# Bertold Kolics – Cal.com booking page

> I would be happy to meet you either online or in person. For the in-person events, I prefer meeting at coffee shops. If you need more time, please, indicate that in the additional notes section when scheduling a meeting.

Booking page: https://cal.com/bertold

## Event types

- [Verosint](https://cal.com/bertold/verosint): 30 min, confirmed instantly, event type id 796619. Verosint related call Details: https://cal.com/bertold/verosint.md
- [Intro](https://cal.com/bertold/intro): 30 min, confirmed instantly, event type id 31689. A short video call to discuss a project, a proposal or make an introduction. Advance notice of 1 day is required. Google Video call will be scheduled once a booking is made. Details: https://cal.com/bertold/intro.md
- [Coffee](https://cal.com/bertold/coffee): 30 min, confirmed instantly, event type id 268664. If you would like to meet me in person, select this event. You will be prompted to pick a place from a list of my preferred meeting spots. Details: https://cal.com/bertold/coffee.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction