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x402 Contract Reality Verified
Check public x402 v1/v2 payment quotes and Bazaar metadata before paying USDC
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About this tool
Free, open-source x402 v1/v2 Contract Reality Check for API buyers. Paste a PUBLIC unsigned HTTP 402 PaymentRequired JSON or the public PAYMENT-REQUIRED header base64 to flag CAIP-2 network and USDC amount issues, v1/v2 field confusion and missing Bazaar response metadata. Try fictional examples, inspect clear diagnostic codes and save sanitized findings locally. No wallet, account, transaction, payment, signing, API probing, analytics or data upload. All free. Separate optional developer QA available only after written scope.
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