Create an automated posting site on wp and make it unique

Search for wp automtic plugin and download its free version or buy it.

Upload it manually
Create a new campaign
Feed it with rss/feedlink you want it to be importing posts from
Change where the post will land to draft
Edit imported posts and use spintax to spin the contents to change wordings with similar words, same meaning.
Now publish your post

You can set up manu API using this plugin

You can check this out. http://wprobot.net/features/

For me, it's the best one out there.