Crypto payments infrastructure company MoonPay has unveiled the Open Wallet Standard (OWS), an open-source framework that enables AI agents to manage funds and execute transactions across multiple blockchains. The move addresses a critical infrastructure gap that has hindered AI-crypto integration, marking a significant step toward building a functional payment stack for autonomous systems.
The Open Wallet Standard was developed with contributions from major industry players, including PayPal, the Ethereum Foundation, the Solana Foundation, Ripple, OKX, Tron, TON Foundation, and Base. This broad coalition signals strong industry consensus around the need for a standardized wallet infrastructure designed specifically for AI applications.
“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,” said MoonPay co-founder and CEO Ivan Soto-Wright in a statement. The framework addresses fragmentation issues in wallet and key management that have complicated financial operations for autonomous AI systems.
The OWS supports the x402 open payment protocol developed by Coinbase, alongside Stripe and Tempo’s Machine Payments Protocol (MPP) for session-based micropayments. It also builds on MoonPay’s earlier collaboration with Ledger, which enables hardware wallet signing for MoonPay Agents’ transactions.
Security remains a core design principle of the standard. According to MoonPay, the framework is architected so that a wallet’s private key is never exposed to agents, the LLM context, or parent applications during transactions. This approach protects users while enabling agents to conduct autonomous financial operations.
“On-chain payments originate from wallet addresses, and every chain represents them a bit differently,” explained Mysten Labs co-founder and CTO Sam Blackshear. A “unified representation” streamlines processes and allows agents to focus on high-level tasks instead of managing blockchain-specific technical details.
The launch reflects MoonPay’s deliberate shift toward AI-native infrastructure. As AI agents increasingly require sophisticated financial capabilities to operate autonomously, the company has positioned itself to provide the foundational tools this emerging sector needs.
Agentic payments have become a growing focus for crypto infrastructure developers. Coinbase launched a wallet specifically designed for AI agents with built-in guardrails, while Tempo Network, backed by Stripe, focuses on enabling AI agent payment capabilities. Sam Altman’s World has also tapped Coinbase’s protocol to verify humans behind AI agents, highlighting the broader industry momentum around autonomous financial systems.
The Open Wallet Standard represents one of the first major efforts to create interoperable infrastructure across the fragmented landscape of blockchain networks and AI frameworks. By open-sourcing the standard and securing support from competing blockchain ecosystems, MoonPay has laid the groundwork that developers across different chains can build upon.
The framework arrives at a critical moment for the nascent agent economy. As autonomous systems take on increasingly complex tasks, the ability to transact securely and efficiently across blockchains becomes essential. The OWS provides developers with standardized tools to build agentic applications without reinventing wallet management from scratch.
Developers can now access the Open Wallet Standard through MoonPay’s repositories, with documentation available for integrating the framework into their applications. The open-source approach means the standard can evolve through community contributions rather than remaining locked to a single vendor.
Industry observers view the standard as a foundational piece of infrastructure that could accelerate AI-crypto integration. As autonomous agents become more prevalent, having a common wallet framework reduces development friction and enhances security across the ecosystem.
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