The automotive sector is in urgent need of seamless, high-performance connectivity for vehicle applications across fragmented network environments. Automotive OEMs require consistent low-latency access. But disparate network interfaces and non-standardized service layers hinder integration, raise costs, and delay innovation. To solve the issue, this Catalyst introduces a federated model where CSPs expose network capabilities via standardized APIs. To do so, it uses the GSMA Open Gateway framework and TM Forum assets. In this project, a global system integrator (GSI) acts as an intermediary between CSPs, OEMs, and technology vendors. This simplifies orchestration and automating resource allocation through a unified, reusable architecture. The solution consists of a centralized portal, managed by the CSP as a federation broker. It provides OEMs with real-time visibility into multi-operator edge/MEC resources. This allows applications to be deployed based on optimal location, performance, and availability—without the OEM needing to manage infrastructure or network topology. As vehicles move across geographies, APIs coordinate handover and maintain service continuity using east-west boundary interfaces (E/W-BI). The result is a scalable solution that reduces time-to-market and development costs while supporting new revenue opportunities for CSPs. Key performance indicators include cost reduction, faster deployment, improved operational efficiency, and enhanced application performance through low-latency connectivity. Additionally, optimized edge/MEC usage reduces energy consumption, supporting sustainability goals. By bridging fragmented infrastructure with a service-aware, standardized interface model, this Catalyst transforms how vertical industries access telecom capabilities. It enables OEMs to innovate with confidence and CSPs to monetize their networks through a federated, future-ready architecture. This is a leap towards scalable, cross-network service enablement—providing measurable business value and setting a new standard for telecom-automotive collaboration.