Multi-service Claude auth outage; status under investigation.
Claude services experiencing authentication outage; investigation underway
Original: Service disruption on Claude services
Importance: 複数のClaudeサービスの本番認証機能がダウンしており、ユーザーはアクセス不可状態に置かれている。
Summary
Anthropic reported an authentication issue affecting claude.ai, Claude Code, and Claude Cowork on Aug 16 at 21:58 UTC. The company is investigating and will provide updates as soon as possible. Multiple Claude services are simultaneously impacted, potentially preventing user access to these platforms.
Key Points
- Authentication failure across claude.ai, Claude Code, Claude Cowork simultaneously
- Investigation began Aug 16 at 21:58 UTC
- Detailed updates to follow
- Users likely unable to access services
View developer notes (APIs, breaking changes, migration)
Authentication layer outage across claude.ai, Claude Code, and Claude Cowork. Status page shows 'Investigating' with no details on error codes, affected API endpoints, or backend scope yet. Users likely fail at early auth flow stages. API consumers should assume v1/auth/login and OAuth2 flow breakage; retry logic and timeout reconfiguration advised. Suspected RLS or IAM-layer failure.
Source: https://status.claude.com/incidents/qt14v73myyy5
Outlet: Anthropic Status
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