In this paper we present a research and a pilot implementation of a monitoring architecture for hybrid computer cloud. The hybrid cloud consists of three different cloud infrastructures: VMware, HyperV and OpenStack. The ongoing research focuses on the selection of a standardized set of monitoring features and an efficient architecture to support the monitoring itself. The paper discusses two approaches to interconnect monitoring in hybrid clouds including all necessary interfaces. In the pilot implementation we used a less standardized approach due to time bounds on the project. Furthermore, we implemented two monitoring systems, where the first one was just a poof of concept, while in the other one we implemented a complete monitoring infrastructure for a hybrid cloud. Moreover, on top of the infrastructure we built a fully operational support for SLAs.