# 30-Minute Project Consultation with Dmytro Boiko

> Let’s discuss your website, project goals, timeline, and requirements. During this call, we’ll review your current situation, clarify the scope, and determine the most suitable approach for your project. Please share any relevant links, references, or project details before the meeting.

- Host: Dmytro Boiko
- Duration: 30 min
- Location: Cal Video
- Host time zone: Europe/Warsaw
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/k0dik-stfcip/discovery-call
- Event type id: 4163288

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4163288&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": 4163288,
  "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.