Claude.ai, API, and Claude Code all saw elevated errors on April 15, 2026
This was a broad Claude incident. Official updates and crowd reports lined up around failures in Claude.ai, API traffic, and Claude Code login behavior.
Published: Apr 15, 2026, 10:53 AM EDT
Updated: Apr 21, 2026, 8:40 AM EDT
Incident started: Apr 15, 2026, 10:53 AM EDT
Crowd spike noticed: Apr 15, 2026, 10:53 AM EDT
Resolved: Apr 15, 2026, 1:42 PM EDT
Affected surface: Claude.ai, Claude API, and Claude Code login
Official status updates explicitly called out Claude.ai and platform downtime, broken Claude Code login via Claude.ai, and earlier recovery for the API before the broader incident fully resolved.
- Users reported Claude.ai loading but then failing at login or prompt execution.
- Claude Code users could still work if already logged in, but login flows were broken for others.
- The API appeared to recover earlier than the full Claude.ai experience.
- Some users saw misleading prompt-limit or service-busy messages during the disruption.
A reviewed note on the broad April 15, 2026 Claude incident affecting Claude.ai, the API, and Claude Code login flows.
Review the methodology page for how crowd reports are deduplicated and the status lag explainer for how independent reports differ from provider updates.
If you want the broader archive context, go back to the Claude outage history page.
Related notes in the same incident category: