MoonPay Enables Ledger Hardware Wallet Signing to Secure AI Agent Payments

MoonPay has integrated Ledger hardware-wallet signing into its MoonPay Agents command-line interface (CLI), enabling users to verify and approve every AI-initiated crypto transaction on a connected Ledger device while keeping private keys offline and away from the agent.

“MoonPay introduces Ledger-secured AI crypto agents to address wallet key risks The feature allows users to verify and sign every transaction generated by an AI agent using a Ledger hardware device, ensuring private keys never leave the hardware signer”

CoinDesk

This update applies specifically to MoonPay’s CLI wallet and is already available in the software, which MoonPay and partners present as the first agent-focused CLI wallet to offer full hardware signing for agent-generated transactions.

CoinDesk

The integration follows a human-in-the-loop security model: MoonPay’s agents prepare and execute workflows, but users must authorize each immutable transaction on-device, keeping custody separated from automation and reducing the risk of autonomous misuse.

MoonPay and reporting emphasize that private keys never leave the Ledger signer and that approval is required on-device for actions the agent proposes.

The Crypto Times

Implementation details show broad device and multi-chain support: users connect supported Ledger signers (Ledger Nano S Plus, Nano X, Gen5, Stax, or Flex) via USB to the MoonPay CLI, and the agent can automatically detect wallets across networks such as Base, Solana, Arbitrum, Polygon, Optimism, BNB Chain and Avalanche.

Swaps, bridges and transfers are routed through the Ledger signer for on-device approval.

MoonPay’s integration leverages Ledger’s Device Management Kit to enable secure signing in agent workflows.

The update targets autonomous crypto agents that execute trading strategies, rebalance portfolios and move assets across chains without constant human input.

MoonPay and coverage position the Ledger signing as a safeguard for agentic workflows such as portfolio rebalances, on-chain swaps and bridging, where the agent spots opportunities but requires user confirmation before funds move.

The Crypto Times

Industry observers framed the integration as a notable step for agent security and a potential standard for agent-centric wallets: MoonPay and Ledger partners describe the CLI as the first agent-focused wallet to enable full hardware signing.

“The integration requires users to approve every transaction on-device, keeping custody separate from automation”

The Crypto Times

Ledger’s own team publicly congratulated MoonPay for leveraging the Device Management Kit, and the feature is presented as live for users to adopt now.

CoinDesk