# Daniel Berigoi | Wingravity – Cal.com booking page

> Co-founder and CTO at Wingravity. I've been shipping web and mobile products end-to-end since 2017, mostly React, React Native, Node.js, and TypeScript, for startups, scale-ups, and healthcare teams. Book a call and tell me what you're building.

Booking page: https://cal.com/daniel-berigoi

## Event types

- [Project Intro Call](https://cal.com/daniel-berigoi/project-intro): 30 min, confirmed instantly, event type id 6251162. A 30-minute call with the founders to figure out if we're a fit and what your project might look like. Bring whatever you have: a sketch, a Figma file, a brief, or just an idea. Details: https://cal.com/daniel-berigoi/project-intro.md
- [90-day CTO Intro Call](https://cal.com/daniel-berigoi/cto-intro): 30 min, confirmed instantly, event type id 6251161. 30 minutes. You tell me where you are, I tell you honestly whether the 90-day engagement fits. If it doesn't, you'll leave with a pointer to what does. Details: https://cal.com/daniel-berigoi/cto-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