# Claude: Critical incident: Service disruption on Claude services

**Summary:** Claude reported a critical disruption involving authentication issues on claude.ai, Claude Code, and Claude Cowork, plus degraded performance across those services, Claude Console, and the Claude API. It started at 2026-08-16 21:58 UTC and was resolved at 2026-08-16 22:34 UTC, lasting 35 min; a fix was deployed at 22:22 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-08-16 21:58 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/cc6kmwrqhzmh](https://stspg.io/cc6kmwrqhzmh)
- [Company: Claude](https://rewindex.com/company/claude.md)
- Versions: before (none: first archived) → after incident\_version:6/qt14v73myyy5@726390157b24
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Service disruption on Claude services
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-16 21:58 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-16 22:34 UTC
```

**6. Added: Affected components**

```diff
+ claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Console (platform.claude.com), Claude Cowork
```

**7. Added: Update** (investigating) · 2026-08-16 21:58 UTC

```diff
+ We are investigating an issue with users authenticating to claude.ai, Claude Code, and Claude Cowork. We will provide an update as soon as possible.
```

**8. Added: Update** (investigating) · 2026-08-16 22:02 UTC

```diff
+ We are investigating reports of degraded performance affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork. We will provide an update as soon as possible.
```

**9. Added: Update** (monitoring) · 2026-08-16 22:22 UTC

```diff
+ A fix has been deployed for the issue affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork and we are monitoring for recovery.
```

**10. Added: Update** (resolved) · 2026-08-16 22:34 UTC

```diff
+ The issue affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-16 21:58 UTC | Critical incident: Service disruption on Claude services (this change) | outage |

All Claude changes: [timeline](https://rewindex.com/company/claude/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i3f66df5f230ad5 · Markdown: https://rewindex.com/change/i3f66df5f230ad5.md · JSON: https://rewindex.com/api/v1/changes/i3f66df5f230ad5 · Generated 2026-10-18T02:55:04.532Z