# Foundation Roadmap Call with Ishan Vats

> You're running on memory - answers in people's heads, work in scattered spreadsheets and chats. On this free 30-minute call we'll map your foundation: the one workspace to build first, what to migrate, and the highest-ROI fix to start with. You'll leave with a clear next step whether or not you hire us. If we're not the right fit, we'll tell you and point you in the right direction.

- Host: Ishan Vats
- Duration: 30 min
- Location: Google Meet
- Host time zone: Asia/Kolkata
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/ivconsulting/foundation-roadmap-call
- Event type id: 5923968

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5923968&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": 5923968,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "company_website": "…",
    "team_size": "…",
    "current_tech_stack": "…",
    "bottleneck": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `company_website` (Company / website), `team_size` (Team Size)
- Optional fields: `current_tech_stack` (What tools are you running on today?), `bottleneck` (What's the single biggest bottleneck right now?), `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.