Voulti

Voulti Payouts solves the broken system of cross-border payments from U.S. companies to Latin America.

Today, platforms like Viagogo, Fiverr, and Upwork struggle to pay users in countries like Colombia, Mexico, or Brazil, facing long delays, high fees, and poor exchange rates.

With Voulti, any business can pay a recipient instantly using PayPal USD (PYUSD). Recipients automatically receive their local stablecoin (like cCOP, MXNB, or BRLA) within seconds, even if they don’t have a wallet. They simply receive an email and can claim their funds securely.

The goal is to make sending money as easy as sending an email: simple, fast, and global.

PYUSD acts as the source of truth and settlement layer, while Voulti abstracts the blockchain complexity into a human experience.

Voulti empowers companies to pay global contributors, sellers, and partners instantly and at a fraction of traditional costs, without requiring any crypto knowledge from the end user.

Tech Stack:

• Frontend: Next.js 14, TypeScript, Tailwind CSS, Privy (embedded wallets)
• Backend: Node.js, Express, PostgreSQL
• Blockchain: Solidity, Foundry, PYUSD on Arbitrum
• Cross-chain: Squid Router for swaps between Arbitrum and Celo
• Infrastructure: Vercel, Railway

Architecture:

• Merchant Interface: React-based dashboard where US companies create payouts
• PYUSD Integration: Merchants hold PYUSD on Arbitrum as their "bank account"
• Cross-chain Swaps: Squid Router automatically converts PYUSD to regional stablecoins
• Email System: Recipients receive claim links via email
• Embedded Wallets: Privy creates wallets for non-crypto users
• Regional Stablecoins: cCOP (Colombia), BRLA (Brazil) on Celo and MXNB (Mexico) on Arbitrum.

Key Technical Challenges:

• Cross-chain Complexity: Never built cross-chain swaps before. Had to learn Squid Router integration
• Non-crypto UX: Made blockchain payments feel like sending an email using Privy's embedded wallet technology
• State Management: Prevented infinite re-renders in React hooks for events fetching

PYUSD Integration:

• PYUSD serves as the base currency for all payouts
• Deployed on Arbitrum for low fees and fast transactions
• Integrated with Squid Router for seamless cross-chain swaps
• Built custom vault system for regional stablecoin management

Notable Hacks:

• Used Privy's embedded wallet technology to eliminate crypto onboarding friction
• Implemented email-based claim system for non-crypto users
• Built custom vault deployment scripts for regional stablecoins
• Created a unified interface that abstracts away blockchain complexity