Our focus is on automating the whole content distribution process and we do not want any publishers/bloggers to publish articles manually [Although bloggers can review the article before any advertiser can post it on your blog]
We use Basic Authentication handler to enable Basic Authentication to a WordPress site. This allows us to establish a live link with your blog and whenever our advertiser want to publish any article on your blog, they can do it.
You can read more about JSON API plugin here: https://github.com/WP-API/Basic-Auth/
Since we have AUTHOR account on your blog, you can keep a track of every single article that is getting published on your blog though Pressly. We do not interfere with anything else on your blog.
Note: WP-API/Basic-Auth is a standard plugin by WordPress developers and you can download the latest plugin from their GitHub repo.