# Diagnostic offert (30 min) with Gaylord Petit

> 30 minutes pour faire le point sur les tâches qui vous prennent du temps. Vous me racontez votre quotidien, je vous dis honnêtement ce qui vaut la peine d'être automatisé ou développé sur mesure, et ce qui ne l'est pas. Offert et sans engagement. En visio, ou à Angoulême si vous préférez.

- Host: Gaylord Petit
- Duration: 30 min
- Location: Cal Video, Dans vos locaux (Charente)
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/gaylord-petit/diagnostic
- Event type id: 7610626

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7610626&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": 7610626,
  "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.
- `location` is optional; without it the booking uses the event’s first location.