# 20 Min Free Discovery Call with Divyanshu Raj

> Initial Consultation- This is an session where we'll: See if we're a fit. Talk about your goals and current roadblocks. Create an actionable plan for the next 30-90 days, to scale up your personal brand and client acquisition. DO NOT BOOK IF You're just window shopping and looking for easy solutions. You're not willing to invest in your growth if we're a fit. Disclaimer: This call will be canceled if it's not a fit. We only do 15 min free consults. If you're having trouble scheduling, just drop me a DM on LinkedIn @divyanshuraj, or email me at divyanshuraj@duck.com See you there.

- Host: Divyanshu Raj
- Duration: 15 min
- Location: Zoom Video, Cal Video, Attendee phone number
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/divyanshuraj/intro-15min
- Event type id: 922040

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=922040&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": 922040,
  "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.
- `location` is optional; without it the booking uses the event’s first location.