity to mention that #ActivityPub, like any other federation protocol, is an excellent use case for #explicitMulticast (aka #Xcast aka explicit multi-unicast) https://en.wikipedia.org/wiki/Xcast It's
@jwarminsky "Even after receiving these direct warnings, XCast Labs transmitted illegal robocalls to consumers. The FTC also discovered that many of these suspect robocalls were part of organized campaigns to generate telemarketing leads by
I remain convinced that the #indieWeb would have had a much better life if #explicitMulticast #Xcast had reached general adoption https://en.m.wikipedia.org/wiki/Xcast For the Fediverse, imagine how much less expensive would it have been to
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/xcast