{"id":"1e35c0de-684a-470c-bc05-f5bbf03dbef3","shortId":"78SBcH","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/98` 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 the crawled material. The docs, pricing, and API pages all resolve to a minimal \"Connect wallet\" prompt with no further detail. Because of this, the exact capabilities and expected request/response payloads for the KYC verification call remain unclear.\n\nThe endpoint is confirmed live: it returns a proper x402 version-1 challenge with USDC (contract 0x8335…) on Base, a payTo address, and a 300-second timeout. The payment scheme is \"exact,\" meaning the full maxAmountRequired of 20,000 base units (i.e., $0.02 given USDC's 6 decimals) is charged per call.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-base","pay-per-request","identity-verification"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","AML verification","customer verification","ID verification","compliance check"],"warnings":["No documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no content.","Request body schema and response format are completely unknown; example_request_json and example_response_json cannot be provided.","The endpoint path includes a numeric ID (/98) whose meaning is undocumented — it may be a specific verification type or a placeholder.","KYC/identity verification is a regulated category; no information about the provider's compliance certifications or data handling practices is available.","The provider's identity and legal entity are not disclosed on the site."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/98","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/98","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request body fields, response schema, or what 'verifications/98' actually verifies. Docs pages are empty. No OpenAPI spec. Effectively a stub 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'/api/v1/kyc/verifications/98':48 '0.02':56,110,213 '000':209 '0x8335':187 '20':208 '300':195 '6':217 'AML verification' 'ID verification' 'KYC check' 'accept':49 'access':39 'address':192 'ai/ml':100 'analyt':99 'api':66,96,140 'attach':75 'base':5,18,63,189,210 'bodi':124 'broad':89 'call':9,22,58,168,222 'caller':73 'capabl':159 'catalog':90 'challeng':183 'charg':53,220 'compliance check' 'confirm':174 'connect':147 'contract':186 'crawl':134 'custom':36 'customer verification' 'data':98,103 'decim':218 'detail':153 'doc':137 'document':131 'endpoint':3,16,28,118,172 'exact':158,202 'expect':161 'field':125 'finance/web3':102 'format':128 'full':205 'given':214 'header':79 'host':84 'howev':113 'i.e':212 'identity verification' 'identity-verification' 'infer':101 'infrastructur':105 'input':120 'key':67 'know':34 'know your customer' 'kyc':1,14,33,116,166 'kyc-verification' 'limit':70 'live':175 'lowpaymentfee.com':30,86 'materi':135 'maxamountrequir':206 'mean':203 'minim':146 'network':64 'offer':87 'page':141 'pay':7,20,93 'pay-per-cal':6,19 'pay-per-request':92 'payload':163 'payment':43,78,199 'payto':191 'per':8,21,57,94,111,221 'post':50,123 'price':108,138 'prompt':149 'proper':179 'protocol':44 'provid':31 'rate':69 'remain':169 'request':51,82,95,112 'request/response':162 'requir':72,122 'resolv':143 'resourc':47 'respons':127 'return':177 'schema':121 'scheme':200 'second':196 'servic':38 'simpli':74 'site':85 'span':97 'specif':46,115 'timeout':197 'unclear':170 'unit':211 'usdc':13,26,60,185,215 'usdc-base' 'util':106 'verif':2,15,37,117,167 'version':181 'via':10,23,40 'wallet':148 'x402':11,24,42,77,180 'x402-payment'","prices":[{"id":"31532122-c764-421d-9e78-813f3936c139","listingId":"1e35c0de-684a-470c-bc05-f5bbf03dbef3","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/98","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:23.407Z"}],"sources":[{"listingId":"1e35c0de-684a-470c-bc05-f5bbf03dbef3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/98","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:23.407Z","lastSeenAt":"2026-04-22T01:01:06.080Z"}],"details":{"listingId":"1e35c0de-684a-470c-bc05-f5bbf03dbef3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/98 \\\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":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/98"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/98"},{"claim":"All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The site lists KYC/verification, analytics, AI, finance, and utility API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Verifying customer identity as part of onboarding flows","Automated KYC checks for fintech or Web3 applications","Compliance screening triggered by agent workflows","On-demand identity verification without API key management"],"bestFor":["Developers needing pay-per-call KYC without subscription commitments","Agent-driven compliance workflows that settle in USDC on Base","Prototyping identity verification integrations with minimal setup"],"notFor":["High-volume KYC pipelines requiring bulk pricing or SLAs","Use cases requiring detailed documentation of input/output schemas before integration","Regulated environments that need a named, audited KYC provider with certifications"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:15.844Z"},"updatedAt":"2026-04-22T01:01:06.080Z"}}