# Free 20-min intro call with Jacob

> A free 20-minute call with Jacob Tiedtke (Aster Vantage LLC). Tell me what eats your week, whether that's bookkeeping, content, 3D assets or daily admin, and I'll tell you what I'd automate first and what it would cost. No prep needed.

- Host: Jacob
- Duration: 20 min
- Location: Google Meet
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/jacob-tiedtke/intro-call
- Event type id: 7570340

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7570340&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": 7570340,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "interest": "…",
    "website": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `interest` (What would you like to automate?)
- Optional fields: `website` (Your website or store (optional)), `notes` (The task you'd hand off first), `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.