Anthropic outage: Elevated errors on Claude Code and Claude Cowork

Affected components

• Claude Code
• Claude Cowork

1. resolvedAug 28, 2026, 20:21 UTC

   The issue affecting Claude Cowork and Claude Code on the web has been resolved.

2. monitoringAug 28, 2026, 18:21 UTC

   A mitigation has been applied for the issue affecting Claude Cowork and Claude Code on the web, and we are monitoring for recovery. Sessions that disconnected earlier can be retried

3. identifiedAug 28, 2026, 17:22 UTC

   We have identified an issue with an upstream cloud provider affecting Claude Cowork and Claude Code on the web. Some sessions may fail to start or disconnect mid-task; affected sessions can be retried. We are in contact with the provider and will provide an update as soon as possible.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Anthropic's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Supabase: Increased response times for requestsMajor · Aug 27, 2026, 17:20 UTC
• Grafana Cloud: Partial Logs Write OutageMajor · Aug 28, 2026, 17:12 UTC
• Shippo: Elevated error rate on Canada Post ShipmentMajor · Aug 28, 2026, 19:27 UTC
• Akamai: Reporting data availability issues in 'Traffic by Hostname' reportMinor · Aug 20, 2026, 16:43 UTC
• OVHcloud: [EU-SOUTH-MIL][Containers & Orchestration] - Managed Private Registry incident notificationMinor · Aug 26, 2026, 15:00 UTC
• Snowflake: INC20000150Minor · Aug 28, 2026, 00:07 UTC
• Shippo: Elevated error rate on DHL Express label generationMinor · Aug 28, 2026, 19:39 UTC

How often does Anthropic have incidents?

Anthropic reported 47 incidents in the last 90 days, 21 of them major or critical. A typical incident lasted 1h 4m. See Anthropic's uptime and incident history