Cal.com incident
Resolved: Partial Outage affecting Cal Atoms Endpoint
Cal.com experienced a major incident on July 21, 2026 affecting API, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- resolved Jul 21, 2026, 08:07 AM UTC
Incident Update: We resolved an issue impacting the https://api.cal.com/v2/atoms/event-types/){slug}/public endpoint. A database misconfiguration caused requests to fail. Because the endpoint handler was swallowing these errors into standard 404 responses to streamline user experience, the failures were masked in our logs, leading to silent degradation for Cal Atoms users. Action taken: The DB misconfiguration is fixed. We've added active endpoint monitoring, and follow ups include updated pre-deployment checks, and a change to map system failures report to our monitoring tools so they are properly tracked moving forward.