Embodiments relate to systems and methods for the delivery of user-controlled resources in cloud environments via a resource specification language wrapper. In embodiments, the user of a client machine may wish to contribute resources from that machine to a cloud-based network via a network connection over a limited or defined period. To expose the user-controlled resources to one or more clouds for use the user may transmit a contribution request encoding the user-controlled resources in a specification language wrapper, such as an XML (extensible markup language) wrapper. The specification language wrapper can embed the set of user-controlled resources, such as processor time, memory, and/or other resources, in an XML or other format to transmit to a marketplace engine which can place the set of user-controlled resources into a resource pool, for selection by marketplace clouds. The specification language wrapper can indicate access controls or restrictions on the contributed resources.