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🚀 I built a fully functional DeFi wallet on Arc Testnet!

I've been working on this project for a while and I'm excited to finally share it. It's a Web3 wallet dApp built on Arc Testnet where you can make real on chain transactions nothing is fake or hardcoded.

🔗 Live: https://arc-finance-dapp.netlify.app

💻 GitHub: https://github.com/yoncazenan/-arc-wallet-dapp

Send USDC (native) and EURC (ERC-20) to any address on Arc Testnet. Share your address via QR code.

Swap between token pairs directly in the app.

I wrote and deployed a custom smart contract from scratch. Create a payment stream to any recipient over a set duration 7, 30, 90 or 365 days. The recipient can withdraw their earned amount at any time, and the sender can cancel with an automatic refund. Supports both native USDC and ERC-20 EURC.

📄 Contract: 0x98c28d49ff2fc07006ffe7d434e3b28f1204d9ab

Splitting a bill with friends? Enter the total amount, add participants — the app calculates each person's share and generates a payment link + QR code. Each participant opens the link, connects their wallet and pays their share directly on-chain.

Freelancers, this one's for you. Create an on-chain invoice, share the payment link with your client — they open it, connect their wallet and pay. Funds go directly to your wallet, no middleman.

Real-time balance tracking for USDC and EURC, plus full transaction history pulled directly from the blockchain.

Next.js · TypeScript · ethers.js v6 · Solidity · Hardhat · Netlify

Arc's native USDC behaves differently from standard ERC-20  it's sent via msg.value like ETH. I had to rewrite the Payment Stream contract to handle both native USDC and ERC-20 EURC. For Split Pay and Invoice, I used hash routing to solve cache issues with static site deployments on Netlify.

Try it out and let me know what you think! All feedback is welcome. 🙏

🚀 Built a Fully Functional DeFi Wallet on Arc Testnet — Send, Swap, Payment Streams, Split Pay & Invoice (Live Demo + Open Source)

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