MoonPay Announces Open Wallet Standard for AI Agents

MoonPay, a global financial technology company, announced the Open Wallet Standard on March 23, an open-source protocol designed to enable AI agents to securely hold assets, sign transactions and execute payments across multiple blockchain networks. The framework addresses longstanding fragmentation in wallet technology by providing a unified interface that keeps private keys protected and inaccessible to AI systems.

The standard introduces a local-first approach, where sensitive operations like key storage and transaction signing occur entirely on the user's device. Private keys are stored in an encrypted vault and decrypted only briefly in an isolated process for signing, then immediately wiped from memory. This design minimizes network interactions to just broadcasting signed transactions, aligning with security best practices. Users can set policy controls, such as spending limits and transaction restrictions, to govern AI agent activities before approvals.

OWS supports eight major blockchain families, including Ethereum Virtual Machine-compatible chains, Solana, Bitcoin, Cosmos, Tron, TON and the XRP Ledger. It uses a single seed phrase to derive accounts across these...