# Lukas Himsel – Cal.com booking page

> Flutter & Full Stack Developer & CTO, Industrial Software, GDG Meetup Organizer

Booking page: https://cal.com/lukas-h

## Event types

- [Tarka](https://cal.com/lukas-h/tarka): 15 min, confirmed instantly, event type id 7769404. Details: https://cal.com/lukas-h/tarka.md
- [ScaLabs.AI – Discovery Call](https://cal.com/lukas-h/ai): 30 min, confirmed instantly, event type id 4103866. Talk to us about automating your press, social, and competitive intelligence — from monitoring to published output. Details: https://cal.com/lukas-h/ai.md
- [Konnex Audits – Discovery Call](https://cal.com/lukas-h/konnex-meet): 30 min, confirmed instantly, event type id 1599097. Get a demo of Konnex Audits and see how we can help you manage Gemba, 5S, LPA, and other auditing for your factory or warehouse. Details: https://cal.com/lukas-h/konnex-meet.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