MoonPay Launches the Open Wallet Standard

We’re proud to announce the launch of the Open Wallet Standard, an open-source standard that gives AI agents a secure, universal way to hold value, sign transactions, and pay for services across every major blockchain, without ever exposing a private key.

This is the latest step in a deliberate shift at MoonPay toward AI-native infrastructure. Over the past year, we’ve moved from on-ramp APIs to MoonPay CLI to MoonPay Agents with Ledger-secured hardware signing – the first agent-focused wallet to support hardware-backed transaction approval. Each step has given AI agents more direct, programmable access to the financial layer. The Open Wallet Standard makes that infrastructure available to every agent, every framework, and every chain.

The standard is available today on GitHub, npm, and PyPI, with contributions from over 15 organizations spanning every layer of the industry including PayPal, OKX, Ripple, Tron, TON Foundation, Solana Foundation, Ethereum Foundation, Base, Polygon, Sui, Filecoin Foundation, LayerZero, Dflow, Uniblock, Virtuals, Arbitrum, Dynamic, Allium, Simmer.Markets, and Circle.

The following is an overview of the Open Wallet Standard. For full details, read our and visit