# 30 min meeting with DocBrain

- Host: DocBrain
- Duration: 30 min
- Location: Cal Video
- Host time zone: Europe/Stockholm
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/docbrain/30min
- Event type id: 6668247

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6668247&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": 6668247,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "only-one-person": "…",
    "-scope-and-systems": "…",
    "-self-hosting": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `only-one-person` (What's a question at your company that only one person can answer?), `-scope-and-systems` (How many engineers would be in scope, and which systems would we connect first?), `-self-hosting` (Does self-hosting matter to you?)
- 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.