# 15 Min Intro with Grethel

> Meie koostöö algab alati üksteise ootuste ja soovide selgeks tegemisest. Selleks kingin meile 15 minutit. Arutame, millised on sinu ootused, mured ja küsimused ning paneme paika esialgse plaani. Kui sa ei leia sobivat aega, siis palun võta minuga ühendust meili teel.

- Host: Grethel
- Duration: 15 min
- Location: Google Meet
- Host time zone: Europe/Madrid
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/grethel-teejuhiks/15min
- Event type id: 559121

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=559121&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": 559121,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.