Swift updates on experimental CBDC connector for central and commercial banks

Swift announced further progress on its experimental solution for interlinking Central Bank Digital Currencies (CBDCs), reporting that 18 central and commercial banks found “clear potential and value” in the API-based CBDC connector after a comprehensive review.

The cooperative published the findings of the 12-week period of collaborative sandbox testing, in which almost 5,000 transactions were simulated between two different blockchain networks and with existing fiat-based payment systems. Central and commercial bank participants expressed strong support for the solution’s continued development, noting that it enabled seamless exchange of CBDCs, even those built on different platforms.

Tom Zschach, chief innovation officer at Swift, said in a statement: “Our experiments have shown the critical role that Swift can play in a financial ecosystem in which digital and traditional currencies co-exist. Our API-based CBDC connector has been proven to be robust across almost 5,000 transactions between two different blockchain networks and traditional fiat currency, and we’re delighted to have the support of our community in developing it further. Many participants have made clear their desire for continued collaboration on interoperability, and this is particularly pleasing.”

Over the coming months Swift will develop a beta version of the solution for payments that can be tested further by central banks. A second phase of sandbox testing will also be held, in which the Swift community can collaborate further with a focus on new use cases, including in securities settlement (such as cross-asset exchange), trade finance, and conditional payments.

Sandbox participants included the Banque de France, the Deutsche Bundesbank, the Monetary Authority of Singapore, BNP Paribas, HSBC, Intesa Sanpaolo, NatWest, Royal Bank of Canada, SMBC, Société Générale, Standard Chartered and UBS. An additional four central banks were observers, providing input and feedback without participating in the sandbox. Participants processed a total of 4,736 transactions between the Quorum and Corda blockchain networks, and between Corda and a fiat currency.

Bruno Mellado, global head of Payments and Receivables at BNP Paribas, said in a statement: “As new clearing alternatives arise with CDBCs, it is important that we as a community leverage the safe and transparent utilities and standards built together with Swift. This paper shows the path to an industrial approach to access new and innovative ways to transact between parties.”

Lewis Sun, global head of Domestic and Emerging Payments and Global Payments Solutions at HSBC, said in a statement: “Interoperability is key to realising the potential of CBDCs to deliver real-time cross-border payments. While interest in CBDCs is growing, so is the risk of fragmentation as a widening range of technologies and standards is being experimented with. Our continuing collaboration with Swift, central banks and other commercial banks provides an invaluable platform to innovate solutions that can bring about faster, cheaper and more secure cross-border payments.”

Stefano Favale, executive director at Intesa Sanpaolo, said in a statement: “When it comes to CBDCs, interoperability becomes a key enabler to avoiding liquidity traps and creating a network effect. We truly believe that Swift, through its experience and capabilities, is the natural market-neutral candidate to support future digital asset developments.”

Lee McNabb, head of Payments Strategy & Research at NatWest, said in a statement: “Collaborating with central banks, Swift and peers has allowed participants to share valuable lessons, as well as our own experiences at NatWest. We believe collaboration and supporting experiments such as this yield promising benefits, and it is a tangible example of how purpose led firms can work together to harness the potential of new technologies and support the industry to deliver instant and frictionless cross-border transactions.”

Isabelle Poussigues, global head of Cash Clearing Offer at Société Générale, said in a statement: “Our participation in this Swift CBDC sandbox allowed us to concretely envision what CBDC / CBDC and CBDC / fiat currency interconnection solutions could be and the challenges they bring, while taking advantage of both the existing Swift infrastructure well known for its security and its robustness and the opportunities Swift’s enhanced platform can provide.”

David Rego, global head of Payments at Standard Chartered, said in a statement: “An open, interoperable architecture is essential for secure, frictionless, and evolving cross-border payment flows in the digitisation of currencies. Standard Chartered’s participation in this sandbox underscores our commitment to innovation, and to bringing future-ready capabilities to our clients.”

Read the full report

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