# 15 min intro with Mike with DevFinite

> A quick call with Mike Colbourne to find your first workflow. Bring the thing that slips most, whether that is calls, the inbox, quotes or paperwork, and we will sketch where to start. We meet on Microsoft Teams, and no prep is needed.

- Host: DevFinite
- Duration: 15 min
- Location: MS Teams
- Host time zone: America/Edmonton
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/devfinite/intro
- Event type id: 7751675

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7751675&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": 7751675,
  "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.