# The Total Growth Session (First Time) with Krzysztof Moszyński

> This is where we do the heavy lifting. Using a blend of coaching and pragmatic systems thinking, we’ll dismantle the beliefs and automatisms keeping you stuck. We don't just treat the symptoms of digital burnout; we rewire your habits, health, and communication for long-term sovereignty. Expect actionable homework and concrete clarity. If online, prepare an app to take notes, as my method includes shared writing. Session length: 90 min Session fee: - 200 PLN for the initial session - 400 PLN for each session after the first

- Host: Krzysztof Moszyński
- Duration: 90 min
- Location: Google Meet, Tamka 4, Warszawa
- Host time zone: Europe/Warsaw
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/krzysztofmoszynski/growthsessionfirst
- Event type id: 2598647

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=2598647&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": 2598647,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is optional; without it the booking uses the event’s first location.