AI Agents Get Their First Debit Card for the Metaverse: MoonPay Drops the 'Keymaster' SDK

Crypto payments giant MoonPay has just open-sourced a new wallet infrastructure standard, essentially handing autonomous AI agents their first set of blockchain car keys. Now your trading bot can finally FOMO into a memecoin all by itself.

The release, available on GitHub, npm, and PyPI, builds on MoonPay's earlier rollout of 'MoonPay Agents.' Think of it as the non-custodial software layer launched in February that lets AI systems interact with wallets and execute transactions programmatically—finally giving algorithms the power to rug themselves.

MoonPay CEO Ivan Soto-Wright declared, 'The agent economy has payment rails. It didn't have a wallet standard. We built one, open-sourced it, and now the full stack exists.' Translation: the on-ramp is built; the agents just need some gas money and poor impulse control.

This new standard plugs a critical hole in the so-called 'agent economy,' where AI systems are increasingly tasked with jobs like buying data, accessing APIs, or paying for compute services. Because even a large language model needs to pay its cloud bills.

By open-sourcing this wallet layer, MoonPay is trying to standardize how AI agents manage keys, sign transactions, and interact with various blockchain networks. It's the universal remote for your decentralized application, assuming your remote is a sentient piece of code with a private key.

The company was quick to clarify, 'The standard is not competing with existing protocols. It makes them more valuable. Any protocol that requires a signed transaction now has a common wallet to call.' In other words, it's not here to eat the DeFi pie, just to provide the fork.

The Open Wallet Standard (OWS) is designed as universal infrastructure, letting agents use a single wallet across protocols and chains. It supports a broad menu of ecosystems including Ethereum-compatible networks, Solana, Bitcoin, and others. One wallet to rule them all, and in the darkness bind them… to a multi-sig.

A core feature is its obsessive focus on secure key management. Private keys are encrypted and only briefly decrypted to sign transactions before being wiped from memory—like a crypto-themed Jason Bourne, forgetting its own identity after every mission.

MoonPay noted that over a dozen organizations, including heavyweights like PayPal, Ripple, Circle, Solana Foundation, and TON Foundation, have contributed to the standard. When that many suits agree on a crypto standard, you know the robots are about to get serious.