The United States (U.S.) Army Training and Doctrine Command (TRADOC) Pamphlet 525-3-1 describes the concept of how Multi-Domain Operations (MDO)-capable Army forces, as part of the Joint Force, fight across all domains (land, sea, air, space, and cyberspace), the electromagnetic spectrum (EMS), and the information environment (IE). To achieve such an MDO-capable Army, the live, virtual, constructive, and gaming (LVC&G) training systems that the Army uses to train its forces must be able to replicate this emerging operational environment. However, the Army’s current LVC&G systems are not readily equipped to incorporate the actions and effects within and across the cyberspace domain, the EMS, and the IE. Our work developing the Cyberspace Battlefield Operating System Simulation (CyberBOSS) focuses on facilitating the representation and federation of cyberspace elements into existing and future LVC&G systems. Recent efforts have provided a framework to model cyberspace effects across federated systems. We established an approach for the development, registration, and management of cyberspace effects models as a service within the CyberBOSS ecosystem. There are three main concepts in the cyberspace effects service approach. First, we provide an architecture that allows for the incorporation of effects models that can be requested, instantiated, and provided as services. Second, we formalize a protocol and data model for control and status of these loosely coupled modeling services. Third, we provide a set of typical cyberspace effects models as exemplars. This paper describes how the CyberBOSS ecosystem provides these cyberspace effects modeling services using a loosely coupled effects server; a protocol for federated systems to request cyberspace effects from the service; visualization options for those effects within the environment; and how CyberBOSS clients may allocate, control, and obtain information from the cyberspace effects models.