List free slots

GET/api/v1/bookings/slots

scope bookings:read

The start times one member is free for one booking type. Working hours, time off, existing bookings, the type’s buffer and the account’s minimum notice are already applied — anything returned can be booked. from defaults to now and to to the end of the account’s booking window. A window is cut to that horizon and to 45 days per request; page forward with from for more. A window that is entirely in the past, or past the horizon, returns no slots.

Query parameters

Name	Type	Description
`type_id`required	`string (uuid)`	A booking type id
`user_id`required	`string (uuid)`	A bookable member’s user_id
`from`optional	`string (date-time)`	Start of the window. Defaults to now
`to`optional	`string (date-time)`	End of the window. Defaults to the end of the booking window

Request

curl "https://your-crm.example.com/api/v1/bookings/slots?type_id=b00c1e00-1234-4abc-9def-000000000002&user_id=2f3e4d5c-6b7a-4c8d-9e0f-1a2b3c4d5e6f&from=2026-09-05T00%3A00%3A00.000Z&to=2026-09-06T00%3A00%3A00.000Z" \
  -H "Authorization: Bearer $RAABTA_API_KEY"

Response · 200 OK

{
  "data": {
    "slots": [
      "2026-09-05T10:00:00.000Z",
      "2026-09-05T10:30:00.000Z"
    ],
    "time_zone": "Asia/Dubai"
  }
}

Response

Wrapped in { data: … }

Name	Type	Description
`slots`required	`string (date-time)[]`	Free start times in UTC, soonest first. Pass one as starts_at when booking
`time_zone`required	`string`	The business’s IANA time zone — show the slots to a person in this zone

Errors

Status	Code	When
400	`bad_request`	The request could not be parsed: malformed JSON, an invalid cursor, or a query parameter of the wrong shape.
400	`validation_error`	The body or query failed validation. `details` lists each failing field with a `path` and a `message`.
401	`unauthorized`	No usable API key: the Authorization header is missing or malformed, or the key is unknown, revoked or expired. The three are deliberately indistinguishable.
403	`forbidden`	The key is valid but lacks the scope this endpoint requires, or the request came from an address outside the key’s IP allowlist. The message says which.
403	`account_suspended`	The account this key belongs to is suspended. Rotating the key will not help; contact support.
422	`unprocessable`	The request was well-formed but cannot be carried out. `reason` is a stable string saying why (for example `outside_window` or `stage_not_in_pipeline`).
429	`rate_limited`	The per-key budget, or the per-IP budget for failed authentication, is exhausted. Honour `Retry-After` before retrying.
500	`internal`	Something failed on our side. Safe to retry with the same Idempotency-Key; quote `request_id` if it persists.