# Emilio Johann – Cal.com booking page

> Founder @ UdonBoost

Find Apps for 🍎 Devices & Their Builders

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

## Event types

- [60-Min. App Strategy Session 🍎](https://cal.com/emiliojohann/60-app-strategy-session): 60 min, confirmed instantly, paid, event type id 7313647. ⚡️ Building an app for Apple devices? Bring your app or idea and the biggest question you're working through. You'll leave with clear next steps. Details: https://cal.com/emiliojohann/60-app-strategy-session.md
- [Free 15-Min. App Intro Call 🍎](https://cal.com/emiliojohann/free-15-app-intro-call): 15 min, confirmed instantly, event type id 7313599. ⚡️ Building an app for Apple devices? Let's talk about what you're making and what you're looking for help with. Details: https://cal.com/emiliojohann/free-15-app-intro-call.md
- [15-Min. Call](https://cal.com/emiliojohann/15-min): 15 min, confirmed instantly, event type id 2715637. ⚡️ Book a 15-minute phone call. Details: https://cal.com/emiliojohann/15-min.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