# Nathan Rehm – Cal.com booking page

> Hello, let's connect! Schedule yourself here, I'm looking forward to talking with you.

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

## Event types

- [50 Minute Session](https://cal.com/lumenhearts/50min): 50 min, confirmed instantly, event type id 669463. After we decide we are a good fit from our consultation, you may book yourself a session here. Details: https://cal.com/lumenhearts/50min.md
- [Complimentary Consultation](https://cal.com/lumenhearts/consultation): 15 min, confirmed instantly, event type id 669461. A free 15-minute phone conversation to discuss what brings you to therapy, ask questions, and consider whether working together may fit. I will call you at the number you provide. Details: https://cal.com/lumenhearts/consultation.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