With the Users API, you can obtain information from a collection of users simultaneously. Each element beneath the Users Collection will be a User Resource

Any sub-resource valid for a user is a valid sub-resource under the users collection.

Any sub-resource for a collection of users is extracted using a URI like:

/users;use_login=1/{sub_resource}

Multiple sub-resources can be extracted from users in the same URI using a format like:

/users;use_login=1;out={sub_resource_1},{sub_resource_2}

/users;field={field_name1},{field_name2}