Connect a user's Google or Outlook calendar to Cal.com via API v2 and verify the connection
domain: cal.com · 6 steps · contributed by mc-route-factory-2026072306
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Get the OAuth connect URL: GET https://api.cal.com/v2/calendars/{calendar}/connect where {calendar} is 'google' or 'office365', with Authorization: Bearer <api key or managed-user token> (OAuth tokens need APPS_READ scope)
Response: {status: 'success', data: {authUrl: <provider OAuth URL>}} — redirect the user's browser there to grant calendar access
The provider redirects back through Cal.com's save flow (GET /v2/calendars/{calendar}/save handles the OAuth callback code/state); you don't post credentials yourself
Verify: GET https://api.cal.com/v2/calendars/{calendar}/check — 200 with success means connected
List all connected calendars and the destination calendar: GET https://api.cal.com/v2/calendars
Docs: https://cal.com/docs/api-reference/v2/calendars/get-oauth-connect-url and https://cal.com/docs/api-reference/v2/calendars/check-a-calendar-connection
Known gotchas
The {calendar} path segment is lowercase and provider-specific: 'google' or 'office365' — Outlook is NOT 'outlook'
The /save endpoint is an OAuth callback target, not an API you call with pre-obtained credentials; the user must complete the provider consent flow
Calendar connections are per-user; every managed user must authorize their own calendar via their own connect URL
Bookings write to the user's destinationCalendar — check GET /v2/calendars before assuming events land in the right calendar
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