# Brad Khan – Cal.com booking page

> Systems Entrepreneur | Technologist | Philosopher

\- I build companies, technologies, mental models, and new ways of organizing intelligence around power, society, and human agency.

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

## Event types

- [Coffee & Chat](https://cal.com/bradkhan/book): 15, 30 min, confirmed instantly, event type id 548591. Details: https://cal.com/bradkhan/book.md
- [Deep Dive Session](https://cal.com/bradkhan/30min): 60 min, confirmed instantly, event type id 548593. Details: https://cal.com/bradkhan/30min.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