does an affiliate offer api exist for big networks?



All networks based on CAKE like A4D have very robust API's. You can do all the things mentioned. They're built for mailing platforms that auto pull in everything. But you can use them for whatever.
 
I posted about this on another forum recently. HasOffers has a pretty straightforward setup. You can output the info to XML.

Still have not figured out how to get the Cake API to work. Had one network tell me it's not possible. As mentioned above, Cake is pretty robust, and I'd imagine it's doable.

At this point, I continue to pull the Cake links manually...