# nocturnesystems – Cal.com booking page

> Nocturne Systems is a software engineering and cybersecurity company building secure, scalable digital products for modern organizations. We specialize in enterprise software, ERP systems, cloud solutions, cybersecurity, AI-powered automation, and custom application development—combining strong engineering with security-first architecture.

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

## Event types

- [Project Discovery Call](https://cal.com/nocturnesystems/30min): 30, 60, 90, 120, 150, 180 min, confirmed instantly, event type id 7097259. Let's discuss your project, current challenges, technical requirements and what are you trying to ship. We'll cover scope, architecture , timeline , existing code (if any) , and determine the best path forward. No commitment required. Details: https://cal.com/nocturnesystems/30min.md
- [15 min meeting](https://cal.com/nocturnesystems/15min): 15 min, confirmed instantly, event type id 7097258. Details: https://cal.com/nocturnesystems/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