Outage in Anthropic
Elevated TCP three-way handshake failures on api.anthropic.com
Resolved MinorIncident Report
Summary AI Generated
Anthropic's API experienced connection timeouts for some requests to api.anthropic.com due to network degradation at an upstream peering point, affecting claude.ai for 50 minutes. Requests that successfully established connections continued to work normally. The issue was resolved by implementing a fix in coordination with upstream providers.
Some API requests to api.anthropic.com are experiencing connection timeouts due to network degradation at an upstream peering point. Requests that successfully connect are unaffected. We are working with our upstream providers to resolve the issue.
Components affected
Anthropic claude.aiNeed to monitor Anthropic outages?
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Latest Updates ( sorted recent to last )
RESOLVED
4 days ago - at 03/06/2026 04:23PM
This incident has been resolved.
MONITORING
4 days ago - at 03/06/2026 04:01PM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
4 days ago - at 03/06/2026 03:34PM
Some API requests to api.anthropic.com are experiencing connection timeouts due to network degradation at an upstream peering point. Requests that successfully connect are unaffected. We are working with our upstream providers to resolve the issue.
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