x402-stakefy-sdk
The most feature-rich x402 payment SDK for Solana - 10x lower fees (0.1%), social payments, session budgets, payment channels, React hooks, and Express middleware
push-x402
Drop-in axios replacement that automatically handles HTTP 402 Payment Required responses with blockchain payments on Push Chain
nano402
Core HTTP 402 payment library for Nano cryptocurrency - framework agnostic
@nano402/express
Express middleware for nano402 - HTTP 402 payments with Nano cryptocurrency
monad-x402
HTTP 402 Payment Protocol SDK for Monad - Axios-compatible payment wrapper with automatic network detection and zero fallbacks