- Ethereum, Ripple, Solana, Circle, TON, TRON and PayPal are among 21 organizations working together to support the launch of the Open Wallet Standard (OWS).
- OWS is open sourced from MoonPay for local wallet storage and signing, and is designed to enable AI agents to take advantage of agentic payment systems such as x402.
Some of the largest digital asset organizations, led by the Ethereum, Solana, and TRON Foundations, have collaborated to launch a new wallet standard for agentic AI payments.
Known as the Open Wallet Standard (OWS), it was developed by the crypto payments company MoonPay and is open source. 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 built agentic payment stacks that integrate x402, MPP and A2A. The latest is Stellar, which launched x402 earlier this month to boost AI and machine payments on the internet, as CNF reported. 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 that hit the market a week ago.
While all of these standards promote agent payments, they all assume the AI agent already has a supported wallet. These standards determine how the agent pays, not how he signs for transactions, where his private keys are stored, or how they are protected. In order for developers to use these standards, they had to build the wallet infrastructure from scratch, which was time-consuming, expensive, and introduced new security risks.
This is the market the new OWS focuses on. Moonpay founder Ivan Soto-Wright commented:
The agent economy has payment rails. It had no wallet stand. We built one, open sourced it, and now the full stack exists.
Crypto Comes Together to Launch OWS
MoonPay describes the idea behind OWS as: “one encrypted vault on your machine, one interface for each chain, and a security model where the private key is never exposed to the agent, the LLM, or any parent process.”
It will rely on one mnemonic for each supported chain, a single signing interface where the agent never sees the private key, a core written in Rust for each runtime and which is encrypted at rest and erased immediately after signing.
MoonPay says the standard needed to be open because wallet interoperability requires a shared format. As for why it has now launched OWS, the crypto payments service says it is because “the number of agents requiring wallets is growing faster than the number of wallet standards.”
MoonPay received the support of 21 major crypto organizations on OWS. These include the foundation behind the development of Solana, Ethereum and TRON (as well as the TRON DAO).
.@MoonPay just open sourced a wallet standard for AI agents, supported by 15+ contributors including @Solana, @PayPal, and @Circle
One seed phrase gives you wallets on EVM, Solana, Bitcoin, XRP and more https://t.co/jI52eyUoU6
— Solana (@solana) March 23, 2026
Sui, Polygon, PayPal, OKX, Base, the Filecoin Foundation, Allium, Arbitrum and Circle were also part of the OWS launch. Commenting on the new standard, Sam Blackshear, co-founder of Mysten Labs, the company behind the Sui Network, said:
This unified representation makes it easier for an agent to focus on the task rather than the details.