{"id":"8f58452b-e5c9-4ba4-9657-1fa3b83a2039","shortId":"BqGNDy","kind":"x402","title":"KYC verification endpoint on Base, paid per-call via x402 with USDC.","tagline":"KYC verification endpoint on Base, paid per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides a KYC (Know Your Customer) verification service accessible at `/api/v1/kyc/verifications/72`. It uses the x402 payment protocol, accepting USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to access the resource.\n\nThe broader lowpaymentfee.com platform offers a range of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and crypto market data, and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and settle on the Base network using USDC. The specific endpoint listed here (`/api/v1/kyc/verifications/72`) appears to be a KYC verification resource, though detailed documentation on its request/response schema is not available — the docs, pricing, and API pages behind the site require a wallet connection and yielded no substantive content during crawl.\n\nThe endpoint is confirmed live, returning a proper 402 challenge with x402 version 1. The payment is directed to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the USDC contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base. The timeout for payment settlement is 300 seconds.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-base","pay-per-call","no-api-key","identity-verification"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","AML check","ID verification","compliance API","x402 KYC"],"warnings":["No request or response schema available — the endpoint's expected input and output are unknown.","Documentation pages require wallet connection and provided no usable content during crawl.","The resource path includes a numeric ID (/72) whose meaning is undocumented — it may be a specific verification record rather than a general-purpose endpoint.","KYC/identity verification is a regulated category; verify the provider's compliance posture before relying on this in production."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/72","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/72","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge, but there is no OpenAPI schema, no request/response documentation, and no examples. The docs pages require wallet connection and returned no content. The specific purpose of the '/72' resource ID is unclear. Effectively a stub 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'/request':136 '0.02':59,135 '000':61 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':210 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':215 '1':203 '20':60 '300':224 '402':198 '6':67 'AML check' 'ID verification' 'KYC API' 'accept':48 'access':39,92 'address':209 'ai/ml':111 'analysi':114 'analyt':110 'api':70,107,174 'appear':153 'attach':79 'avail':169 'base':5,18,52,62,143,217 'behind':176 'broader':96 'call':9,22,106 'caller':77 'challeng':199 'classif':116 'compliance API' 'confirm':193 'connect':182 'content':187 'contract':214 'convers':128 'crawl':189 'crypto':120 'custom':36 'data':109,122 'decim':68 'detail':161 'direct':207 'doc':171 'document':162 'embed':117 'endpoint':3,16,28,131,149,191 'financ':118 'generat':129 'geocod':126 'header':84 'identity verification' 'identity-verification' 'infer':112 'infrastructur':124 'key':71 'know':34 'know your customer' 'kyc':1,14,33,157 'kyc-verification' 'limit':74 'list':150 'live':194 'lowpaymentfee.com':30,97 'market':121 'model':138 'network':53,144 'no-api-key' 'offer':99 'page':175 'paid':6,19 'pay':104 'pay-per-cal':103 'pay-per-call' 'payment':46,83,89,205,221 'per':8,21,56,105 'per-cal':7,20 'platform':98 'price':55,137,172 'proof':90 'proper':197 'protocol':47 'provid':31 'rang':101 'rate':73 'request':57 'request/response':165 'requir':76,179 'resourc':94,159 'return':195 'schema':166 'second':225 'sentiment':113 'servic':38 'settl':140 'settlement':222 'share':132 'simpli':78 'site':178 'span':108 'specif':148 'substant':186 'summar':115 'though':160 'timeout':219 'unit':63 'usdc':13,26,49,65,146,213 'usdc-base' 'use':43,145,211 'util':125 'valid':87,127 'verif':2,15,37,158 'version':202 'via':10,23 'wallet':181 'x':82 'x-payment':81 'x402':11,24,45,88,201 'x402 KYC' 'x402-payment' 'yield':184","prices":[{"id":"9b07f281-3486-463c-b9e7-cbe314f5ba5e","listingId":"8f58452b-e5c9-4ba4-9657-1fa3b83a2039","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/72","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:12.534Z"}],"sources":[{"listingId":"8f58452b-e5c9-4ba4-9657-1fa3b83a2039","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/72","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:12.534Z","lastSeenAt":"2026-04-22T02:30:56.692Z"}],"details":{"listingId":"8f58452b-e5c9-4ba4-9657-1fa3b83a2039","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/72 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with x402 version 1, accepting USDC on Base with maxAmountRequired of 20000 base units.","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/72"},{"claim":"All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and payTo is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/72"}],"useCases":["Verifying customer identity as part of onboarding flows","Compliance checks for financial or crypto applications","Automated KYC screening without managing API keys or subscriptions","Agent-driven identity verification with micropayment settlement"],"bestFor":["Developers needing on-demand KYC checks without subscription commitments","Crypto-native applications that can pay with USDC on Base","Agents or automated workflows requiring pay-per-call identity verification"],"notFor":["Users who need detailed documentation or schema guarantees before integrating","High-volume KYC pipelines where bulk pricing would be more cost-effective","Applications that cannot settle payments in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.35Z"},"updatedAt":"2026-04-22T02:30:56.692Z"}}