# Free AI Lead Leak Audit with Christian Marin

> We go through your numbers and find what your unanswered leads are actually costing you. I block the full hour so we're not watching a clock, but most of these run about 30 minutes. No pitch, and you walk away with the number either way.

- Host: Christian Marin
- Duration: 60 min
- Location: Cal Video
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/christian-marin-lkfols/free-ai-lead-leak-audit
- Event type id: 6622737

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6622737&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": 6622737,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "How-many-new-leads-do-you-get-in-a-month": "…",
    "How-many-people-answer-your-phones-today": "…",
    "A-seller-calls-at-8pm-and-nobody-picks-up--What-happens-to-that-lead-right-now": "…",
    "How-many-deals-do-you-close-in-a-month": "…",
    "What-is-your-average-profit-on-a-closed-deal": "…",
    "What-CRM-are-you-running-your-leads-in": "…",
    "Wholesaler--or-agent-or-team": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `How-many-new-leads-do-you-get-in-a-month` (How many new leads do you get in a month?), `How-many-people-answer-your-phones-today` (How many people answer your phones today?), `A-seller-calls-at-8pm-and-nobody-picks-up--What-happens-to-that-lead-right-now` (A seller calls at 8pm and nobody picks up. What happens to that lead right now?), `How-many-deals-do-you-close-in-a-month` (How many deals do you close in a month?), `What-is-your-average-profit-on-a-closed-deal` (What is your average profit on a closed deal?), `What-CRM-are-you-running-your-leads-in` (What CRM are you running your leads in?), `Wholesaler--or-agent-or-team` (Wholesaler, or agent or team?)
- 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.