Ledger, the world leader in hardware wallet security, has officially announced a groundbreaking integration with MoonPay Agents. This new feature addresses one of the most significant concerns in the burgeoning field of autonomous AI agents: financial security. As AI agents—software entities capable of executing complex tasks independently—become more prevalent in the Web3 ecosystem, the risk of unauthorized spending or smart contract exploits has grown. The partnership between Ledger and MoonPay introduces a "Human-in-the-Loop" security model, ensuring that while an AI might suggest or initiate a trade, it cannot finalize it without the human owner’s physical interaction with their Ledger device.
MoonPay originally launched its AI agent infrastructure in February 2026 to provide developers with the financial rails necessary for AI-driven commerce, gaming, and treasury management. However, the initial challenge was the storage of private keys. Traditionally, AI agents often stored keys on a local disk or in a cloud environment, making them vulnerable to "prompt injection" attacks or simple software bugs that could drain a wallet. By integrating Ledger’s hardware signer, MoonPay ensures that private keys remain offline and protected within the Secure Element chip of a Ledger Nano, Stax, or Flex device.
The technical workflow is designed to be seamless across multiple blockchains, including Ethereum, Solana, Avalanche, and Base. Through "Automatic Ledger App Switching," the AI agent can navigate between different networks to perform swaps, bridges, and transfers. When the agent is ready to execute a transaction, a request is sent to the Ledger device. The user then reviews the transaction details—such as the amount and destination address—and signs it manually.
Ian Rogers, Ledger’s Chief Experience Officer, emphasized that as a new wave of Command Line Interface (CLI) and agent-centric wallets emerges, hardware-grade security is no longer optional. MoonPay CEO Ivan Soto-Wright added that this is just the beginning, as they plan to support more hardware partners in the future. This development marks a pivotal shift in how we interact with autonomous systems, moving from blind trust in algorithms to a verified, secure partnership where humans retain ultimate authority over their digital assets.