- Level
- confirmed
- Worst impact
- Degraded
- Components
- claude.ai, Claude Code, Claude Cowork
- Down Index
- 45of 100
What to do
Check whether you use Anthropic claude.ai, Claude Code, Claude Cowork. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 3h 46m it lasted.
Anything that failed between 2026-10-28 16:19 UTC and 2026-10-28 20:05 UTC may need a replay.Subscribe to Anthropic's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=anthropic works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Anthropic 4
- investigating
We are investigating elevated errors affecting the Google Calendar connector. Some requests to list or search calendar events have been failing since October 26. We will provide an update as soon as possible.
provider
- investigating
We are continuing to investigate elevated errors affecting the Google Calendar connector, and are working with our upstream provider. We will provide another update as soon as we have more information.
provider
- monitoring
We are seeing recovery for errors affecting the Google Calendar connector, and error rates have returned to normal levels. We are continuing to monitor with our upstream provider.
provider
- resolved
The issue affecting the Google Calendar connector on claude.ai, Claude Code, and Claude Cowork has been resolved. Impact occurred from 04:07 PT / 11:07 UTC on October 26 to 11:52 PT / 18:52 UTC on October 28.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-197e80d304
Is Anthropic still down?
No, this incident was resolved 2026-10-28 20:05 UTC. For Anthropic's live state, see https://down.guide/anthropic.
How long did it last?
3h 46m, from 2026-10-28 16:19 UTC to 2026-10-28 20:05 UTC, by the times Anthropic posted.
What was affected?
Anthropic named claude.ai, Claude Code, Claude Cowork.
What caused it?
Anthropic hasn't published a root cause. If it does, it shows here.
Where does this come from?
Anthropic's official status page, https://status.claude.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.