{"id":"05908ba0-6d7e-4016-8ee2-b449ca8d1f48","shortId":"7BtCkc","kind":"x402","title":"KYC verification endpoint on Base, pay-per-call via x402 with USDC.","tagline":"KYC verification endpoint on Base, pay-per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides a KYC (Know Your Customer) verification service accessible via the x402 payment protocol. The specific resource `/api/v1/kyc/verifications/8` accepts POST requests and charges up to $0.02 per call in USDC on the Base network. No API keys or rate limits are required — callers simply attach an x402 payment header to each request.\n\nThe hosting site lowpaymentfee.com offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced at $0.02 per request. However, the specific KYC verification endpoint's input schema, required POST body fields, and response format are not documented in any crawled material. The docs, pricing, and API pages all resolve to a minimal \"Connect wallet\" prompt with no further detail.\n\nBecause there is no published documentation describing what fields the KYC verification endpoint expects or what it returns, agents should treat this as an exploratory integration. The endpoint is confirmed live (returns a valid x402 402 challenge), but the lack of input/output schema documentation significantly limits usability without trial-and-error.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-base","pay-per-request","no-api-key","post-endpoint"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","ID verification","compliance check","AML verification","x402 KYC"],"warnings":["No input schema documented — required POST body fields are unknown","No output/response schema documented","Docs, pricing, and API pages all render only a 'Connect wallet' prompt with no content","The description 'Premium API Access' is generic and does not describe KYC functionality","Cannot verify what KYC data source or verification method is used"],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/8","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/kyc/verifications/8","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request/response schemas, required fields, or what the KYC verification actually checks. Docs pages are empty. This is effectively a stub 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'0.02':56,110 '402':189 'AML verification' 'ID verification' 'KYC API' 'accept':49 'access':39 'agent':172 'ai/ml':100 'analyt':99 'api':66,96,140 'attach':75 'base':5,18,63 'bodi':124 'broad':89 'call':9,22,58 'caller':73 'catalog':90 'challeng':190 'charg':53 'compliance check' 'confirm':183 'connect':147 'crawl':134 'custom':36 'data':98,103 'describ':160 'detail':153 'doc':137 'document':131,159,197 'endpoint':3,16,28,118,166,181 'error':205 'expect':167 'exploratori':178 'field':125,162 'finance/web3':102 'format':128 'header':79 'host':84 'howev':113 'identity verification' 'infer':101 'infrastructur':105 'input':120 'input/output':195 'integr':179 'key':67 'know':34 'know your customer' 'kyc':1,14,33,116,164 'kyc-verification' 'lack':193 'limit':70,199 'live':184 'lowpaymentfee.com':30,86 'materi':135 'minim':146 'network':64 'no-api-key' 'offer':87 'page':141 'pay':7,20,93 'pay-per-cal':6,19 'pay-per-request':92 'payment':43,78 'per':8,21,57,94,111 'post':50,123 'post-endpoint' 'price':108,138 'prompt':149 'protocol':44 'provid':31 'publish':158 'rate':69 'request':51,82,95,112 'requir':72,122 'resolv':143 'resourc':47 'respons':127 'return':171,185 'schema':121,196 'servic':38 'signific':198 'simpli':74 'site':85 'span':97 'specif':46,115 'treat':174 'trial':203 'trial-and-error':202 'usabl':200 'usdc':13,26,60 'usdc-base' 'util':106 'valid':187 'verif':2,15,37,117,165 'via':10,23,40 'wallet':148 'without':201 'x402':11,24,42,77,188 'x402 KYC' 'x402-payment'","prices":[{"id":"da148520-7f98-43e0-a31d-59abe339140d","listingId":"05908ba0-6d7e-4016-8ee2-b449ca8d1f48","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/kyc/verifications/8","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:07.798Z"}],"sources":[{"listingId":"05908ba0-6d7e-4016-8ee2-b449ca8d1f48","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/8","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:07.798Z","lastSeenAt":"2026-04-22T04:01:35.326Z"}],"details":{"listingId":"05908ba0-6d7e-4016-8ee2-b449ca8d1f48","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/8 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/8"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/8"},{"claim":"Site advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, and API pages show only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Verifying customer identity as part of onboarding flows","Compliance checks for financial or Web3 applications","Automated KYC screening triggered by agent workflows"],"bestFor":["Developers needing pay-per-call KYC without subscription commitments","Agent-driven identity verification with crypto-native payment","Quick integration without API key provisioning"],"notFor":["Production KYC pipelines requiring documented SLAs and detailed response schemas","Bulk identity verification at scale (no documented batch support)","Users who need fiat-only payment rails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.556Z"},"updatedAt":"2026-04-22T04:01:35.326Z"}}