# Envie de rejoindre le programme bêta de Nation ? with Pierre Aliaga

> Hello 👋 c’est Pierre, cofondateur de Nation. Avec notre équipe, on construit un networking plus humain en rassemblant des personnes qui partagent notre vision. On te propose un appel pour te présenter le programme bêta, faire connaissance et t’expliquer ton rôle de bêta-testeur.

- Host: Pierre Aliaga
- Duration: 15 min
- Location: Google Meet
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/pierre-aliaga-nation/15min
- Event type id: 2767155

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=2767155&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": 2767155,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `attendeePhoneNumber` (Phone number), `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.