{"id":"9e57d3ca-b51d-42f9-a625-d0d4e0c913e3","shortId":"59NuPh","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 at `/api/v1/kyc/verifications/79`. It uses the x402 payment protocol, settling on the Base network in USDC. The endpoint accepts POST requests and returns JSON responses. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.\n\nThe broader lowpaymentfee.com platform offers a wide catalog of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and crypto data (price feeds, exchange rates, gas estimates), and infrastructure utilities (geocoding, validation, conversion). All endpoints are uniformly priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required — payment is handled entirely through the x402 protocol on the Base L2 network.\n\nThis specific endpoint appears to be a KYC verification resource. However, the crawled documentation is extremely thin — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further detail. There is no OpenAPI schema, no request/response examples, and no description of what input the KYC verification endpoint expects or what it returns. The endpoint is confirmed live (returns a proper 402 challenge), but the actual functionality and data format remain undocumented.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key","json-response"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","KYC API","identity validation","compliance check","x402 KYC"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.","No request or response schema provided; it is unknown what input the KYC endpoint expects or what it returns.","The path includes a numeric ID (/79) whose meaning is undocumented — it may be a specific verification type or a placeholder.","KYC/identity verification is a regulated category; no compliance certifications or data handling policies are documented.","The platform lists many API categories but this specific KYC endpoint is not listed on the homepage catalog."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/79","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/79","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 challenge, but there is zero documentation on request format, response schema, or what the KYC verification actually does. Docs pages are empty beyond a wallet-connect prompt. No OpenAPI spec, no examples, and the specific resource path (/verifications/79) is 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'0.02':82,131 '000':73 '20':72 '402':225 '6':78 'KYC API' 'KYC check' 'accept':57 'access':39 'actual':229 'advertis':67 'ai/ml':102 'analysi':105 'analyt':101 'api':98,136,178 'appear':162 'base':5,18,51,74,156 'base-network' 'broader':86 'call':9,22,97 'catalog':92 'challeng':66,226 'classif':107 'commit':144 'compliance check' 'confirm':220 'connect':187 'convers':124 'cost':70 'crawl':171 'crypto':111 'custom':36 'data':100,112,232 'decim':79 'descript':204 'detail':193 'doc':177 'document':172 'embed':108 'endpoint':3,16,28,56,126,161,211,218 'entir':149 'equal':81 'estim':118 'exampl':201 'exchang':115 'expect':212 'extrem':174 'feed':114 'financ':109 'format':233 'function':230 'gas':117 'geocod':122 'handl':148 'howev':169 'identity validation' 'identity verification' 'infer':103 'infrastructur':120 'input':207 'json':62 'json-response' 'key':137 'know':34 'know your customer' 'kyc':1,14,33,166,209 'kyc-verification' 'l2':157 'limit':140 'live':221 'lowpaymentfee.com':30,87 'maximum':69 'minimum':143 'network':52,158 'no-api-key' 'offer':89 'openapi':197 'page':182 'pay':7,20,95 'pay-per-cal':6,19,94 'pay-per-call' 'payment':46,146 'per':8,21,83,96,132 'platform':88 'post':58 'price':113,129,179 'prompt':189 'proper':224 'protocol':47,153 'provid':31 'rate':116,139 'readm':181 'remain':234 'render':184 'request':59,84,133 'request/response':200 'requir':145 'resourc':168 'respons':63 'return':61,216,222 'schema':198 'sentiment':104 'servic':38 'settl':48 'span':99 'specif':160 'summar':106 'thin':175 'undocu':235 'uniform':128 'unit':75 'usdc':13,26,54,77 'usdc-settlement' 'use':43 'util':121 'valid':123 'verif':2,15,37,167,210 'via':10,23 'wallet':188 'wide':91 'x402':11,24,45,65,152 'x402 KYC' 'x402-payment'","prices":[{"id":"5c9ef7ab-17e0-489d-ba37-b9b700258b9e","listingId":"9e57d3ca-b51d-42f9-a625-d0d4e0c913e3","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/79","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:10.753Z"}],"sources":[{"listingId":"9e57d3ca-b51d-42f9-a625-d0d4e0c913e3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/79","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:10.753Z","lastSeenAt":"2026-04-22T02:30:56.615Z"}],"details":{"listingId":"9e57d3ca-b51d-42f9-a625-d0d4e0c913e3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/79 \\\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 with x402Version 1, accepting USDC on Base with maxAmountRequired of 20000 base units ($0.02).","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/79"},{"claim":"The platform 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":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network.","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/79"}],"useCases":["Verifying customer identity as part of onboarding flows","Automated KYC checks in fintech or Web3 applications","Compliance verification without managing API keys or subscriptions"],"bestFor":["Developers needing on-demand KYC verification without subscription commitments","Agents or bots that can pay per-call via x402 on Base","Low-volume or bursty KYC verification workloads"],"notFor":["High-volume KYC pipelines requiring documented SLAs and detailed response schemas","Use cases requiring regulatory certifications or audit trails from the KYC provider","Users who need traditional API-key-based authentication"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.397Z"},"updatedAt":"2026-04-22T02:30:56.615Z"}}