# 90 Min Deep-Dive with ProxyBrewer

> Ninety minutes on one Blender project, start to finish. We look at the whole piece, find the one or two things actually holding it back, and fix the biggest one live on your own file while you watch. Then you repeat it back while I watch, which is the part that sticks.

- Host: ProxyBrewer
- Duration: 90 min
- Location: Cal Video
- Host time zone: Europe/Amsterdam
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/proxybrewer/15min
- Event type id: 7728543

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7728543&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": 7728543,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Link-to-your-project-or-blend-file": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Link-to-your-project-or-blend-file` (Link to your project or blend file.)
- 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.