{"id":"12020290-a2cd-4eb6-afb2-01610a8839f3","shortId":"2YjTUH","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/7`. It uses the x402 payment protocol, accepting USDC on the Base network. The specific endpoint charges up to $0.02 per request (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 advertises a wide catalog of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with the same x402 payment model on Base.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what the KYC verification endpoint accepts or returns. The endpoint path includes a numeric ID (`/7`), but it is unclear whether this references a specific verification record or a versioned resource. Prospective users should expect to experiment or contact the provider for integration details.","tags":[],"capabilities":["x402-payment","usdc-base","kyc-verification","pay-per-call","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","x402 KYC","USDC pay-per-call","Base network API","compliance check"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","No OpenAPI or input/output schema provided for this endpoint","The path '/api/v1/kyc/verifications/7' contains a hardcoded ID whose meaning is unclear","KYC/identity verification is a regulated category — verify the provider's compliance posture before use","This specific KYC endpoint is not listed on the provider's homepage catalog, raising questions about its status"],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/7","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/7","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the KYC verification endpoint's expected input and output are entirely unknown. This is effectively a stub 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'/api/v1/kyc/verifications/7':41 '0.02':60,144 '000':64 '20':63 '6':70 'Base network API' 'KYC API' 'USDC pay-per-call' 'accept':48,195 'access':39,95 'advertis':102 'ai/ml':115 'analysi':118 'analyt':114 'api':73,111,161 'attach':82 'base':5,18,52,65,154 'broader':99 'call':9,22,110 'caller':80 'catalog':105 'charg':57 'classif':120 'compliance check' 'connect':170 'contact':228 'convers':137 'custom':36 'data':113,123 'decim':71 'descript':188 'detail':177,233 'doc':160 'document':155 'embed':121 'endpoint':3,16,28,56,140,194,199 'estim':131 'exampl':185 'exchang':126 'expect':224 'experi':226 'extrem':157 'feed':125 'finance/web3':122 'gas':130 'generat':138 'geocod':135 'header':87 'id':204 'identity verification' 'includ':201 'infer':116 'infrastructur':133 'integr':232 'key':74 'know':34 'know your customer' 'kyc':1,14,33,192 'kyc-verification' 'limit':77 'list':142 'lowpaymentfee.com':30,100 'model':152 'network':53 'no-api-key' 'numer':203 'openapi':181 'page':165 'paid':6,19 'path':200 'pay':108 'pay-per-cal':107 'pay-per-call' 'payment':46,86,92,151 'per':8,21,61,109,145 'per-cal':7,20 'platform':101 'price':124,162 'prompt':172 'proof':93 'prospect':221 'protocol':47 'provid':31,230 'quot':129 'rate':76,127 'readm':164 'record':216 'refer':212 'render':167 'request':62,146 'request/response':184 'requir':79 'resourc':97,220 'return':197 'schema':182 'sentiment':117 'servic':38 'simpli':81 'span':112 'spars':158 'specif':55,214 'summar':119 'technic':176 'token':128 'unclear':209 'unit':66 'usdc':13,26,49,68 'usdc-base' 'use':43 'user':222 'util':134 'valid':90,136 'verif':2,15,37,193,215 'version':219 'via':10,23 'wallet':171 'whether':210 'wide':104 'x':85 'x-payment':84 'x402':11,24,45,91,150 'x402 KYC' 'x402-payment'","prices":[{"id":"f1054b36-6530-4a64-9a2c-0670749f1614","listingId":"12020290-a2cd-4eb6-afb2-01610a8839f3","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/7","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:14.952Z"}],"sources":[{"listingId":"12020290-a2cd-4eb6-afb2-01610a8839f3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/7","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:14.952Z","lastSeenAt":"2026-04-22T01:01:05.617Z"}],"details":{"listingId":"12020290-a2cd-4eb6-afb2-01610a8839f3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/7 \\\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 valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/7"},{"claim":"The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base with 6 decimals","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/7"},{"claim":"Docs, API, pricing, and README pages render only a 'Connect wallet' prompt with no technical 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 lookups without managing API key subscriptions"],"bestFor":["Developers needing on-demand KYC verification without subscription commitments","Web3 applications that can pay with USDC on Base","Agents or bots that support x402 micropayments"],"notFor":["Users who need detailed documentation or OpenAPI specs before integrating","High-volume KYC pipelines requiring bulk pricing or SLAs","Applications that cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.217Z"},"updatedAt":"2026-04-22T01:01:05.617Z"}}