{"uid":"cap_bp7hqU-Ufi5csQojCFFPQ","slug":"revert-wtf-x402-payment-option-selector-e296a2b3","name":"revert.wtf x402 Payment Option Selector","description":"Paid hosted 4-byte function/error selector resolver backed by the revert.wtf selector catalog. Send a 4-byte selector such as 0x08c379a0.","url":"https://revert.wtf/api/x402/selector","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"selector":{"type":"string"}}},"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_ZwgvvNE48GzgQsdILrPaR","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":"Selects and confirms the accepted x402 micropayment option for a given API endpoint, enabling paid API access.","exampleAgentPrompt":"Select the accepted x402 payment option for this endpoint using selector 'usdc-base-1' so I can proceed with the paid API call.","exampleUseCases":null,"resultDescription":"Returns the confirmed accepted x402 payment option for the endpoint, allowing the caller to proceed with the appropriate micropayment and complete the API request.","failureModes":["Invalid or unrecognized selector value returns an error","No matching payment option found for the given selector","x402 payment configuration not available for endpoint","Malformed request body missing selector field","Endpoint not configured for x402 payments"],"whenToPreferThis":"Use this endpoint when you need to programmatically select or confirm an x402 payment option before making a call to a 402-protected API, particularly in automated agent workflows that handle USDC micropayments on the Base network via the x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:36:44.351Z","isFirstParty":false}