# Discovery Call — 40 min with Louis Raillé

> Let's talk about your project for 15 minutes, live. Before the call, take 2 minutes to fill out the form below. It helps me show up with concrete answers instead of generic advice. On the agenda: context, goals, technical feasibility, and next steps if it's a fit. No pitch, no commitment. If you already have a brief or a spec doc, share it as a read-only link (Google Docs, public Notion page, or PDF) that opens without logging in.Au programme : contexte, objectifs, faisabilité technique, et les prochaines étapes si on accroche. Pas de pitch, pas d'engagement. Si tu as déjà un brief ou un cahier des charges, partage-le en lien lecture seule (Google Docs, Notion public ou PDF) — accessible sans connexion.

- Host: Louis Raillé
- Duration: 40 min
- Location: Cal Video
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/louis-raille/decouverte
- Event type id: 5885050

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5885050&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": 5885050,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "projet": "…",
    "type-besoin": "…",
    "societe": "…",
    "budget": "…",
    "echeance": "…",
    "brief": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `projet` (En 2-3 phrases, c'est quoi ton projet ?), `type-besoin` (Quel type de besoin ?)
- Optional fields: `societe` (Société ou activité), `budget` (Budget indicatif), `echeance` (Échéance souhaitée), `brief` (Lien vers ton brief)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.