# Consulting Call with Eric Otten

> One full hour of direct time with the engineer who leads every build. Bring an idea, a product, or a problem you're stuck on. We'll go deep on it: what to build, how to architect it, where AI gives you an edge, and the fastest path to shipping. You leave with a concrete plan you can act on, whether or not we ever build it for you. The session is paid, and that's the point. The fee keeps this calendar to people serious about their product, so every minute goes to real work.

- Host: Eric Otten
- Duration: 60 min
- Location: Zoom Video
- Host time zone: Asia/Bangkok
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/ericotten/consulting-call
- Event type id: 6336275

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6336275&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": 6336275,
  "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.