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x402 Payment Harness

https://github.com/rplryan/x402-payment-harness

Our Verdict

Gold402 Verified. Hand-reviewed and on the curated list — curation is the bar.

Python library + CLI for x402 without Coinbase CDP wallet. Works with any Ethereum EOA. Full HTTP 402 -> EIP-712 sign -> X-PAYMENT header flow. `pip install x402-payment-harness`.

SDK / Library · SDKs & Libraries

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