# Appel découverte (15 min) with Agence Apollo

> 15 minutes au téléphone pour faire connaissance. → Vous nous parlez de votre activité et de vos objectifs → On vous dit franchement ce qu’on ferait à votre place → Vous repartez avec des pistes concrètes, qu’on travaille ensemble ou non Gratuit et sans engagement.

- Host: Agence Apollo
- Duration: 15 min
- Location: Attendee phone number
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/agence-apollo/appel-decouverte
- Event type id: 2530394

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=2530394&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": 2530394,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "location": {
    "type": "attendeePhone",
    "phone": "…"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Votre-entreprise-et-votre-activit": "…",
    "Sur-quoi-voulez-vous-avancer": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Votre-entreprise-et-votre-activit` (Votre entreprise et votre activité), `Sur-quoi-voulez-vous-avancer` (Sur quoi voulez-vous avancer ?)
- 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 required: `location.phone` is the attendee’s own.