Chainlink is enabling financial institutions to integrate their systems and key-signing infrastructure with the Swift blockchain ledger through its Chainlink Runtime Environment (CRE). This integration allows banks to maintain control over transaction authorization keys and adopt continuous tokenized payment workflows while preserving existing security governance and approval protocols. The Swift ledger facilitates cross-bank fund transfers using tokenized deposits, extending settlement capabilities to overnight and weekend periods. Final settlement continues to be executed through established mechanisms such as real-time gross settlement (RTGS) systems. Announced at Sibos 2025, the ledger has already connected more than 11,500 financial institutions across over 200 markets worldwide.