# Demo with Marc Peters

> Interactieve demonstratie van Corsa, gericht op de functionele mogelijkheden, gebruiksgemak en toepasbaarheid binnen de organisatie. Ruimte voor vragen, toelichting op specifieke use cases en verkenning van vervolgstappen.

- Host: Marc Peters
- Duration: 60 min
- Location: MS Teams, In Person (Attendee Address)
- Host time zone: Europe/Amsterdam
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/marc-peters-bct/demo
- Event type id: 157825

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=157825&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": 157825,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "phone": "…",
    "technologie": "…",
    "eisenwensendemo": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Naar welk e-email adres mag de afspraakbevestiging verstuurd worden?), `phone` (Op welk telefoonnummer kan ik je bereiken?), `technologie` (Welke technologie wenst u gedemonstreerd te zien?), `eisenwensendemo` (Wat wilt u in de demo terugzien?)
- Optional fields: `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.
- `location` is optional; without it the booking uses the event’s first location.