{"uid":"cap_V7qtQONB1eSt89wGImP67","slug":"curb-discovery-probe-x402-usdc-on-base-f83cfec1","name":"CURB Discovery Probe (x402 USDC on Base)","description":"CURB discovery probe — USDC x402 on Base (sample price)","url":"https://api.curb.numetal.xyz/v1/matches/match_mrdr29vy_bb1e15ed/pay","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"note":{"type":"string","description":"Optional; ignored on unpaid probe."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_O9B7stmXzkZ8M0zf0Kpow","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"A paid discovery probe endpoint that validates x402 micropayment flows on Base using USDC, returning a match result for a specific CURB match ID.","exampleAgentPrompt":"Run a CURB discovery probe on match ID match_mrdr29vy_bb1e15ed using a 0.1 USDC x402 payment on Base, and include the note 'testing probe flow'.","exampleUseCases":null,"resultDescription":"A probe response confirming whether the x402 USDC payment on Base was accepted and returning match metadata for the given CURB match ID, validating the discovery flow end-to-end.","failureModes":["Payment not included or malformed x402 header returns 402 Payment Required","Insufficient USDC balance causes payment failure","Invalid or expired match ID returns 404 Not Found","Network congestion on Base delays payment confirmation","Malformed request body returns 400 Bad Request"],"whenToPreferThis":"Use this endpoint when you need to test or validate an x402 micropayment discovery flow on Base using USDC, specifically against a known CURB match probe. Prefer this over generic API test endpoints when the goal is to confirm x402 protocol compliance and USDC payment acceptance in the CURB ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:40:58.311Z","isFirstParty":false}