# NEXTWISE — AI Diagnosis Call with Darius @ NEXTWISE

> 30 minutes. Three questions. One proposal by end of day. We'll cover: What's the most expensive manual process in your business right now? What would a 30% improvement mean in euros per month? What's stopped you from solving it already? No sales pitch. No deck. Just a direct conversation about whether AI can solve your specific problem — and if it can, you'll have a scoped proposal in your inbox before midnight.

- Host: Darius @ NEXTWISE
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Bucharest
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/nextwise/30mindiagnosis
- Event type id: 5117002

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5117002&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": 5117002,
  "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.