# See InstaFi in Action with InstaFi Support

> See how InstaFi brings origination, servicing, payments, reporting, and borrower workflows into one intelligent lending platform. Book a personalized walkthrough to see how your team can automate manual work, move loans faster, and manage your portfolio from one place.

- Host: InstaFi Support
- Duration: 25 min
- Location: Google Meet
- Host time zone: America/Toronto
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/instafi/demo
- Event type id: 1929141

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1929141&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": 1929141,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "phone": "…",
    "zipcode": "…",
    "Lender-or-REI": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `phone` (Your phone number), `zipcode` (Zip code), `Lender-or-REI` (Are you a real estate investor or a private lender?)
- Optional fields: `guests` (Add guests), `notes` (Is there anything in particular you'd like to learn more about on our call?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.