- Ethereum, Ripple, Solana, Circle, TON, TRON, and PayPal are among 21 organizations collaborating to help launch the Open Wallet Standard (OWS).
- OWS is open sourced by MoonPay for local wallet storage and signing and is designed to enable AI agents to leverage agent payment systems such as x402.
Some of the largest digital asset organizations, led by Ethereum, Solana, and the Tron Foundation, have partnered to launch a new wallet standard for agent AI payments.
Known as the Open Wallet Standard (OWS), it was developed and open sourced by crypto payments company MoonPay. It serves as a secure, local-first protocol that allows agents to store keys, manage wallets, and sign transactions on most major blockchains.
Image courtesy of MoonPay.
In recent months, dozens of blockchains have been building agent payment stacks that integrate x402, MPP, and A2A. The latest is Stellar, which released x402 earlier this month to power AI and machine payments across the web, as reported by CNF. x402 was developed by Coinbase and Cloudflare and later open sourced, while A2A (Agent to Agent) was released by Google last year. MPP, developed by Stripe, is the latest release and was brought to market a week ago.
All of these standards advance agent payments, but assume that the AI agent already has a supported wallet. These standards define how agents pay, not how they sign transactions, where private keys are stored, and how they are protected. For developers to use these standards, they had to build wallet infrastructure from scratch, which was time-consuming, expensive, and introduced new security risks.
This is the market that the new OWS is targeting. Ivan Soto-Wright, founder of Moonpay, commented:
The agent economy has payment rails. There was no standard for wallets. We built it, open sourced it, and now there’s a complete stack.
Crypto comes together to launch OWS
MoonPay explains the idea behind OWS: “One encrypted vault on the machine, one interface per chain, and a security model where the private key is never exposed to the agent, LLM, or parent process.”
It relies on a single mnemonic for each supported chain, a single signing interface where the agent never sees the private key, and a core written in Rust for each runtime that is encrypted at rest and erased immediately after signing.
MoonPay says the standards had to be open because wallet interoperability requires a shared format. As for why they are launching OWS now, the virtual currency payment service says it is because “the number of agents that require wallets is increasing faster than the number of standard wallets.”
MoonPay was backed by 21 major cryptocurrency organizations on OWS. These include the foundations behind the development of Solana, Ethereum, and TRON (and TRON DAO).
.@MoonPay has open sourced a wallet standard for AI agents with the help of over 15 contributors including @Solana, @PayPal, and @Circle.
One seed phrase gives you wallets like EVM, Solana, Bitcoin, XRP, etc. https://t.co/jI52eyUoU6
— Solana (@solana) March 23, 2026
Sui, Polygon, PayPal, OKX, Base, Filecoin Foundation, Allium, Arbitrum, and Circle also participated in the OWS launch. Commenting on this new standard, Sam Blackshear, co-founder of Mysten Labs, the company behind Sui Network, said:
This unified representation helps agents focus on the task rather than the details.
