You can get PublishPress Authors information via the WordPress API. This is a useful feature that allows you to integrate PublishPress Authors with other plugins.

You can see the API integration at a link such as this one. The content of the API looks like this:

“authors:[{“term_id”:2866,“user_id”:2,“is_guest”:0,“slug”:“steve”,“display_name”:“Steve Burge”,“avatar_url”:“”}]

Here's that same information in a more readable format:

“authors”: [
    “term_id”: 2866,
    “user_id”: 2,
    “is_guest”: 0,
    “slug”: “steve”,
    “display_name”: “Steve Burge”,
    “avatar_url”: “”

Dealing with Guest Authors #

PublishPress Authors stores all authors as taxonomy terms, so Guest Authors will not have a Term ID but not a User ID. You can query posts from guest authors via the Rest API by adding the ppma_author parameter to your request.

For example: /wp-json/wp/v2/posts?ppma_author=118 will query post by any author, including guest authors, with the Term ID of 118.