# UX & Product Design Discovery Call with vikash Gupta

> Let's discuss your project , product vision, or UX challenges. Whether you're building a SaaS platform, mobile app, enterprise software, AI product, or redesigning an existing experience, this discovery call is an opportunity to understand your goals and explore the best solution. During our meeting we'll discuss: • Project requirements • Business goals • UX/UI challenges • Timeline & budget • Technology recommendations • Next steps This consultation is completely free and comes with initial design recommendations tailored to your proje

- Host: vikash Gupta
- Duration: 30 min
- Location: Cal Video
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/vikash-gupta-su6uhb/30min
- Event type id: 6593304

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6593304&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": 6593304,
  "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.