# Sites That Get Calls – Cal.com booking page

> Custom website builder for local service businesses, built to get you found on Google and keep your phone ringing.

https://www.sitesthatgetcalls.com

Booking page: https://cal.com/sitesthatgetcalls

## Event types

- [Onboarding](https://cal.com/sitesthatgetcalls/onboarding): 30 min, confirmed instantly, event type id 6261874. Onboarding call https://www.sitesthatgetcalls.com Details: https://cal.com/sitesthatgetcalls/onboarding.md
- [Intro Call](https://cal.com/sitesthatgetcalls/intro): 15 min, confirmed instantly, event type id 6261873. Quick intro call https://www.sitesthatgetcalls.com Details: https://cal.com/sitesthatgetcalls/intro.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction