This document discusses using the DMTF CIMI standard as a unified interface for multi-cloud management. It motivates the need for such an interface by noting the limitations of accessing only a single cloud provider. It then outlines requirements for the interface, including a single control point, vendor-neutral APIs, and policy-based workload placement. The document describes the DMTF CIMI 1.0 standard and the Sirocco project's development of a multi-cloud manager using this interface. Finally, it provides pointers to related projects and standards organizations.