Omnichain Merchant Payments Revolution

Payments that
earn yield

The first omnichain merchant payment system where settlements come as yield-bearing vault shares, not idle stablecoins. Cross-chain friction solved.

Any
Chain Payment
Auto
Yield Earning
Zero
Idle Capital

How VaultPay SDK Works

Complete payment infrastructure with cross-chain swaps, yield generation, and smart contract settlement

Payment SDK Flow

Merchant & User Journey

Merchant Onboarding

Merchants connect their wallet and configure payout preferences (USDC_ONLY, SHARES_ONLY, or SPLIT) to set up their payment infrastructure.

1

Wallet Authentication

Seamless integration with Privy Auth for secure wallet connection and user authentication across the platform.

2

Cross-chain Token Swaps

Built-in 1inch Swap API integration enables automatic token conversion to preferred settlement currencies across multiple chains.

3

Yield-bearing Vault Shares

Receive ERC-4626 vault shares instead of idle USDC, automatically earning yield from DeFi protocols like Morpho and Euler.

4

Smart Contract Settlement

All payments processed through audited smart contracts on MerchantRegistry for trustless and transparent settlements.

5

Multi-chain Support

Full support for major EVM chains including Ethereum, Polygon, Arbitrum, Base, and Optimism through Wagmi integration.

6

Real-time Dashboard

Monitor vault positions, track yields earned, and manage redemption options through an intuitive merchant dashboard.

7

SDK Integration

Simple SDK integration allows any application to accept yield-bearing payments with just a few lines of code.

8

Built on battle-tested tech

Omnichain payments powered by leading DeFi protocols and cross-chain infrastructure

Smart Contracts

Settlement + routing contracts with ERC-4626 vault integrations (Aave/Morpho/Euler)

View contracts →

Cross-Chain + Swaps

1inch API for swaps, Circle CCTP / LayerZero for bridging across any chain

View integrations →

Frontend / Dashboard

Next.js + Wagmi + Ethers.js/Viem with Coinbase Embedded Wallets

View dashboard →

Yield Vaults

ERC-4626 compliant vaults from Aave, Morpho, or Euler for auto-yield generation

View vaults →

Optional Infra

Chainlink price feeds and The Graph subgraphs for enhanced UX and analytics

View infra →

Merchant Dashboard

Real-time vault share balance, yield tracking, and flexible redemption options

View demo →

Ready to earn yield on payments?

Be among the first merchants to receive payments as yield-bearing vault shares. Join our exclusive waitlist.

Get early access and exclusive updates as we build the future of omnichain merchant payments.