# Premier échange – 15 minutes with Steven Graton

> Un échange rapide pour comprendre votre activité, votre besoin et vérifier si je peux vous accompagner. Aucun engagement à l’issue du rendez-vous.

- Host: Steven Graton
- Duration: 15 min
- Location: Google Meet
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/steven-graton/premier-echange-15-minutes
- Event type id: 6532052

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6532052&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": 6532052,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "Type-de-projet": "…",
    "Adresse-du-site-existant": "…",
    "En-quelques-phrases--quel-est-votre-besoin": "…",
    "Budget-approximatif": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `attendeePhoneNumber` (Phone number), `Type-de-projet` (Type de projet), `Adresse-du-site-existant` (Adresse du site existant), `En-quelques-phrases--quel-est-votre-besoin` (En quelques phrases, quel est votre besoin ?)
- Optional fields: `Budget-approximatif` (Budget approximatif)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.