# Free 30-minute scoping call with Thomas Williams

> A free call for firms of about 10 to 200 people. We'll go over which security rules apply to you and where the gaps are. Please don't share customer or client information on this call.

- Host: Thomas Williams
- Duration: 30 min
- Location: Cal Video
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/edgeaspect.com/scoping
- Event type id: 7891877

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7891877&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": 7891877,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "business-name": "…",
    "team-size": "…",
    "email-platform": "…",
    "notes": "…",
    "reason": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `business-name` (Business name), `team-size` (How many people use a computer or email for work?), `email-platform` (What email do you use for work?)
- Optional fields: `notes` (Additional notes), `guests` (Add guests), `reason` (What made you reach out?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.