Next-Gen Web3 Global Payments | Built for Ethereum Mexico 2026
GlobalPay is a FinTech super-app that abstracts away 100% of the blockchain complexity. We are tearing down the wall between traditional fiat banking and the Web3 ecosystem. To the user, it feels exactly like a traditional Web2 NeoBank (like Mercado Pago). But under the hood, we leverage the Ethereum L2 Sepolia Network and Account Abstraction to enable instant cross-border remittances with zero gas fees.
Right now, there is a giant wall between traditional fiat banking and the Web3 ecosystem. If you are a user in LATAM, sending money across borders means paying brutal SWIFT fees and waiting days for settlement. And if you try to use crypto for everyday real-time purchases, the UX is a nightmare (gas fees, seed phrases, multiple networks).
Our solution is a complete paradigm shift.
We have built an Auto-Bridge that tokenizes local Fiat into pUSDC on the Sepolia testnet, enabling instant cross-border remittances without the user needing to understand gas fees. We are making crypto usable for real-time daily purchases without the user ever knowing they are using blockchain.
We are building institutional-grade infrastructure with strict AML and KYC compliance hardcoded into our flow:
- Bank KYC: Users must pass KYC to get a local UPI ID for domestic Fiat-to-Fiat transfers.
- Web3 KYC: We connect to their MetaMask and run an on-chain security score (Gitcoin Passport mocked integration). Once cleared, we issue a global PayTag and spin up a secure, custodial Internal Vault on the Sepolia network.
- Stripe Integration: Dynamically detects the user's country. Mexican users deposit native Mexican Pesos.
- Smart Bridge: With one click, the smart contract automatically mints the equivalent amount of
pUSDCdirectly into their internal vault. Bridge between local Fiat and L2 Crypto instantly, 24/7.
- Two Rails: Users can send domestic payments via their local UPI ID, or global transfers using a recipient's PayTag.
- AI Remittance Agent: Just tell the AI: "Send 10 USD to @vitalik" and the AI handles the complex 4-step atomic transaction (Fiat -> Crypto -> Transfer -> Fiat) in under 12 seconds with zero gas fees. All executed on the Sepolia L2 and verifiable on Etherscan!
- Real-time Activity Logs: Track transactions with dynamic Sent/Received graphs.
- Global Payments: Pay for cinema tickets, Uber, or food globally using your crypto balance, while the merchant instantly receives their native Fiat currency.
- Flash Loans: Uncollateralized liquidity for zero-risk arbitrage trading in a single block execution.
- Frontend: React, TailwindCSS, Vite
- Backend: Node.js, Express.js, MongoDB
- Web3: ThirdWeb SDK, Sepolia Testnet, Solidity Smart Contracts (USDC Mock)
- AI Integration: Custom regex and external LLM APIs for Intent Parsing
- Clone the repository
- Install dependencies for both client and backend:
cd client && npm install cd ../backend && npm install
- Start the development servers:
# Terminal 1 cd client && npm run dev # Terminal 2 cd backend && npm run dev
Submitted to the Ethereum Mexico 2026 Hackathon.