# Launch Fit Call with Nishant Sharma

> 15 minutes to work out whether your launch needs a video, a site, or both, and whether now is even the right time. You'll talk to me directly, not an account manager. Bring your product, your launch date if you have one, and what you're announcing. I'll tell you honestly if it's too early. If you have a deck or demo link, bring it. Fifteen minutes goes much further when I have already seen the product.

- Host: Nishant Sharma
- Duration: 15 min
- Location: Google Meet
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/nishant-sharma/intro
- Event type id: 4563080

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4563080&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": 4563080,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Company-or-product-URL": "…",
    "Funding-stage": "…",
    "What-are-you-launching--and-when": "…",
    "What-do-you-think-you-need": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Company-or-product-URL` (Company or product URL), `Funding-stage` (Funding stage)
- Optional fields: `guests` (Add guests), `What-are-you-launching--and-when` (What are you launching, and when?), `What-do-you-think-you-need` (What do you think you need?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.