Papaya
Application for send and receive remittances to/from Paypal accounts to crypto and fiat.
Project Description
Papaya connects Apple Pay, PayPal, and crypto so anyone can send PYUSD instantly, even if the recipient doesn’t have a PayPal account.
Built on Web3 rails, Papaya makes money move like messages — no banks, no borders, no delays. And every time you send, you earn cashback and rewards.
Papaya allows seamless transfers between:
• Apple Pay → PYUSD on-chain → PayPal • Wallet to wallet (crypto ↔ PYUSD) • PayPal accounts ↔ smart wallets
Send and receive money worldwide. Pay anyone with Apple Pay. Papaya. Instantly.
How it's Made
Papaya is built with Next.js, TypeScript, and Reown AppKit, using Hardhat, Pyth Network, and PayPal USD (PYUSD) as the foundation of its Web3 payment architecture.
Hardhat: Used for smart contract development, testing, and deployment of our multi-contract system:
PaymentGateway.sol: Core payment routing and settlement logic. ChainPriceOracle.sol: Price feed aggregation and Pyth Network integration. UniswapV3Oracle.sol: Liquidity and secondary price validation layer.
Pyth Network Provides real-time on-chain price feeds to validate USD↔crypto↔PYUSD conversions, ensuring fair rates and accurate remittances.
PayPal USD (PYUSD) The core settlement token, powering instant and dollar-backed transfers between Apple Pay, PayPal, and Web3 wallets.
It is a dApp created on Next JS, using Apple Pay - Payment Request API, for managing apple pay payments for sending PYUSD to other users. It uses also Reown SDK for wallet management, and smart wallet infra, with the capability of using social login.
