We're in the middle of building out something similar with Playa - http://getplaya.com/ http://getplaya.com/ (or track our progress here: https://baqqer.com/pro

We're in the middle of building out something similar with Playa - http://getplaya.com/ http://getplaya.com/ (or track our progress here: https://baqqer.com/projects/playa/ https://baqqer.com/projects/playa/) - An Open Service Exchange for Autonomous Intelligent Agents I think it comes down to a little training from the user, finding out where the user is price sensitive, etc.