# Discovery Call (20 min) with Christopher Ross

> A 20-minute intro call. Bring a project, a problem, or a "is this even possible" question. If we're a fit, we'll talk next steps. If we're not, I'll point you at someone who is.

- Host: Christopher Ross
- Duration: 20 min
- Location: Cal Video
- Host time zone: America/Toronto
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/thisismyurl/20mins
- Event type id: 5570109

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5570109&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": 5570109,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "company": "…",
    "website": "…",
    "worth_your_time": "…",
    "how_found": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `company` (What's your company or organization?), `website` (What's the website you'd like me to look at before we talk?), `worth_your_time` (In one or two sentences, what would make this 20 minutes worth your time?), `how_found` (How did you find me?)
- Optional fields: none
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- A successful response is a pending booking request.