DC4EU will aid in the development of the technical infrastructure to support the interoperability and implementation of the European Digital Identity Framework, through a two-year, large-scale, cross-border pilot of the European Digital Identity Wallet in compliance with the EU Toolbox process. Four use cases will be developed to test interoperability and scalability in the national domain and in multiple cross-border contexts to provide feedback to the European Commission and Member States for iterative updates. DC4EU aims to apply the European Union’s eIDAS trust framework with a focus on the education and social security fields.