# Free app check with Bodgar Espinosa

> Send me your app and I'll go through it before we talk. On the call I'll tell you what's already broken, what deadline is coming, and what it would cost to fix. No sales pitch — if your app is fine, I'll tell you that too.

- Host: Bodgar Espinosa
- Duration: 20 min
- Location: Cal Video
- Host time zone: America/Mexico_City
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/bodgar/free-app-check
- Event type id: 7153835

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7153835&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": 7153835,
  "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.