Anthropic incident

Claude.ai unavailable and elevated errors on the API

Major Resolved View vendor source →

Anthropic experienced a major incident on April 28, 2026 affecting claude.ai and Claude Console (platform.claude.com) and 1 more component, lasting 1h 33m. The incident has been resolved; the full update timeline is below.

Started
Apr 28, 2026, 05:41 PM UTC
Resolved
Apr 28, 2026, 07:15 PM UTC
Duration
1h 33m
Detected by Pingoru
Apr 28, 2026, 05:41 PM UTC

Affected components

claude.aiClaude Console (platform.claude.com)Claude API (api.anthropic.com)Claude CodeClaude CoworkClaude for Government

Update timeline

  1. investigating Apr 28, 2026, 05:41 PM UTC

    We are investigating an issue preventing users from reaching Claude.ai, and will provide an update as soon as possible.

  2. identified Apr 28, 2026, 05:51 PM UTC

    We have identified an issue resulting in elevated errors on the Anthropic API, as well as issues accessing Claude.ai, including log-in paths for Claude Code. We are working to resolve these issues, and will provide an update as soon as possible.

  3. identified Apr 28, 2026, 06:33 PM UTC

    We are continuing to work to resolve the issues preventing users from accessing Claude.ai, and causing elevated authentication errors for requests to the API and Claude Code.

  4. monitoring Apr 28, 2026, 06:59 PM UTC

    We are seeing success rates across all services return to normal, and are monitoring closely to prevent any further issues. Impact occurred from 17:34–18:52 UTC.

  5. resolved Apr 28, 2026, 07:15 PM UTC

    This incident has been resolved.