Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.
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Verifies an agent's x402 payment flow against a free Base Sepolia testnet endpoint. Call with no arguments first to get back the payment-required challenge (price, network, payTo). Sign it with your x402 client, then call again passing paymentSignature as the encoded PAYMENT-SIGNATURE header value to get back a verified/failed receipt.
Encoded PAYMENT-SIGNATURE header from a signed x402 payment payload. Omit to receive the payment-required challenge instead.
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Verifies an agent's x402 payment flow against a free Base Sepolia testnet endpoint. Call with no arguments first to get back the payment-required challenge (price, network, payTo). Sign it with your x402 client, then call again passing paymentSignature as the encoded PAYMENT-SIGNATURE header value to get back a verified/failed receipt.
| Argument | Type | Description |
|---|---|---|
| paymentSignature | string | Encoded PAYMENT-SIGNATURE header from a signed x402 payment payload. Omit to receive the payment-required challenge instead. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"paymentSignature": {
"type": "string",
"description": "Encoded PAYMENT-SIGNATURE header from a signed x402 payment payload. Omit to receive the payment-required challenge instead."
}
},
"additionalProperties": false
}