# Daniel Dunderfelt – Cal.com booking page

> Freelance full-product developer from Finland.

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

## Event types

- [Introduction meeting](https://cal.com/danieldunderfelt/intro): 15 min, confirmed instantly, event type id 638117. Hello! Nice to meet you. How can I help? Details: https://cal.com/danieldunderfelt/intro.md
- [CTO as a Service - 30 Min](https://cal.com/danieldunderfelt/cto30): 30 min, requires the host’s confirmation, paid, event type id 638118. 30 minutes with your new CTO, to discuss any technical topic. Details: https://cal.com/danieldunderfelt/cto30.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