# Strategiegesprek with Martijn van Nes

> In 30 minuten bespreken we jouw situatie, ambities en de financiële vraagstukken die je bezighouden. Je krijgt direct een inschatting waar de grootste kansen liggen, en of Strategie InZicht de juiste partner is om die te verzilveren.

- Host: Martijn van Nes
- Duration: 30 min
- Location: MS Teams
- Host time zone: Europe/Amsterdam
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/martijn-van-nes-m6ypif/koffiegesprek
- Event type id: 6694848

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6694848&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": 6694848,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "title": "…",
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `title` (What is this meeting about?)
- Optional fields: `attendeePhoneNumber` (Phone number), `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.