Anthropic Restores Claude AI Services After Recurring Outages

AI company Anthropic managed two significant service disruptions to its Claude AI platform within a single week in April 2026. Both incidents primarily affected authentication and login systems across Claude.ai, Claude Code, and the Claude API.

On April 13, a disruption occurred between 15:31 and 16:19 UTC, causing connection problems for users of Claude Cowork and Claude for Government. Data from DownDetector indicated that Claude Code was the most affected tool, representing approximately 67% of user reports. Anthropic applied a fix to restore full access following this event.

A second outage began around 14:53 UTC on April 15, triggering over 20,000 reports on Downdetector as users encountered login failures and busy service messages. Engineers restored the API by 16:01 UTC, while other services remained unstable for a longer period. The incident was fully resolved by 17:42 UTC, after a total of 113 minutes of partial and major outages.