Like the fictional brain in a vat, artificial minds are useless if they are not connected to the real world. Embodied cognitive systems require bodies and worlds where they can interact, explore, and learn. An open framework which connects artificial minds to devices in the real or virtual worlds is therefore of paramount importance. This undertaking involves both building the framework, a mind server, and building cognitive systems, minds, which can be instantiated on demand to control mobile devices, computers, or wireless robots. Let's build one.