{"uid":"cap_8sS6vRaFFAZBL7Ri9Tie1","slug":"x402helper-xyz-61d160c8","name":"x402helper.xyz Test Billing Verifier","description":"x402 micropayments demo server. AI agents pay 0.001 USDC for billing verification.","url":"https://x402helper.xyz/test-billing","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2KGHfShI0OiLmaZ9KDhJ-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies x402 payment proofs for test billing scenarios on Base and Solana networks.","exampleAgentPrompt":"Verify this x402 payment proof for a test billing call — the payment was made in USDC on Base network and I need to confirm it's valid before proceeding.","exampleUseCases":[{"title":"Validate micropayment before API access","prompt":"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?"},{"title":"Test x402 billing flow on Base","prompt":"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?"},{"title":"Confirm pay-per-call transaction receipt","prompt":"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?"}],"resultDescription":"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).","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:33:28.130Z","isFirstParty":false}