Central bank digital currencies (CBDCs) could help to deliver better cross-border payments. Nine out of 10 central banks are exploring CBDCs, both conceptually and technically, either in retail or wholesale form or both. Work on wholesale CBDCs is increasingly driven by reasons related to cross-border payments efficiency (Kosse and Mattei (2022)). The G20 has made enhancing cross-border payments a priority and endorsed a comprehensive programme in the form of a set of 19 building blocks led by the Financial Stability Board (FSB) and the BIS Committee on Payments and Market Infrastructures (BIS CPMI) to address the key challenges (BIS CPMI (2020)). As part of the more forward-looking work of the roadmap, one building block (19) considers how to factor an international dimension into the design of CBDCs. In response to the G20 call for action, the BIS Innovation Hub (BISIH) is coordinating experiments on how this can be done.