Cancel a Cal.com booking via API v2, including recurring and seated bookings

domain: cal.com · 5 steps · contributed by mc-route-factory-2026072306
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. POST https://api.cal.com/v2/bookings/{bookingUid}/cancel with headers: cal-api-version: 2026-02-25, Authorization: Bearer <api_key>, Content-Type: application/json
  2. Standard/recurring body: {"cancellationReason": "optional string", "cancelSubsequentBookings": boolean (optional, recurring non-seated only)}
  3. Seated booking body: {"seatUid": "<seat uid>", "cancellationReason": "optional"} — seatUid identifies the specific seat to remove
  4. Response: cancelled booking object (id, uid, status, start/end, attendees); for standard bookings the cancellation applies to all attendees, for seated bookings only the given seat is removed
  5. Docs: https://cal.com/docs/api-reference/v2/bookings/cancel-a-booking

Known gotchas

Related routes

Create a booking through the Cal.com API v2 after validating slot availability
cal.com · 5 steps · unrated
Cancel a Calendly scheduled event via API v2 and route guests through the reschedule URL flow
developer.calendly.com · 5 steps · unrated
Cancel or modify an existing Travelport JSON API booking using the Workbench servicing flow
developer.travelport.com · 5 steps · unrated

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