Send USDC to anyone, anywhere, just with their phone number. Cash out directly with Apple Pay.
Payce is a project that enables users to send USDC to anyone in the world using just their phone number, and allows recipients to spend their crypto instantly via Apple Pay.
A fresh wallet is created using Privy and linked to the phone number, then funded by sender. The sender covers the gas via a Sponsor Wallet, so the recipient doesn’t need any native tokens.
The recipient is notified by SMS with a magic link to claim their funds. No apps to install, no seed phrases to manage, just a seamless crypto experience, as easy as sending a text.
For this project, we used:
Next.js for the web app, with ShadCN UI components and Tailwind CSS for a clean and responsive frontend
Textbelt to handle SMS delivery and OTP verification
Privy for account abstraction and seamless wallet creation mapped to the user’s phone number
Mantle as our L2 blockchain for fast, low-cost, and gasless USDC transfers
This stack allowed us to create a smooth and intuitive UX, accessible even to non-crypto natives.