Anthropic Fixes Claude Code API Outage

Anthropic experienced a major outage on Feb. 3, 2026 that caused Claude Code to return 500 errors and elevated API error rates across all Claude models. The company identified the root cause and implemented a fix within about 20 minutes, and later confirmed the Claude API outage was resolved. The interruption briefly impacted developers, including Microsoft teams that use the service.
Key Points
- 1Observed outages caused 500 errors across Claude Code and elevated API error rates on Feb. 3, 2026
- 2Forced immediate mitigation; Anthropic identified root cause and deployed a fix within about twenty minutes
- 3Alerts developers to resilience risks; teams should implement fallbacks and monitor API health and quotas
Scoring Rationale
Confirmed, timely outage and quick remediation; limited novelty and a single-provider scope constrain broader industry impact.
Sources
Public references used for this report.
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