I think it would great to have API access to all the functions in PJ. Interfacing with the WYSIWYG editor can get clumsy and it's not efficient when you want to make submissions in bulk.
Functions that would be great to have API for include submitting post, checking offers with their respective site metrics (PR..etc), approving offer and getting the final public link..etc.
I'm not a programmer so not sure if any of this is outside the realm of development, but just what i picture in my head. Would be very helpful for those advertisers needing to submit in bulk on a regular basis so we could tie PJ to our own software for a streamlined process.
This sounds like a good addition to our long term road map so that our larger advertisers can better integrate PostJoint into their workflow.