Question about the new organization filter in CalendarList:list API

Hi community,

I am reviewing the recent workspace update regarding “Secondary calendar management API enhancements” (released in June 2026):

The blog mentions:

“A new filtering option will be available in the CalendarList:list API method that restricts results to return only secondary calendars owned by the organization.”

I checked the official reference page (which shows it was last updated on June 10, 2026), but I cannot find which specific query parameter or value corresponds to this new organization filter. (I understand existing parameters like minAccessRole are for a different purpose).

Reference: CalendarList: list  |  Google Calendar  |  Google for Developers

Apologies if I missed something obvious, but could anyone please point out the exact parameter name or how to structure the request to filter by organization-owned secondary calendars?

Thank you in advance!

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