# Jay Kumar – Cal.com booking page

> Founder & Software Engineer with a decade of experience in Web3 and AI. Shipped to 1M+ users, generated $50M+ revenue and raised $Millions in funding.

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

## Event types

- [30 Min Meeting](https://cal.com/jaykch/30min): 30 min, confirmed instantly, event type id 3083162. Good for business partnership talks. Details: https://cal.com/jaykch/30min.md
- [Discovery Call](https://cal.com/jaykch/discover-call): 30 min, confirmed instantly, event type id 3478262. Please book a date and time to go over your business needs. Details: https://cal.com/jaykch/discover-call.md
- [15 Min Meeting](https://cal.com/jaykch/15min): 15 min, confirmed instantly, event type id 3083160. For Advisory role intros. Details: https://cal.com/jaykch/15min.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