A marketplace system can provide an interface to cloud management systems that allows the cloud management systems to specify desired computing resources and a value for providing those resources. The marketplace engine can provide the interface to third-party controlled systems to specify computing resources being offer to cloud computing systems. The marketplace engine can match the desired resources to the offers to provide computing resources and notify the cloud management systems and third-party controlled systems of the match. Additionally, the cloud management systems can utilize the marketplace to aid in valuing computing resources to be added to the cloud.