List Categories
Fetch Article categories. The response includes both top-level categories and subcategories; use parent to reconstruct the hierarchy, or filter with parent_category / root_only.
Usage
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Query Parameters
Fields to expand into full objects. Example: ?expand[]=assignee_admin&expand[]=tags
The current page
Number of results retrieved per page.
Return only categories whose parent matches this UID. Useful to fetch the direct children of a given category. Cannot be combined with root_only.
When true, return only top-level categories (those without a parent). Cannot be combined with parent_category.

