Anthropic API problems on 13 November 2026

Status	Resolved
Worst verdict	Some users report problems
Started	13 Nov 2026, 13:10 UTC
Ended	13 Nov 2026, 15:41 UTC
Duration	2 h 31 min
Official incident	Elevated errors on claude.ai, the Claude API, and Claude Code
Affected	Claude API (api.anthropic.com), claude.ai, Claude Code, Claude Cowork

Timeline

13 Nov 2026, 13:10 UTC

We started seeing problems. Our verdict: Some users report problems.
13 Nov 2026, 13:10 UTC · official update

Elevated errors on claude.ai, the Claude API, and Claude Code (investigating): “We are investigating reports of degraded performance affecting claude.ai, the Claude API, and Claude Code. We will provide an update as soon as possible.” Source
13 Nov 2026, 13:52 UTC · official update

Elevated errors on claude.ai, the Claude API, and Claude Code (investigating): “We are investigating reports of degraded performance affecting claude.ai, the Claude API, Claude Code, and connectors (including Claude Docs and Claude Sheets).” Source
13 Nov 2026, 14:04 UTC · official update

Elevated errors on claude.ai, the Claude API, and Claude Code (investigating): “We are investigating reports of degraded performance affecting a variety of surfaces including claude.ai, the Claude API, Claude Code, connectors (including Claude Docs and Claude Sheets), Claude Security and Claude Managed Agents.” Source
13 Nov 2026, 14:37 UTC · official update

Elevated errors on claude.ai, the Claude API, and Claude Code (investigating): “We're seeing recovery on claude.ai and the Claude API, though errors may return while we continue working on this. Connectors, including Docs and Sheets, remain degraded, as do Claude in Meetings, Claude Managed Agents, Claude Security and connector use in Claude Code. Mobile apps are affected in the same way as claude.ai. We'll share another update soon.” Source
13 Nov 2026, 15:34 UTC · official update

Elevated errors on claude.ai, the Claude API, and Claude Code (monitoring): “Errors on claude.ai, including the mobile apps, the Claude API and Claude Code have returned to normal levels, and we are continuing to monitor. Existing connectors, including Docs and Sheets, are working again, and Claude Managed Agents and Claude Meetings are recovering. Adding a new connector on claude.ai is temporarily unavailable. Scheduled tasks and routines can run more than two hours late…” Source
13 Nov 2026, 15:41 UTC

Looking normal again. We'll keep watching for 15 minutes before closing this.
13 Nov 2026, 15:55 UTC

Everything has looked normal for 15 minutes, so we marked this incident as resolved.

Times are shown in your local time zone. “Official update” entries quote Anthropic's status page; follow the source link for the full text.

How we track incidents

We open an incident when Anthropic API stops looking normal or Anthropic posts an official incident, and close it after 15 minutes with everything back to normal. More about our method.