# 15 min · fioel website fit with Fioel

> 15 minutes about your studio website. After booking, what to bring: fioel.com/booked

- Host: Fioel
- Duration: 15 min
- Location: Zoom Video
- Host time zone: Europe/Amsterdam
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/fioel/15min
- Event type id: 7522809

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7522809&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": 7522809,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "Studio": "…",
    "Website": "…",
    "What-is-the-main-thing-the-current-website-fails-to-communicate-about-the-studio": "…",
    "notes": "…",
    "Where-did-you-first-hear-about-fioel": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Studio` (Studio)
- Optional fields: `Website` (Website), `What-is-the-main-thing-the-current-website-fails-to-communicate-about-the-studio` (What is the main thing the current website fails to communicate about the studio?), `notes` (Additional Notes), `Where-did-you-first-hear-about-fioel` (Where did you first hear about fioel?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.