PyPI outage on May 27, 2025
May 27, 12:53 UTCResolved - We have not seen a return of the traffic that caused this incident after removing the temporary block. We will open a new incident if we need to take action again.May 25, 12:16 UTCUpdate - We have removed the temporary block and are continuing to monitor.May 24, 23:54 UTCMonitoring - Our block is in place and systems are stable, but we are not satisfied with having to block such a generic user-agent. If you are aware of a system that began a mass crawl of PyPI's JSON release endpoints starting at around 22:05 UTC 2025-05-25, please contact admin@pypi.org.May 24
Deterministic readout · awaiting AI summary pass
Incident detected
Major confidence crossed the incident threshold for PyPI Partial Outage.
Marked resolved
The incident was closed after 45 min of observed impact.
No per-source signal payloads were preserved in this incident's snapshot window.
Confidence scoring
80.00The incident reached 80.00 peak confidence across available stored status snapshots.
User reports
0 / 15mNo elevated user-report volume was preserved in the incident window snapshots.
Status samples
0 affectedThe incident row exists, but the bounded snapshot window does not include affected status samples.
Recovery signal
ResolvedRecovery was recorded at Tue, May 27, 2025, 01:38 PM UTC.
PyPI users likely saw failed connections, degraded availability, or session instability for this Package Registry service. The incident reached Major severity and lasted 45 min. The stored report window does not show a preserved user-report spike.