# Strategie- & Beratungsgespräch with Barthold Schalkewitz

> In diesem ausführlichen Termin gehen wir detailliert auf Ihr Projekt, Ihre Ziele und Ihre Anforderungen ein. Gemeinsam analysieren wir die Ausgangssituation, entwickeln passende Lösungsansätze und definieren die nächsten konkreten Schritte für eine erfolgreiche Umsetzung.

- Host: Barthold Schalkewitz
- Duration: 60 min
- Location: Cal Video, Google Meet
- Host time zone: Europe/Berlin
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/barthold/strategie-beratungsgesprach
- Event type id: 7010887

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7010887&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": 7010887,
  "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.
- `location` is optional; without it the booking uses the event’s first location.
- A successful response is a pending booking request.