Specifying how the results should be ordered, can be achieved using the sort query option. You can use this parameter to sort the content items by fields, including create date, level, name, sort order, and update date. For each field, you can specify whether the items should be sorted in ascending (asc) or descending (desc) order. Without a sort query parameter, the order of the results will be determined by the relevance score of the DeliveryApiContentIndex for the search term.
?sort=createDate:asc/desc An option to sort the results based on the creation date of the content item in either asc or desc order.
GET /umbraco/delivery/api/v2/content?sort=name:asc&sort=createDate:asc

