Accept x402 crypto payments across 29 chains — every major EVM chain plus Solana, TON, Tron, NEAR, Sui, Aptos, Algorand, Stellar & XRPL — in a couple of lines. No backend, no database, no fee; payments settle straight to your wallet.
Grantex Delegation Tokens for x402 payment flows — agent spend authorization with W3C Verifiable Credentials
Open-source CLI test harness for MPP discovery, 402 payment challenges, and verified paid-flow smoke tests.