8-minute full login outage, now fixed. Brief but wide impact.
Claude.ai Login Issues Resolved
Original: Issues logging into Claude.ai
Importance: 本番システム（Claude.ai）への全ユーザーアクセス障害は、時間的には短いが実ユーザーに直接影響を与えるため最高度の重要度。
Summary
Anthropic reported and resolved a login issue affecting Claude.ai on August 24. The incident occurred between 1:00pm–1:08pm PT (20:00–20:08 UTC), causing errors when accessing Claude.ai, including subscription-based logins for Claude Code. The issue has been identified and fixed; Anthropic is monitoring closely for further incidents.
Key Points
- Claude.ai login outage occurred 1:00–1:08pm PT
- Affected both free users and Claude Code subscribers
- Issue identified and resolved; ongoing monitoring
View developer notes (APIs, breaking changes, migration)
A server-side authentication flow disruption occurred on Claude.ai, affecting login and session token generation for both free and subscription users (particularly Claude Code subscribers). Error details (HTTP status codes, affected API endpoints, cache layer state) were not disclosed. Recovery was server-side only; no API client code changes required. Developers may have observed temporary 4xx/5xx errors during the incident window (20:00–20:08 UTC).
Source: https://status.claude.com/incidents/n0rlp126qf8g
Outlet: Anthropic Status
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