This seems related to T423818. As of now, the API returns 404 for May 22 onward and the last dump file is pageviews-20260522-110000.

While I agree the timing is suspicious, if T423818 truly is the cause then this isn't related to the disbandment of the CommTech team as the problem is upstream of the code they used to maintain

Backend issue as https://wikimedia.org/api/rest_v1/metrics/pageviews/per-article/en.wikipedia/all-access/user/Cat/daily/2026052200/2026052300 does not provide data while the previous 24h does

It looks like data is now available and the issue is resolved, please confirm:

https://wikimedia.org/api/rest_v1/metrics/pageviews/per-article/en.wikipedia/all-access/user/Cat/daily/2026052200/2026052300

{
  "items": [
    {
      "project": "en.wikipedia",
      "article": "Cat",
      "granularity": "daily",
      "timestamp": "2026052200",
      "access": "all-access",
      "agent": "user",
      "views": 9167
    },
    {
      "project": "en.wikipedia",
      "article": "Cat",
      "granularity": "daily",
      "timestamp": "2026052300",
      "access": "all-access",
      "agent": "user",
      "views": 6817
    }
  ]
}

Looks good to me.