The proliferation of radiofrequency identification systems in application domains such as supply chain management requires an IT infrastructure that provides RFID device and data management and supports application development. In this paper, we discuss the requirements towards such an infrastructure and present the freely available Accada RFID Prototyping Platform. The Accada platform manages readers, filters and aggregates RFID data, and helps to interpret the captured RFID data in an application context. Our RFID infrastructure implements the specifications defined by the EPCglobal RFID community, such as the reader protocol, the application-level-events specification and the EPCIS capture and query interfaces. We believe that this freely available RFID infrastructure will allow the research community to evaluate novel concepts and applications more quickly by significantly lowering the barrier for large-scale, real-world testing.