ActionCal.comUpdated May 2026

How do I create a Cal.com booking via API?

Short answer: Drop the "Cal.com → Create Booking" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 7 Cal.com actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Event Type ID eventTypeId	string	Required	The event type ID from Cal.com (numeric). Find it in Cal.com → Event Types.
Start Time start	datetime	Required	ISO 8601 datetime
Attendee Name attendeeName	string	Required	Attendee Name
Attendee Email attendeeEmail	string	Required	Attendee Email
Timezone attendeeTimeZone	string	Optional	Timezone. Example: America/New_York
Notes notes	string	Optional	Notes

Sample request

{
  "eventTypeId": "{{trigger.eventTypeId}}",
  "start": "{{trigger.start}}",
  "attendeeName": "{{trigger.attendeeName}}",
  "attendeeEmail": "{{trigger.attendeeEmail}}",
  "attendeeTimeZone": "e.g. America/New_York"
}

Returns

{
  "data": {
    "uid": "abc-123",
    "title": "30 Min Meeting",
    "status": "accepted",
    "startTime": "2026-04-15T14:00:00Z"
  },
  "status": "success"
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Create Booking.

Any of these apps can fire this action as part of a workflow.

Google Sheets → Cal.com

2 Google Sheets triggers

HubSpot → Cal.com

18 HubSpot triggers

FAQ

Questions about Create Booking.

What does the Create Booking action do in Cal.com?

Books a slot for a specified host event type, time, and booker. Useful for "external scheduling tool → push booking into Cal.com for unified calendar visibility" sync workflows.

What inputs does Create Booking require?

Required: Event Type ID, Start Time, Attendee Name, Attendee Email. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Cal.com returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Create Booking support batch operations?

Yes. Run Create Booking inside a Loop node to process arrays. Tiny Command handles Cal.com's rate limits automatically so you don't have to throttle manually.

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