Ledger hardware wallets can now rein in AI agents’ crypto spending, thanks to a new integration with MoonPay Agents announced Friday.
The upgrade routes agent-generated trades, swaps, and transfers through a Ledger secure signer so a human must physically approve each transaction on-device. MoonPay says that approach preserves the convenience of autonomous agents while putting a manual, hardware-backed check between an AI and on-chain funds.
“This is just the beginning,” MoonPay CEO Ivan Soto‑Wright told Decrypt. “We plan to support additional hardware wallets and look forward to collaborating with more partners across the ecosystem. Any developer building an agent that needs to move value can plug MoonPay in as the financial rail across trading, gaming, commerce, treasury, and beyond.”
Technical details
- Supported Ledger devices: Nano S Plus, Nano X, Nano Gen5, Stax, and Flex.
- Supported chains: agents can detect and interact with wallets on Ethereum, Solana, Optimism, Avalanche, and Base.
- Automatic Ledger app switching allows agents to cross networks; swaps, bridges and transfers are routed through the Ledger signer for on‑device approval.
“There is a new wave of CLI and agent‑centric wallets emerging, and these will need Ledger security as a feature, too,” Ledger Chief Experience Officer Ian Rogers said.
Why this matters
AI agents that autonomously send, receive and manage digital assets are rapidly gaining traction in crypto — projects such as Eliza Labs, Fetch AI and even teams at Coinbase are building systems that can trade and handle funds without continuous human oversight. MoonPay launched its Agents software in February to give such systems wallet access and transaction capabilities.
But autonomy carries risk. Agents have been vulnerable to cyber threats, including prompt‑injection and other attack vectors, and many current setups keep private keys stored on disk — a known security hazard. “Today, most agents with wallets just have a private key sitting on disk somewhere, and you’re already seeing those wallets get exploited, or people lose access when agents make mistakes,” Erik Reppel, head of engineering for Coinbase Developer Platform, told Decrypt earlier.
By forcing on‑device approvals, the Ledger–MoonPay integration adds a human-in-the-loop safeguard that could reduce theft and accidental losses while allowing developers to continue exploring autonomous finance use cases. MoonPay says it plans to expand hardware support and partner further across the ecosystem as agent activity grows.
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