# Tassos Natsakis – Cal.com booking page

> Male engineer of human race, lvl 40, of Greek origin. Uses the keyboard as a melee and the (cordless) mouse as ranged. Researching robotics, biomechanics, and life in general.

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

## Event types

- [Online Meeting](https://cal.com/tassos/online-meeting): 15, 30, 60 min, requires the host’s confirmation, event type id 123706. Please choose the duration of the meeting. Usually 30' is enough for thesis projects discussion Details: https://cal.com/tassos/online-meeting.md
- [Face to face meeting](https://cal.com/tassos/f2f-meeting): 15, 30, 60 min, requires the host’s confirmation, event type id 123709. Please choose the duration of the meeting. Usually 30' is enough for thesis projects discussion Details: https://cal.com/tassos/f2f-meeting.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