# Intro call with Organtis

> A 30-minute conversation to understand what you are building, who it is for, and what kind of help you need. We will talk about your mobile app, your SDK, your current stack, your timeline, and whether we are the right partner. By the end of the call, you will have a clearer answer than when you booked.

- Host: Organtis
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Istanbul
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/organtis/intro
- Event type id: 5717905

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5717905&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": 5717905,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `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.
- A successful response is a pending booking request.