Sygnum Bank Completes First Swiss AI Agent-Driven On-Chain Transactions with Human-in-the-Loop

Finextra·medium signal

Swiss digital asset bank Sygnum became the first Swiss bank to execute AI agent-driven live on-chain transactions. The system uses plain-text client instructions to independently plan, prepare, and execute multi-step blockchain transactions while the AI agent reviews smart contracts and flags risks before each step. Private keys never leave the client's self-custodial wallet device — a human-in-the-loop design that demonstrates how regulated financial institutions can deploy agentic AI while maintaining custody controls.