A free, 100% open-source, zero-fee stateless crypto payment gateway widget. Accept USDT and USDC payments directly from buyer Web3 wallets (MetaMask) to your self-custody wallet without servers, databases, or compliance overhead.
serverless peer-to-peer stateless metamask stablecoin-payments non-custodial crypto-payment-gateway zero-fee usdt-checkout web3-checkout
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Updated
Jul 16, 2026 - HTML