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France Tests CBDC Flows With Singapore Using Automated Liquidity Pool
Running on JPMorgan’s Onyx blockchain, it was the first cross-border CBDC transaction to use automated-market-making smart contracts.

The Banque de France (BdF) has tested a cross-border central bank digital currency (CBDC) transaction with Singapore, marking the first use of a smart contract–based, automated liquidity pool for the digital EUR/SGD currency pair.
The French central bank worked with the Monetary Authority of Singapore for the experiment, one of the last in the bank’s wholesale CBDC sandbox program that finishes this autumn. It was executed using a permissioned version of Ethereum called Quorum, developed by JPMorgan.
In the context of wholesale – or bank-to-bank – CBDC transactions, cross-border payments without slow and costly intermediation is something of a Holy Grail. Cutting down on middlemen lessened the number of contractual arrangements and the Know Your Customer burden, Banque de France said.
Read more: Bank of France Carries Out Fifth CBDC Experiment With BNP Paribas, Euroclear
JPMorgan’s blockchain-based Onyx suite of applications, which includes JPM coin, uses a system of automated digital contracts of the sort that have made areas like decentralized finance (DeFi) explode in the public arena.
The CBDC automated liquidity pool and market-making service for EUR/SGD currency pairs could be scaled up to support the participation of multiple central banks and commercial banks in different jurisdictions, BdF said. The use of smart contracts automatically managed the EUR/SGD exchange rate in line with real-time market transactions and demands, it said.
Ian Allison
Ian Allison is a senior reporter at CoinDesk, focused on institutional and enterprise adoption of cryptocurrency and blockchain technology. Prior to that, he covered fintech for the International Business Times in London and Newsweek online. He won the State Street Data and Innovation journalist of the year award in 2017, and was runner up the following year. He also earned CoinDesk an honourable mention in the 2020 SABEW Best in Business awards. His November 2022 FTX scoop, which brought down the exchange and its boss Sam Bankman-Fried, won a Polk award, Loeb award and New York Press Club award. Ian graduated from the University of Edinburgh. He holds ETH.
