# Cadran demo with Cadran

> A walkthrough of Cadran, the point of sale and workshop system for watchmakers and watch retailers. We cover service intake, the till, inventory and valuations, and you can ask questions along the way. Have a computer ready.

- Host: Cadran
- Duration: 45 min
- Location: https://whereby.com/cadran
- Host time zone: Europe/Oslo
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/cadran/demo-en
- Event type id: 7104165

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7104165&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": 7104165,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Company": "…",
    "Your-role": "…",
    "attendeePhoneNumber": "…",
    "notes": "…",
    "Website": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Company` (Company), `Your-role` (Your role)
- Optional fields: `attendeePhoneNumber` (Phone number), `notes` (Anything in particular you'd like to see?), `guests` (Add guests), `Website` (Website)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.