| addressable_for | string | Since 1.1.1 Returns groups that can be valid recipients of news items |
| ancestor | EID | Since 1.1.5 Returns subgroups (all descendants) of the specified ancestor |
| admin | EID | Returns only groups the specified user is administrator for |
| include_hidden | boolean | Since 1.1 Include hidden groups in the result |
| include_secret | boolean | Include secret groups in the result |
| invitee | EID | Returns only groups the specified user has pending invitations for |
| label | EID+ | Since 1.1.7 Returns the groups under one or more labels |
| modified_since | datetime | Since 1.0.13 Returns only groups that have been modified since the specified date and time. Addition or removal of a member also counts as a modification. |
| parent | EID | Since 1.1 Returns subgroups (direct children) of the specified parent |
| permission | string | Since 1.4.1 Returns the groups where a certain permission is granted |
| q | string | Return only groups whose names match the specified terms |
| role | string | Since 1.0.26 Returns groups in which the user, listed below, has a specific role |
| scope | string | Since 1.1 Limits the returned groups to one of the following scopes: my_groups, relevant_groups or network |
| type | string+ | Since 1.1 Returns the group whose type matches the specified type. Type basic can be used to exclude all enterprise type groups. |
| user | EID | Returns only groups the specified user is member of |