MetaMask Unveils Self-Custodial Agent Wallet for Autonomous AI Agents

MetaMask has launched Agent Wallet, a self-custodial tool designed for autonomous AI agents to trade across decentralized finance (DeFi) without compromising user control. The wallet runs transactions through security checks, including simulation and threat scanning, to prevent unintended actions or malicious behavior.

The company unveiled the wallet as a way for AI agents to autonomously swap tokens, trade perpetuals, and tap DeFi protocols across Ethereum-compatible chains and Hyperliquid. Approximately 200 users have joined an early access program, with wider availability set for summer.

MetaMask's senior director of product, Zhen Yu Tong, emphasized that the infrastructure question cannot wait while agents are already moving and spending real money. He noted that prompt injection, where rogue instructions hijack a model, remains an unsolved research problem rather than a bug that gets patched once.