Open data

All Hourglyph aggregates are open: Claude Code sessions, messages and tokens grouped by UTC weekday, hour and country. Use them in research, dashboards and articles — with a link back.

Download

heatmap.jsonheatmap.csvcountries.csv

Files are rebuilt with the site every 6 hours.

Schema

• utc_weekday — UTC weekday, 0 = Sunday … 6 = Saturday
• utc_hour — UTC hour, 0–23
• total / sessions_* — session starts; messages — messages sent; tokens — all tokens processed (input, output, cache write and read); suffixes _all / _30d — all time / last 30 days
• incidents / incident_hours_* — hours with an open Anthropic incident for Claude, the API or Claude Code (status.claude.com, synced hourly)
• country — ISO 3166-1 alpha-2 country code (derived by the network from the connection; no IPs stored)

{
  "generated_at": "2026-10-05T05:41:16.848Z",
  "license": "CC-BY-4.0",
  "weekday": "0=Sunday … 6=Saturday, UTC",
  "stats": {
    "total": 685
  },
  "all": [
    {
      "utc_weekday": 2,
      "utc_hour": 14,
      "total": 0
    }
  ],
  "last_30d": [
    "…"
  ],
  "countries": [
    {
      "country": "DE",
      "total": 0
    }
  ]
}

Live API

The heatmap, heatmap_30d, countries, countries_30d, claude_incidents and stats views are readable directly over REST:

curl 'https://ludtufvegukpzbdarhnq.supabase.co/rest/v1/heatmap?select=*' \
  -H 'apikey: sb_publishable_yUz1zIFhM4V8qvELLDkKnA_YpjZmPIc'

Caveats

• This is a volunteer sample: it reflects people who installed the hook, not every Claude Code user.
• A session is recorded when it starts, a message when it’s sent, tokens when a turn finishes. Subagent tokens aren’t counted.
• Per network (IPv6 per /64): up to 8 session starts and 30 messages or turns a minute; the site’s button once per 10 minutes.

License: CC BY 4.0 · Cite as: Hourglyph, https://hourglyph.github.io