# Noah O'Brien – Cal.com booking page

> Full-stack software engineer building production C#/.NET, React, and Azure systems. Through O'Brien Software LLC, I build custom web apps, add AI features grounded in your data, and make slow, fragile systems fast and dependable.

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

## Event types

- [Role chat](https://cal.com/noahobrien/role-chat): 30 min, confirmed instantly, event type id 7428357. A conversation about a role on your team. Details: https://cal.com/noahobrien/role-chat.md
- [Project intro](https://cal.com/noahobrien/project-intro): 30 min, confirmed instantly, event type id 7428356. 30 minutes on your goals, constraints, and timeline. Details: https://cal.com/noahobrien/project-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