# 15 Minutos with Renan Marques

- Host: Renan Marques
- Duration: 15 min
- Location: Cal Video
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/renan-marques-pagx0k/15-minutos
- Event type id: 5849950

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5849950&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": 5849950,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Nombre-de-tu-negocio": "…",
    "tu-negocio": "…",
    "Que-esperas": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Nombre-de-tu-negocio` (Nombre de tu negocio), `tu-negocio` (¿A qué se dedica tu negocio?), `Que-esperas` (¿Qué esperas que haga el agente de IA por ti?)
- 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.