SWIFT, a key player in global financial messaging, has recently embarked on testing on-chain payments and messaging using Ethereum’s Layer 2 network Linea. This move signifies a deeper integration between traditional finance and blockchain technology. The project involves collaboration with more than a dozen global banks, such as BNP Paribas and BNY Mellon, and explores the utilization of a stablecoin-like token for settlement purposes.
This trial marks a significant advancement for SWIFT, which connects over 11,000 financial institutions worldwide and processes billions of messages annually. Historically, SWIFT has operated as a secure messaging service facilitating payment instructions between banks. However, the current testing phase focuses on on-chain messaging and settlement functions, with the goal of establishing a stablecoin token as a model for direct transaction settlement on blockchain infrastructure.
SWIFT has emphasized that this initiative goes beyond merely transmitting digital cash transfers, expanding its scope to encompass comprehensive on-chain activities. The blockchain experiment aims to enable direct value transfer, potentially reducing reliance on multiple intermediaries and simplifying international settlements. Linea was chosen for its zk-rollup technology, which enables low-cost, high-throughput transactions while maintaining Ethereum’s security standards. Additionally, Linea’s design prioritizes data privacy through advanced cryptographic proofs, a crucial feature for banks navigating stringent compliance requirements.
While the project may take several months to fully materialize, industry insiders view it as a significant technological leap forward for the interbank sector. A banking source described it as a “significant transformation” for international payments, which currently rely on intermediaries and outdated infrastructure. This collaboration with Linea builds on SWIFT’s previous ventures in blockchain interoperability, including partnerships with Chainlink to explore cross-chain communication solutions.
In a previous series of trials conducted in August 2023, SWIFT investigated how tokenized value could be transferred across public and private blockchains, aiming to facilitate the expansion of tokenized asset markets and enhance global scalability. This project underscores Ethereum’s pivotal role in financial innovation, with Linea, developed by Consensys, positioned as a bridge between traditional finance and decentralized systems, leveraging Ethereum’s security features for efficient settlement processes.
Stablecoins are gaining traction in mainstream finance, with the market surpassing $230 billion in value, dominated by Tether (USDT) and Circle (USDC). Their rapid adoption is driven by their speed and cost advantages, settling transactions instantly at minimal fees compared to traditional payment methods like SWIFT or wire transfers. Regulatory developments, such as the first federal stablecoin law in the U.S., are reshaping the sector, prompting banks to consider launching their own tokens.
Moreover, big tech companies like Apple, Airbnb, and Uber are exploring stablecoin integration, while Google has announced stablecoin support in its AI payment framework developed in collaboration with Coinbase and the Ethereum Foundation. Institutional infrastructure is also evolving, with firms like Fireblocks launching a stablecoin payments network for enterprise cross-border transactions.
These developments indicate a shift towards a financial landscape where digital tokens pegged to fiat currencies coexist and potentially compete with traditional banking systems. SWIFT’s collaboration with Ethereum’s Layer 2 network Linea and the broader adoption of stablecoins signal a significant step towards mainstream adoption of blockchain technology in the financial sector.

