# Démo Tracky — 30 minutes with Gaëlle Tracky

> Une démo sur votre activité, pas une présentation générique. On regarde votre façon de facturer aujourd'hui, ce que l'obligation de septembre 2026 change dans votre cas, ce qui se reprend depuis votre outil actuel, et le palier qui vous convient. 30 minutes en visio, sans rien à installer. Sans engagement, sans carte bancaire — et sans relance commerciale derrière.

- Host: Gaëlle Tracky
- Duration: 30 min
- Location: Cal Video
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/tracky/demo
- Event type id: 6770881

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6770881&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": 6770881,
  "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.