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Product Update•

Smart Wallet Support: Dexter Opens x402 to Every Wallet on Solana and EVM

Smart Wallet Support: Dexter Opens x402 to Every Wallet on Solana and EVM

FOR IMMEDIATE RELEASE

Dexter Facilitator Now Accepts Payments from Smart Wallets, Multisigs, and Account Abstraction Wallets — Removing the Biggest Barrier to Enterprise x402 Adoption

Squads. Crossmint. Coinbase Smart Wallet. If it can hold USDC, it can pay through Dexter.

The Problem We Just Solved

Until now, every x402 facilitator in the ecosystem had the same limitation: they only accepted payments from simple wallets. Externally Owned Accounts. One key, one signature.

That left out everyone else. DAOs managing treasuries through Squads. Companies using custodial wallets like Crossmint. Users with Coinbase Smart Wallets. Agents operating through program-controlled accounts. All of them were locked out of the entire x402 payment ecosystem -- not because they lacked funds, but because facilitators couldn't verify their transactions.

Today, that changes. The Dexter facilitator at x402.dexter.cash now accepts payments from smart wallets on both Solana and EVM.

What This Means

On Solana

Smart wallets on Solana (Squads multisigs, Crossmint custodial wallets, SWIG, SPL Governance) execute token transfers through Cross-Program Invocation rather than direct instructions. Standard facilitators reject these transactions because they don't match the expected instruction layout.

Dexter's facilitator now uses a dual-path verification system. Simple wallet payments are verified instantly through static analysis, exactly as before. Smart wallet payments are verified through outcome-based analysis -- we verify that the correct payment happened, regardless of how the wallet structured the transaction.

The security model is robust. The facilitator's fee payer is fully isolated from every instruction in the transaction. Compute budget caps are enforced. The payment outcome is confirmed through simulation. No custom on-chain program required. No separate payment scheme. Smart wallets just work, transparently, through the same exact scheme that every x402 client already uses.

On EVM

EVM smart wallets (ERC-4337 accounts, Coinbase Smart Wallet) are supported through Permit2-based payments with EIP-1271 signature verification. For wallets that haven't been deployed yet, Dexter handles counterfactual deployment automatically via EIP-6492 -- your wallet gets deployed on your first payment, with zero extra steps.

Why This Matters for the x402 Ecosystem

The x402 protocol is designed for machine-to-machine payments. But machines don't always use simple wallets.

AI agents running through enterprise infrastructure use custodial wallets. DAOs that want to pay for API access hold funds in multisigs. Next-generation wallet providers are building on account abstraction. All of these are growing segments of the market, and all of them were unable to participate in x402 commerce.

Smart wallet support turns x402 from a protocol for individual developers into a protocol for organizations, enterprises, and the next generation of wallet infrastructure.

For Builders

If you're building a wallet, agent framework, or enterprise tool that uses smart accounts:

  • Nothing changes on the client side. Build your transaction the way you normally would. If it contains a valid USDC transfer, Dexter will accept it.
  • Discovery is built in. Our /supported endpoint now advertises smartWalletSupported: true so clients can detect the capability programmatically.
  • Both chains, same facilitator. Solana and EVM smart wallet payments settle through the same facilitator at x402.dexter.cash.
  • Gas is still sponsored. The facilitator pays transaction fees on Solana. Users only need USDC.

We're actively looking for teams to test smart wallet payments in production. If you're building with Squads, Crossmint, Coinbase Smart Wallet, or any other smart account system, reach out -- we want to make sure it works perfectly for your use case.

Live Now

Smart wallet support is live in production at:

  • Facilitator: x402.dexter.cash
  • Supported networks: Solana, Base, Polygon, Arbitrum, Optimism, Avalanche
  • Capability discovery: GET x402.dexter.cash/supported (check features.smartWalletSupported)

About Dexter

Dexter is payment infrastructure for the AI economy. Operating the most-used x402 facilitator by transaction volume, Dexter powers millions of autonomous machine-to-machine payments across six blockchain networks. From facilitation to marketplace to proxy routing, Dexter handles the complete payment layer for agentic commerce.

$DEXTER | dexter.cash | @dexteraisol

Media Contact: [email protected]

This announcement is for informational purposes only. Smart wallet support is subject to the same security policies and rate limits as standard payments.