{"id":"0bf1f9f3-b561-404d-ba8a-a9011f92c225","shortId":"EDjveG","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/75` 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 page. The docs, pricing, and API pages all resolve to a minimal \"Connect wallet\" prompt with no further detail. Because of this, the exact capabilities of the KYC verification (what data it accepts, what checks it performs, what it returns) remain unknown.\n\nPayment settles in USDC (contract 0x8335…2913) on Base to address 0x1A2B…85F3, with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The endpoint is live and returning a valid x402 challenge.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","ID verification","compliance check","AML screening","customer verification"],"warnings":["No documentation available for this endpoint — input body schema and response format are completely unknown.","The nature of the KYC verification (what data is checked, what is returned) cannot be confirmed from available sources.","Docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no content.","KYC/identity verification is a regulated category — verify the provider's compliance posture independently."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/75","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/75","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 402 challenge, but there is zero documentation on the KYC verification's input fields, response schema, or what checks it actually performs. Docs pages are empty stubs. The listing is essentially a stub with only pricing and protocol details 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'0.02':56,110,200 '000':196 '0x1a2b':188 '0x8335':182 '20':195 '2913':183 '6':204 '85f3':189 'AML screening' 'ID verification' 'KYC check' 'accept':49,167 'access':39 'address':187 'ai/ml':100 'amount':193 'analyt':99 'api':66,96,140 'attach':75 'base':5,18,63,185,197 'base-network' 'bodi':124 'broad':89 'call':9,22,58 'caller':73 'capabl':159 'catalog':90 'challeng':215 'charg':53 'check':169 'compliance check' 'connect':147 'contract':181 'crawl':134 'custom':36 'customer verification' 'data':98,103,165 'decim':205 'detail':153 'doc':137 'document':131 'endpoint':3,16,28,118,207 'exact':158 'field':125 'finance/web3':102 'format':128 'given':201 'header':79 'host':84 'howev':113 'i.e':199 'identity verification' 'infer':101 'infrastructur':105 'input':120 'key':67 'know':34 'know your customer' 'kyc':1,14,33,116,162 'kyc-verification' 'limit':70 'live':209 'lowpaymentfee.com':30,86 'maximum':192 'minim':146 'network':64 'no-api-key' 'offer':87 'page':135,141 'pay':7,20,93 'pay-per-cal':6,19 'pay-per-request':92 'payment':43,78,177 'per':8,21,57,94,111 'perform':171 'post':50,123 'price':108,138 'prompt':149 'protocol':44 'provid':31 'rate':69 'remain':175 'request':51,82,95,112 'requir':72,122 'resolv':143 'resourc':47 'respons':127 'return':174,211 'schema':121 'servic':38 'settl':178 'simpli':74 'site':85 'span':97 'specif':46,115 'unit':198 'unknown':176 'usdc':13,26,60,180,202 'usdc-settlement' 'util':106 'valid':213 'verif':2,15,37,117,163 'via':10,23,40 'wallet':148 'x402':11,24,42,77,214 'x402-payment'","prices":[{"id":"af161820-2d29-439a-aaa0-a95627c3e522","listingId":"0bf1f9f3-b561-404d-ba8a-a9011f92c225","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/75","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:07.799Z"}],"sources":[{"listingId":"0bf1f9f3-b561-404d-ba8a-a9011f92c225","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/75","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:07.799Z","lastSeenAt":"2026-04-22T04:01:35.328Z"}],"details":{"listingId":"0bf1f9f3-b561-404d-ba8a-a9011f92c225","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/75 \\\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/75"},{"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":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/75"}],"useCases":["Verifying customer identity as part of onboarding flows","Compliance checks for financial or Web3 applications","Automated KYC screening triggered by AI agents"],"bestFor":["Developers needing on-demand KYC checks without subscription commitments","AI agents that can settle micropayments in USDC on Base","Applications requiring keyless, pay-per-use identity verification"],"notFor":["Users who need detailed documentation before integrating (docs are currently empty)","High-volume KYC pipelines where batch pricing would be more economical","Use cases requiring non-crypto payment rails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.588Z"},"updatedAt":"2026-04-22T04:01:35.328Z"}}