# OpenFront Intel – Cal.com booking page

> OpenFront Intel is an independent, player-maintained resource hub for OpenFront.io. It turns versioned data from the OpenFrontIO source repository into searchable references and practical guidance on game mechanics, units, structures, maps, updates, and strategy. It helps players make better decisions through clear explanations and source-backed data. OpenFront Intel is not operated, approved, or endorsed by the official OpenFront project.

Website: https://openfront.fyi/

Booking page: https://cal.com/gradley-decuir-9og5sl

## Event types

- [30 分钟会议](https://cal.com/gradley-decuir-9og5sl/30min): 30 min, confirmed instantly, event type id 6706957. Details: https://cal.com/gradley-decuir-9og5sl/30min.md
- [15 分钟会议](https://cal.com/gradley-decuir-9og5sl/15min): 15 min, confirmed instantly, event type id 6706955. Details: https://cal.com/gradley-decuir-9og5sl/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