# Mariana Hayes – Cal.com booking page

> Mariana Hayes is a passionate writer at Cosmopolitan Blog, specializing in lifestyle, relationships, and modern culture. With a keen eye for trends and storytelling, she creates engaging content that resonates with global audiences, helping readers stay informed, inspired, and connected in today’s fast-paced digital world.

Booking page: https://cal.com/mariana-hayes-yigkmb

## Event types

- [30 min meeting](https://cal.com/mariana-hayes-yigkmb/30min): 30 min, confirmed instantly, event type id 5236749. Details: https://cal.com/mariana-hayes-yigkmb/30min.md
- [15 min meeting](https://cal.com/mariana-hayes-yigkmb/15min): 15 min, confirmed instantly, event type id 5236748. Details: https://cal.com/mariana-hayes-yigkmb/15min.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