# Fit call with Mardien Drew

> A free 15-minute call for new clients to see whether we're a good fit.

- Host: Mardien Drew
- Duration: 15 min
- Location: Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/mardien/fit-call
- Event type id: 7741589

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7741589&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": 7741589,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "company": "…",
    "website": "…",
    "what_you_sell": "…",
    "stage": "…",
    "whats_stuck": "…",
    "notes": "…",
    "package": "…",
    "heard_about": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `company` (Company), `website` (Website), `what_you_sell` (What do you sell, and who to?), `stage` (Which best describes you?), `whats_stuck` (What's stuck right now? One or two sentences is fine.)
- Optional fields: `notes` (Additional notes), `guests` (Add guests), `package` (Did you spot a package on the site that looks right?), `heard_about` (How did you hear about me?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.