# Clarity Call with Katja Scalia

> Was in diesem Gespräch passiert: Du erkennst glasklar, warum du feststeckst und welche Optionen genau jetzt effektiv sind Du gehst mit einer klaren Entscheidung raus, was dein nächster Schritt ist Und du weißt, ob und wie ich dir dabei helfen kann

- Host: Katja Scalia
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Berlin
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/katjascalia/mentoring-info
- Event type id: 2847205

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=2847205&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": 2847205,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `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.