# 🔹 Krenels: R&D & strategic innovation boutique with Vitaly Krenel

> Krenels — intro & discovery 30 minutes intro and discovery meeting focused on understanding your business context and goals. Meeting goal: to understand whether strategic innovation, internal products, and automations can speed up implementing your business strategy. [scroll] 👇 About Krenels: R&D and strategic innovation boutique https://pitch.com/v/all-krenels-strategic-innovation-boutique-hd936u About Vitaly Krenel Check out my intro: https://t.me/s/aboutkrenels On using R&D to enable stronger business strategy on Linkedin: https://www.linkedin.com/in/vitalykrenel Connect through telegram: https://vitalykrenel.t.me Connect through email [yes, I read it]: vitaly.krenel@gmail.com Have a beautiful day ⛩️

- Host: Vitaly Krenel
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Istanbul
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/krenels/krenels-request
- Event type id: 4546889

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4546889&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

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 4546889,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.