# OPENHUIS (te koop) - Guldensporenstraat 18, 1730 Asse with Kristel Gils

> 29391

- Host: Kristel Gils
- Duration: 20 min
- Location: In Person (Organizer Address)
- Host time zone: Europe/Brussels
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/kristel-gils-bayeza/openhuis-te-koop-guldensporenstraat-18-1730-asse
- Event type id: 5454077

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5454077&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 5454077,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "Achternaam": "…",
    "attendeePhoneNumber": "…"
  }
}
```

- Required fields: `name` (Your name), `Achternaam` (Achternaam), `email` (Email), `attendeePhoneNumber` (Telefoon)
- Optional fields: none
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.