# Joseph Kostousov – Cal.com booking page

> Book a meeting with Joseph Kostousov on Cal.com.

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

## Event types

- [say hi :)](https://cal.com/yosya/hi): 15, 25 min, confirmed instantly, event type id 6410050. If you'd like to chat for longer or none of the available slots work for you, send me a short email at yosya.kostousov@proton.me Details: https://cal.com/yosya/hi.md
- [TAISI team](https://cal.com/yosya/taisi-team): 15, 25, 45, 60 min, confirmed instantly, event type id 6981337. If you are a TAISI organizer, use this link. Otherwise, use this link: https://cal.com/yosya/hi Details: https://cal.com/yosya/taisi-team.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