MoonPay Launches Open Wallet Standard for AI Agents

TLDR

• MoonPay launched the Open Wallet Standard as an open-source framework for AI agent wallets.
• The standard provides a secure and universal interface for managing crypto funds across multiple blockchains.
• More than 15 organizations, including PayPal and Circle, support the initiative.
• The framework prevents AI agents from directly accessing private keys during transactions.
• MoonPay released the code under an MIT license on GitHub, npm, and PyPI.

MoonPay launched the Open Wallet Standard on March 23 to standardize how AI agents use crypto wallets. The company released the framework as open source under an MIT license. The standard defines secure methods for wallet creation, key management, and transaction signing across multiple blockchains.

MoonPay Introduces Open Wallet Standard for Cross-chain Agents

MoonPay published the Open Wallet Standard on GitHub, npm, and PyPI. The framework gives AI agents a universal interface for holding funds and signing transactions. It also prevents agents from directly accessing private keys during operations.

The company said more than 15 organizations back the release. Supporters include PayPal, OKX, Ripple, Circle, the Ethereum Foundation, and the Solana Foundation. MoonPay CEO Ivan Soto-Wright said, “The agent economy has payment rails, and it did not have a wallet standard.”

MoonPay designed the standard to support EVM-compatible chains such as Ethereum, Base, Polygon, and Arbitrum. It also supports Solana, Bitcoin, TON, Tron, and Sui networks. The company confirmed that developers can freely use and modify the code under the MIT license.

MoonPay built the framework after launching MoonPay Agents in February 2026. That product allowed AI agents to access wallets through a command-line interface. Earlier in March, MoonPay integrated Ledger hardware signing into its agent stack.

AI Agent Wallet Activity Expands Across Crypto Networks

MoonPay reported that more than 340,000 on-chain wallets belonged to AI agents in the first quarter of 2026. The company said many agent frameworks created separate key management systems. As a result, developers often store private keys in environment variables or plaintext files.

The Open Wallet Standard addresses that issue by separating authorization from key custody. Under the model, an agent can request a payment without holding the cryptographic secret. MoonPay stated that this structure reduces direct exposure of private keys.

Industry participants joined the contributor list for the framework. Contributors include Circle, the Ethereum Foundation, the Solana Foundation, the TON Foundation, and the Filecoin Foundation. LayerZero, Virtuals, Dynamic, Allium, Dflow, Uniblock, and Simmer. Markets also support the initiative.

Market data shows the AI-crypto sector could grow from $5.1B in 2025 to $55.2B by 2035. Research estimates suggest AI agents may handle 30% of crypto transactions by 2035. Stripe and Tempo also launched an AI-focused micropayment platform days before MoonPay’s announcement.

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