# Yonatan Efrem – Cal.com booking page

> I help AI, SaaS, and B2B tech companies build brands that are clear, credible, and built to scale.

On our call, we’ll look at where your brand currently stands, what’s holding it back, and what needs to change. Whether you need a new identity, sharper positioning, or a more cohesive visual system, I’ll help you identify the right direction and next steps.

No generic branding talk. Just a focused conversation about your product, your market, and what your brand needs to do its job better.

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

## Event types

- [30 min meeting](https://cal.com/yonatanefrem/30min): 30 min, confirmed instantly, event type id 7029833. Details: https://cal.com/yonatanefrem/30min.md
- [15 min meeting](https://cal.com/yonatanefrem/15min): 15 min, confirmed instantly, event type id 7029832. Details: https://cal.com/yonatanefrem/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