SWIFT, the world’s largest financial messaging network, has begun working with several major banks to test on-chain messaging through Linea, an Ethereum layer-2 platform developed by ConsenSys. The initiative has drawn the participation of leading institutions, including BNP Paribas and BNY Mellon, and is also being examined as a possible foundation for a settlement token similar to stablecoins.
Banking representatives involved in the pilot suggested that the project could reshape the technological foundations of international interbank payments. However, they emphasized that tangible outcomes may take months to emerge, as the pilot is still in its early stages.
Addressing Legacy Limitations
SWIFT currently connects over 11,000 financial institutions worldwide, transmitting payment instructions without directly moving funds. Its centralized infrastructure relies heavily on intermediaries and traditional financial rails, a structure critics often associate with delays and unnecessary complexity. By turning to Linea’s zero-knowledge rollup architecture, which supports privacy-focused cryptography and faster, scalable transactions, the trial aims to explore whether blockchain can enhance messaging and settlement while maintaining compliance with global regulatory requirements.
This development comes as part of SWIFT’s broader strategy to embrace blockchain technology. The organization has already rolled out new rules for cross-border retail payments, targeting improvements in both speed and predictability. Moreover, starting in 2025, several global banks are expected to trial live digital asset transactions on SWIFT’s infrastructure.
Building on Previous Blockchain Pilots
SWIFT has been testing blockchain interoperability for several years. Earlier pilots demonstrated tokenized asset transfers in collaboration with UBS and Chainlink. The network has also been investigating global frameworks for digital asset transactions and even explored potential links with the XRP Ledger.
🚨 NEWS FLASH: SWIFT developing stablecoin and onchain messaging system with Linea. #SWIFT #Linea
— Assemble AI (@Assemble_io) September 26, 2025
Linea, which introduced its native token earlier this year, now plays a central role in a decentralized finance ecosystem valued at approximately $72 billion. By positioning itself as a scalable and compliance-ready platform, Linea aims to provide a secure environment for institutional adoption.
In a recent industry panel, SWIFT executives noted that blockchain experiments were evolving into more practical discussions about scaling. They underlined that the industry’s future would not hinge on the specific digital instruments in use—whether tokenized deposits, central bank digital currencies, stablecoins, or tokenized funds—but rather on the connectivity between systems and the value such networks deliver.
Balancing Opportunity and Challenge
Advocates of blockchain-based messaging highlight its potential to improve settlement efficiency, programmability, and transparency. However, banks continue to face significant challenges. Integration costs can be steep, while operational risks and compliance requirements related to token issuance and transaction data remain pressing.
One of the most complex barriers lies in legal recognition. Financial experts pointed out that settlement is fundamentally a legal construct rather than a purely technical matter. Aligning blockchain confirmation models with established legal frameworks will therefore be essential to scaling adoption. The need for standardized rulebooks, regulatory clarity, and jurisdictional recognition is being seen as critical to ensuring that on-chain settlements can hold up in courts.
Positioning for the Future
While widespread adoption of blockchain in interbank payments is far from guaranteed, the pilot underscores SWIFT’s intent to prepare its infrastructure for the realities of emerging digital asset markets. The initiative may play a decisive role in determining whether blockchain technology ultimately becomes an integral part of global interbank communication and settlement processes.