Anthropic API outage history and uptime
Every minute we record whether Anthropic API looked normal, had problems or was likely down (how we decide). This page adds those minutes up by month and lists every incident we've recorded. We started tracking in October 2026, so the first month is partial.
| Month (UTC) | Uptime | Problems | Likely down | Incidents |
|---|---|---|---|---|
| November 2026 | 100% | none | none | 0 |
| October 2026 | 98.33% | 4 h 46 min | 34 min | 8 (8 official) |
Uptime is the share of minutes in which our verdict was “No problems”. Problems and Likely down are the total time with each verdict. Official figures from Anthropic can differ, because they measure their own systems and we also count our checks and visitor reports.
All Anthropic API incidents
October 2026
- Problems · · lasted 41 min · official incident Some users report problems
- Problems · · lasted 42 min · official incident Some users report problems
- Problems · · lasted 33 min · official incident Some users report problems
- Problems · · lasted 1 h 39 min · official incident Some users report problems
- Problems · · lasted 37 min · official incident Some users report problems
- Problems · · lasted 5 min · official incident Some users report problems
- Outage · · lasted 34 min · official incident Likely down
- Problems · · lasted 40 min · official incident Some users report problems
Anthropic API is a product of Anthropic. IsAIDownNow is independent and not affiliated with Anthropic.