erc-3009

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Buyer SDK for HTTP 402 USDC micropayments — one-line pay() to access any x402-enabled API. XPay protocol client for EVM.

typescript sdk coinbase ethereum micropayments web3 evm pay-per-use xpay usdc crypto-payments eip-3009 permit2 http-402 x402 api-payments erc-3009 xpaylabs

Drop-in fetch wrapper that auto-pays HTTP 402 endpoints on Abstract.

fetch typescript payments developer-tools abstract viem http-402 x402 abstract-blockchain erc-3009

Tiny TypeScript client for the x402 HTTP payment protocol v2 (Linux Foundation). Zero deps, native fetch, ESM + CJS.

fetch typescript payments micropayments web3 linux-foundation http-402 x402 erc-3009

First Python client for the x402 HTTP payment protocol v2 (Linux Foundation, April 2026). Zero deps beyond requests. Typed. 99% coverage.

python payments micropayments web3 linux-foundation http-402 x402 erc-3009

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