# Nick Clarke – Cal.com booking page

> I'm a Founder and AI-agent builder based in Singapore. I'm focused on Agents that operate real workflows.

Booking page: https://greywing.cal.com/nick

## Event types

- [Crew change pricing walkthrough](https://greywing.cal.com/nick/crew-change-pricing-walkthrough): 25 min, confirmed instantly, event type id 7605936. A short call to walk through how Greywing finds the most efficient port and flights for a crew change. Bring the details of an upcoming crew change (ports, dates, ranks, nationalities) and we'll price it together. Details: https://greywing.cal.com/nick/crew-change-pricing-walkthrough.md
- [Greywing Discovery Call](https://greywing.cal.com/nick/greywing-discovery-call): 25 min, confirmed instantly, event type id 7087245. A quick catch-up with Nick Clarke @ Greywing. Details: https://greywing.cal.com/nick/greywing-discovery-call.md
- [Greywing Discussion](https://greywing.cal.com/nick/greywing-discussion): 25 min, confirmed instantly, event type id 5930942. A quick catch-up with Nick Clarke @ Greywing. Details: https://greywing.cal.com/nick/greywing-discussion.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