# 15-minute call with Ryden Myers

> A short call to work out whether your situation is the kind of thing that can be fix-priced. I'll ask what your consultants spend time on that never bills, and where the same information gets typed into two systems. If it looks like a bounded workflow, I'll tell you what a pilot would cover and what it would cost. If it doesn't, I'll tell you that instead. I'll ring the number you leave. No deck, no screen share, no sequence afterwards unless you ask for one.

- Host: Ryden Myers
- Duration: 15 min
- Location: Attendee phone number
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/ryden-virium/intro
- Event type id: 6782273

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6782273&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": 6782273,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "location": {
    "type": "attendeePhone",
    "phone": "…"
  },
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is required: `location.phone` is the attendee’s own.