{"id":"c77fada2-ef5e-43ec-918b-2afcbc908a59","shortId":"RgnqPV","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 via the x402 payment protocol. The specific resource `/api/v1/kyc/verifications/61` accepts POST requests and charges up to $0.02 per call in USDC on the Base network. Payment is handled inline via the x402 header challenge — no API keys, accounts, or rate limits are required.\n\nThe parent site lowpaymentfee.com hosts a broader catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced at $0.02 per request. However, the KYC verifications endpoint is not listed on the site's public catalog, and no documentation was found describing its input schema, required fields, or response format. The docs, pricing, and API pages behind the site all render only a \"Connect wallet\" prompt with no additional content.\n\nBecause there is no OpenAPI spec, no request/response examples, and no documentation beyond the x402 challenge itself, the actual capabilities of this KYC endpoint remain unclear. It is live (returns a proper 402 challenge), but consumers should expect to experiment or contact the provider to learn the expected POST body and response structure.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","compliance check","ID verification","x402 KYC","onchain KYC"],"warnings":["No documentation found for this specific KYC endpoint — input schema and response format are unknown.","The /api/v1/kyc/verifications/61 path is not listed on the provider's public API catalog; it may be experimental or unlisted.","Docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no useful content.","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/61","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/61","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/response schemas, no OpenAPI spec, and the KYC endpoint isn't even listed on the provider's own catalog page. Effectively a stub 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'0.02':56,110 '402':193 'ID verification' 'KYC API' 'accept':49 'access':39 'account':77 'actual':179 'addit':159 'ai/ml':100 'analyt':99 'api':75,96,145 'base':5,18,63 'base-network' 'behind':147 'beyond':173 'bodi':210 'broader':89 'call':9,22,58,95 'capabl':180 'catalog':90,126 'challeng':73,176,194 'charg':53 'compliance check' 'connect':154 'consum':196 'contact':202 'content':160 'custom':36 'data':98,103 'describ':132 'doc':142 'document':129,172 'endpoint':3,16,28,117,184 'exampl':169 'expect':198,208 'experi':200 'field':137 'finance/web3':102 'format':140 'found':131 'handl':67 'header':72 'host':87 'howev':113 'identity verification' 'infer':101 'infrastructur':105 'inlin':68 'input':134 'key':76 'know':34 'know your customer' 'kyc':1,14,33,115,183 'kyc-verification' 'learn':206 'limit':80 'list':120 'live':189 'lowpaymentfee.com':30,86 'network':64 'no-api-key' 'onchain KYC' 'openapi':165 'page':146 'paid':6,19 'parent':84 'pay':93 'pay-per-cal':92 'pay-per-call' 'payment':43,65 'per':8,21,57,94,111 'per-cal':7,20 'post':50,209 'price':108,143 'prompt':156 'proper':192 'protocol':44 'provid':31,204 'public':125 'rate':79 'remain':185 'render':151 'request':51,112 'request/response':168 'requir':82,136 'resourc':47 'respons':139,212 'return':190 'schema':135 'servic':38 'site':85,123,149 'span':97 'spec':166 'specif':46 'structur':213 'unclear':186 'usdc':13,26,60 'usdc-settlement' 'util':106 'verif':2,15,37,116 'via':10,23,40,69 'wallet':155 'x402':11,24,42,71,175 'x402 KYC' 'x402-payment'","prices":[{"id":"a616a382-2d8e-4edf-a4dc-a2c9af58c309","listingId":"c77fada2-ef5e-43ec-918b-2afcbc908a59","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/61","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:08.389Z"}],"sources":[{"listingId":"c77fada2-ef5e-43ec-918b-2afcbc908a59","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/61","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:08.389Z","lastSeenAt":"2026-04-22T04:01:35.350Z"}],"details":{"listingId":"c77fada2-ef5e-43ec-918b-2afcbc908a59","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/61 \\\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 402 challenge requesting up to 20000 base units of USDC (0.02 USD) on Base network.","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/61"},{"claim":"The site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The site lists API categories including Data & Analytics, AI & ML, Finance & Web3, and Infrastructure — but not KYC.","source_url":"https://lowpaymentfee.com"}],"useCases":["Verifying user identity as part of onboarding flows","Compliance checks for financial or Web3 applications","Automated KYC screening triggered by AI agents"],"bestFor":["Developers needing per-call KYC without subscription commitments","Agent workflows that can pay with USDC on Base","Applications requiring keyless, instant-access identity verification"],"notFor":["Users who need detailed documentation or guaranteed SLAs before integrating","Bulk KYC processing where per-call pricing may not be cost-effective","Environments that cannot settle payments in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.556Z"},"updatedAt":"2026-04-22T04:01:35.350Z"}}