MoonPay Launches Open-Source Wallet Standard for AI Agents

📋 Key Takeaways

MoonPay launches the Open Wallet Standard: an open-source standard (MIT license) giving AI agents a universal, non-custodial wallet to hold funds and sign transactions across all major blockchains.
15+ major contributors: PayPal, OKX, Ripple, Tron, Solana Foundation, Ethereum Foundation, Base, Polygon, Sui, Circle, Arbitrum, LayerZero, and more.
8 blockchain families: a single seed phrase derives accounts across EVM, Solana, Bitcoin, Cosmos, Tron, TON, Filecoin, and XRP Ledger.
Hardened security: keys encrypted with AES-256-GCM at rest, decrypted only to sign, wiped immediately after. Private keys are never exposed.
340,000 AI wallets in Q1 2026: the number of on-chain wallets held by AI agents exploded in the first quarter.
AI-crypto convergence accelerates: after WLFI AgentPay, Visa AI Agents, and Stripe Tempo, MoonPay fills the missing link — the wallet.

The missing link of the AI agent economy

Over the past few weeks, announcements at the convergence of artificial intelligence and crypto have been relentless. WLFI launched AgentPay for stablecoin payments. Visa unveiled a payment tool for AI agents. Stripe and Paradigm put Tempo and its Machine Payments Protocol into production.

But one piece was missing from the puzzle: the wallet. How does an AI agent hold funds securely? How does it sign transactions across different blockchains without exposing private keys? That’s exactly the problem MoonPay solves with the Open Wallet Standard.

Open Wallet Standard: a universal wallet for machines

The Open Wallet Standard, available on GitHub, npm, and PyPI, is an open-source standard (MIT license) that gives AI agents the ability to:

Hold funds non-custodially on any major blockchain
Sign transactions without ever exposing private keys
Operate across 8 blockchain families from a single seed phrase: EVM (Ethereum, Base, Arbitrum…), Solana, Bitcoin, Cosmos, Tron, TON, Filecoin, and XRP Ledger

Security is at the core of the design. Keys are encrypted at rest with AES-256-GCM, one of the most robust encryption standards. They’re decrypted only to produce a signature, held in protected memory (non-swappable to disk), and wiped immediately after.

A coalition of 15 major players

What gives this announcement weight is the breadth of the coalition. Over 15 organizations contribute to the standard:

Payments: PayPal, Circle
Exchanges: OKX
Blockchains: Ethereum Foundation, Solana Foundation, Base, Polygon, Sui, Arbitrum, Tron, TON Foundation, Filecoin Foundation
Infrastructure: Ripple, LayerZero, Dynamic, Allium
AI: Virtuals (autonomous AI agents)

The fact that direct competitors — Ethereum Foundation and Solana Foundation, for example — are contributing to the same standard is telling. The AI agent economy is a big enough opportunity for rivals to cooperate on foundational infrastructure.

Why AI agents need crypto wallets

An AI agent that needs to operate autonomously requires three things: the ability to reason, the ability to act, and the ability to pay. Language models (GPT, Claude, Gemini) provide reasoning. Agent frameworks (LangChain, CrewAI) provide action. But the ability to pay required dedicated infrastructure.

Traditional banking systems aren’t designed for machines. Opening a bank account, getting a credit card, passing KYC — all of this assumes a human. Crypto wallets, however, are digitally native and programmable.

The Open Wallet Standard is the foundational layer enabling AI agents to hold and manage funds. Payment protocols (AgentPay, Tempo’s MPP) are the execution layer defining how those funds are spent. The two layers are complementary.

340,000 AI wallets in one quarter

The numbers confirm the trend. In Q1 2026, over 340,000 on-chain wallets were held by AI agents. This figure continues growing as use cases multiply: automated trading, treasury management, cloud service payments, agent-to-agent interactions.

MoonPay had already launched MoonPay Agents in February 2026, a non-custodial software layer giving AI agents access to wallets and funds via a command-line interface (CLI). The Open Wallet Standard generalizes this approach by making it universal and interoperable.

Our analysis

In the space of a week, the infrastructure for the AI agent economy has expanded considerably. WLFI launched the payment SDK. Stripe launched the blockchain and protocol. MoonPay fills the final link: the wallet.

The AI-crypto convergence is now tangible. AI agents will soon have a universal wallet (Open Wallet Standard), payment infrastructure (Tempo/MPP), and payment standards (AgentPay). The puzzle pieces are coming together.

For the blockchain ecosystem, this is a major opportunity. If AI agents become a significant driver of on-chain transactions — as the 340,000 AI wallets in Q1 2026 suggest — demand for stablecoins, gas, and blockchain bandwidth will mechanically increase. This is a catalyst worth watching very closely.

Glossary

Open Wallet Standard

An open-source standard launched by MoonPay enabling AI agents to hold funds and sign transactions across all major blockchains without exposing private keys. Available under MIT license on GitHub.

AI Agent

An autonomous AI program capable of complex tasks — negotiating services, making payments, managing a portfolio — without human intervention at each step.

Wallet (Crypto wallet)

Software storing cryptographic keys for holding and transferring cryptocurrency. A non-custodial wallet means only the owner controls the keys — no third party can access the funds.

Blockchain

A decentralized digital ledger recording transactions transparently. The Open Wallet Standard supports 8 blockchain families, from Ethereum to Bitcoin to Solana and Cosmos.

Non-custodial

A service or wallet where the user (or AI agent) retains exclusive control of their private keys. Unlike a centralized exchange, no third party can block or seize the funds.

Frequently Asked Questions

Is the Open Wallet Standard only for AI agents?

No. The standard can be used by any software that needs to manage crypto wallets programmatically. However, it’s specifically designed for AI agents: secure key management, automated signatures, multi-blockchain support from a single seed phrase.

Can AI agents steal my funds?

The Open Wallet Standard is non-custodial: AI agents control only their own wallet, not yours. If you give an agent a budget via a protocol like MPP or AgentPay, the agent can only spend the authorized amount, within the limits you’ve defined.

Why MoonPay rather than another player?

MoonPay is one of the world’s largest on-ramp/off-ramp infrastructure providers. The company already launched MoonPay Agents in February 2026. The choice to open-source under MIT license with 15+ contributors shows an intent to create an industry standard, not a proprietary product.

How does this relate to Stripe’s Tempo and WLFI’s AgentPay?

These three projects are complementary. MoonPay’s Open Wallet Standard is the “wallet” layer — where the AI agent holds its funds. Tempo (Stripe) and its MPP are the “payment” layer — how the agent spends. AgentPay (WLFI) is a specific SDK for USD1 stablecoin payments. Together, they form the complete infrastructure of the agentic economy.

Sources

This article draws on the following sources:

PRNewswire / MoonPay – MoonPay Open-Sources the Wallet Layer for the Agent Economy.
Bitcoin Magazine – MoonPay Launches Open-Source Wallet Standard for AI Agents.
The Defiant – MoonPay Unveils Wallet Standard for AI Agents.
Crypto Briefing – MoonPay open-sources open wallet standard for AI agents backed by PayPal, Ethereum Foundation.

How to cite: Fibo Crypto. (2026). MoonPay Launches Open-Source Wallet Standard for AI Agents. Retrieved March 24, 2026 from fibo-crypto.fr