Chainlink opens Swift blockchain ledger to banks

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Chainlink links banks to Swift

Highlights

Chainlink is connecting banks to Swift’s ledger.
Banks retain control of transaction signing keys.
The system supports 24/7 tokenized payments.

According to the press release, banks will use the Chainlink Runtime Environment, or CRE, to coordinate workflows between their own tokenized-deposit ledgers and Swift’s shared ledger. Financial institutions retain the cryptographic keys used to authorize transactions, keeping existing approval and security processes in place.

Connecting bank ledgers to Swift

The architecture separates tokenized deposits from the infrastructure coordinating payments between banks. Deposits remain on each institution’s own ledger and balance sheet, while Swift’s ledger manages the movement of funds between participating institutions.

That setup is intended to make cross-border payment instructions available overnight and on weekends, extending activity beyond conventional banking hours.Swift’s ledger does not replace the network’s existing role in financial messaging, nor does it become the final settlement venue. Settlement can still take place through established mechanisms such as real-time gross settlement systems.

CRE instead acts as an orchestration layer between a bank’s infrastructure and Swift’s ledger. The self-signing model is important for institutions because transaction authorization remains under their control rather than being delegated to an external blockchain service.

Tokenized deposits move toward wider use

Swift first announced its blockchain-based shared ledger at Sibos 2025. The infrastructure was developed with input from more than 40 financial institutions and moved from concept to activation within nine months.

Seventeen early participants are now using the ledger in pilots involving tokenized deposits across different payment scenarios. The potential distribution network is considerably larger: Swift connects more than 11,500 financial institutions and corporations across more than 200 markets.

Unlike stablecoins issued outside traditional banking systems, the deposits involved in the project remain liabilities of the banks that issue them. That structure allows institutions to experiment with blockchain-based payment coordination while retaining commercial bank money and existing settlement processes.

A bridge for round-the-clock payments

The Chainlink integration addresses one practical obstacle to broader institutional use of tokenized deposits: connecting blockchain infrastructure with banks’ existing authorization, security, and operational systems.

Its significance will ultimately depend on adoption beyond the initial pilots. But with 17 institutions already testing the Swift ledger and more than 40 involved in its development, the project offers a concrete test of whether tokenized bank deposits can support continuous cross-border payments without requiring banks to rebuild their core settlement infrastructure.

As we previously reported, Chainlink rolls out CCIP 2.0 for crypto bridge security controls.

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