BIS - Project Rosalind: Building API Prototypes For Retail CBDC Ecosystem Innovation

Project Rosalind is an experiment exploring application programming interfaces (APIs) for retail central bank digital currency (CBDC). The project is based on a two-tier model representing a public private partnership. At the centre of this architecture is an API layer, which connects public and private infrastructures. The API layer offers a set of standardised functionalities to enable different systems to interoperate. The project explored how central banks could address the need for a universal and extensible API layer for retail CBDC payments. Collaborating with the private sector, the project also explored what the building blocks of a CBDC ecosystem would be and how the APIs could support innovation.

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