DePay

DePay is a JavaScript SDK and set of embeddable widgets that let websites and apps accept crypto payments directly into merchant wallets. It handles wallet selection, token routing and on-the-fly conversions so a single integration can accept many tokens across multiple blockchains.

Key Features

• Client-side embeddable payment widget and SDK for web apps, installable via npm or CDN
• Multi-blockchain support (EVM-compatible chains and Solana) and broad wallet compatibility
• Managed integrations (integration ID) and unmanaged configurations for direct accept lists
• Real-time token conversion and swap routing so payers can use many tokens while receivers get specified assets
• Fee configuration (multiple fees and protocol fee), fixed-currency amounts, and customizable UI styling
• Options for passing connected wallet instances and custom RPC providers

Use Cases

• Accept crypto checkout payments on ecommerce sites and dApps
• Collect donations or fixed-price payments in stablecoins or tokens
• Integrate wallet-to-wallet payments for subscriptions, paywalls, or on-chain purchases

Limitations and Considerations

• Widgets are client-side; server-side rendering requires loading only on the client to avoid SSR issues
• Unmanaged configurations do not provide server-side callbacks; managed integrations rely on hosted configuration
• Transactions depend on user wallets and blockchain network conditions (gas fees, latency)

DePay is focused on simplifying Web3 payment integration with a lightweight developer experience and configurable widget options, suitable for sites that need fast, wallet-native crypto checkout capabilities.