Abstract. In this demo paper we present the prototype of our fault injection testbed generator. Our tool empowers engineers to generate emulated SOA environments and to program fault injection behavior on diverse levels: at the network layer, at the execution level, and at the message layer. Engineers can specify the structure of testbeds via scripts, attach fault models, and generate running testbed instances from that. As a result, our tool facilitates the setup of customizable testbeds for evaluating fault-handling mechanisms of SOA-based systems.