Outage report · Partial outage
Anthropic API outage on Sep 29, 2026
Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude API
What happened
Anthropic API reported a partial outage starting Sep 29, 2026, 14:21 UTC, affecting claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code, Claude Cowork. It was marked resolved at Sep 29, 2026, 16:27 UTC.
- The incident lasted 2h 6m from first report to resolution.
- Anthropic API had reported 11 other partial or major outages in the 90 days before it.
- 8 other vendors we track reported a significant incident within 12 hours of it.
Latest update from Anthropic API
The issue affecting Claude.ai, the Claude desktop and mobile apps, Claude Code, Claude Cowork, and the Claude API has been resolved, and services have been operating normally since recovery. Impact occurred from 07:00 PT / 14:00 UTC to 07:59 PT / 14:59 UTC.
What our independent monitoring saw
Our independent monitoring of Anthropic API started after this incident, so this report is based on Anthropic API's status page.
Other outages around the same time
Significant incidents other vendors reported within 12 hours of this one.
Anthropic API's overall reliability
Anthropic API has a reliability score of 36.9/100, with 97.53% effective uptime and 36 incidents over the last 90 days.
Visit Anthropic API ↗Full Anthropic API reliability report and live status → · Most reliable Anthropic API alternatives →
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