The Open API MEF.DEV is a development, hosting and application management platform that can help operators accelerate their transformation of legacy BSS functions. The platform supports domain-driven design and business analysis with database and model-first code generation capability and unified development process. It provides an open standards-based approach to build software. The MEF.DEV has wrapped the WideCoup BSS core for managing into multi-vendor hybrid infrastructure and includes assets such as open APIs, information models, and support for DevOps deployment approach. There are vary ready-to-use integration with multiple third-party vendors including Amdocs, Ericsson, Oracle, Nexign, SigScale and Bercut.