# Activation Blueprint call with Anton Totomanov

> A 30-minute call with Anton. Show me your app and where you think new users get stuck I'll show you where I'd look first We'll decide together whether a 7-Day Activation Blueprint makes sense for you Nothing to prepare.

- Host: Anton Totomanov
- Duration: 30 min
- Location: Cal Video
- Host time zone: Europe/Sofia
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/greetback/activation-blueprint
- Event type id: 7307829

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7307829&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": 7307829,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "app-link": "…",
    "monthly-signups": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Work email), `app-link` (Your app or website), `monthly-signups` (New signups a month)
- 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.