# Sergio Barrera – Cal.com booking page

> Hi! I'm Sergio,
Have a web project or an exciting web prototype in mind you want to build?
I'll be happy to listen and discuss ideas, budget and basic requirements to create your own web application for business, education or non-profit org.
Go ahead schedule some time to chat and find out more about your project.
Looking forward to meet with you, Best.

Booking page: https://cal.com/sergdb24

## Event types

- [30 Min Meeting](https://cal.com/sergdb24/30min): 30 min, confirmed instantly, event type id 1075414. Details: https://cal.com/sergdb24/30min.md
- [15 Min Meeting](https://cal.com/sergdb24/15min): 15 min, confirmed instantly, event type id 1075413. Details: https://cal.com/sergdb24/15min.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