List available slots

calcom.listAvailableSlots lists available slots for a personal, team, or dynamic Cal.com event.

automations/list-available-slots.automation.ts

import { automation, markSignificant } from "automate.ax"
import { calcom } from "automate.ax/calcom"

export default automation("List available slots", () => {
  markSignificant(
    calcom.listAvailableSlots({
      eventTypeId: 23,
      start: "2026-09-10",
      end: "2026-09-11",
      timeZone: "UTC",
    }),
  )
})

Input

Pass these fields:

Field	Type	Required	Description
`bookingUidToReschedule`	`string`	No	—
`duration`	`integer`	No	Must be greater than 0.
`end`	`string (date) \| string (date-time)`	Yes	—
`eventTypeId`	`integer`	No	Must be greater than 0.
`eventTypeSlug`	`string`	No	—
`format`	`"range" \| "time"`	No	—
`organizationSlug`	`string`	No	—
`start`	`string (date) \| string (date-time)`	Yes	—
`teamSlug`	`string`	No	—
`timeZone`	`string`	No	—
`username`	`string`	No	—
`usernames`	`string[]`	No	Minimum items: 2.

Output

Returns a record keyed by date. Each value is an array of slot objects.

Field	Type	Required	Description
`start`	`string`	Yes	Slot start.
`end`	`string`	No	Slot end when `format` is `"range"`.
`bookingUid`	`string`	No	Booking identifier for a partially seated slot.
`seatsBooked`	`integer`	No	Seats already booked for a seated event.
`seatsRemaining`	`integer`	No	Seats still available for a seated event.
`seatsTotal`	`integer`	No	Total seats for a seated event.

Identify an event with eventTypeId, or use the slug and owner fields for a personal, team, organization, or dynamic event. The action sends multiple usernames as a comma-separated Cal.com filter. Cal.com enforces account role, plan, and availability requirements. Provider rejections surface as structured action failures with the HTTP status and any Retry-After delay.

Built-in triggers

Built-in actions

Runtime utilities

Integrations

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