# Intro call with Heads Under™ with Ana @ Heads Under™

> Please book a time to discuss your project and understand how we can help you achieve your goals. Just a chat, no commitment yet. (Can't find a suitable time? Email ana@headsunder.com with your preferences.) - - - Heads Under™ A creative digital design studio based in Sydney

- Host: Ana @ Heads Under™
- Duration: 30 min
- Location: Google Meet
- Host time zone: Australia/Sydney
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/headsunder/intro-meeting-call
- Event type id: 4270393

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4270393&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": 4270393,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "company": "…",
    "budget": "…",
    "timeframe": "…",
    "where-did-you-hear-about-us": "…",
    "notes": "…",
    "website": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `company` (Name of your company?), `budget` (What's your budget?), `timeframe` (What's your timeframe?), `where-did-you-hear-about-us` (Where did you hear about us?), `notes` (Please describe the project and your goals)
- Optional fields: `website` (Existing website? (if applicable)), `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.