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x402helper.xyz Test Billing Verifier
x402
x402helper.xyz Test Billing Verifier is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Verifies x402 payment proofs for test billing scenarios on Base and Solana networks.
Price / call$0.001
Success—
StatusUnknown
How this service works
x402 micropayments demo server. AI agents pay 0.001 USDC for billing verification.
Output
Returns a verification result indicating whether the submitted x402 payment proof is valid, along with billing confirmation status for the test transaction on the specified blockchain network (Base or Solana).
Example use cases
Validate micropayment before API access
“I just sent a small USDC payment through x402 on Solana for API access — can you check if the payment proof went through and confirm I'm all set to use the service?”
Test x402 billing flow on Base
“We're setting up x402 micropayments for our test environment on Base network. Can you verify this test payment proof to make sure our billing integration is working correctly?”
Confirm pay-per-call transaction receipt
“I need to verify that my x402 micropayment was successfully processed on the blockchain before I grant the user access to this premium API endpoint — which network should I validate against?”
Technical details
Endpoint
POSThttps://x402helper.xyz/test-billingWhen to prefer
Use this endpoint when you need to verify x402 payment proofs specifically for test billing on Base or Solana networks. Ideal for developers testing x402 payment flows before production deployment or for agents that need to confirm micropayment receipts as part of a pay-per-call API access pattern.
Side effects
- Invalid or malformed payment proof returns verification failure
- Unsupported network (not Base or Solana) returns error
- Expired payment proof returns invalid status
- Duplicate payment proof rejected to prevent replay attacks
- Insufficient USDC amount returns payment validation failure
Tags
x402
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