Claude.ai unavailable and elevated errors on the API

What to do

• Check whether you use Anthropic claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code and 2 more. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 1h 34m it lasted.

  Anything that failed between 2026-04-28 17:41 UTC and 2026-04-28 19:15 UTC may need a replay.

• Subscribe to Anthropic's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=anthropic works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Anthropic 5

1. investigatingApr 28, 2026, 5:41 PM UTC

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

   provider

2. identifiedApr 28, 2026, 5:51 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.

   provider

3. identifiedApr 28, 2026, 6:33 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.

   provider

4. monitoringApr 28, 2026, 6:59 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.

   provider

5. resolvedApr 28, 2026, 7:15 PM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

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