{"id":"176ce34c-f3ef-4ab8-af67-72cee5db85f3","shortId":"4mRjBu","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/73` accepts POST requests and charges $0.02 per call in USDC on the Base network. Payment is handled inline via the x402 header — no API keys, accounts, or rate limits are required.\n\nThe provider site (lowpaymentfee.com) hosts a broad 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 specific KYC verifications endpoint is not listed on the provider's public landing page, and no documentation, request schema, or response schema is available for it. The crawled docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no additional content.\n\nBecause there is no published documentation describing what input this KYC endpoint expects or what it returns, agents should treat this as an exploratory or experimental endpoint. The x402 challenge is live and well-formed, confirming the endpoint is operational, but the lack of any input/output schema or usage examples limits practical usability without trial-and-error.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-base","pay-per-call","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","KYC API","identity validation","compliance check","user verification"],"warnings":["No documentation available for this specific KYC verifications endpoint","No request or response schema published — input format is unknown","Endpoint /api/v1/kyc/verifications/73 is not listed on the provider's public API catalog","Docs, pricing, API, and README pages all returned only a 'Connect wallet' prompt with no content","KYC/identity verification is a regulated category — verify compliance before use in production"],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/73","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/73","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint is operational at $0.02/call in USDC on Base. However, there is no documentation, no input/output schema, and the specific KYC endpoint is not even listed on the provider's landing page. This is effectively a stub 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'0.02':54,107 'KYC API' 'KYC check' 'accept':49 'access':39 'account':74 'addit':154 'agent':173 'ai/ml':97 'analyt':96 'api':72,93,143 'avail':135 'base':5,18,61 'broad':86 'call':9,22,56,92 'catalog':87 'challeng':185 'charg':53 'compliance check' 'confirm':192 'connect':149 'content':155 'crawl':139 'custom':36 'data':95,100 'describ':162 'doc':140 'document':128,161 'endpoint':3,16,28,115,167,182,194 'error':214 'exampl':206 'expect':168 'experiment':181 'exploratori':179 'finance/web3':99 'form':191 'handl':65 'header':70 'host':84 'howev':110 'identity validation' 'identity verification' 'infer':98 'infrastructur':102 'inlin':66 'input':164 'input/output':202 'key':73 'know':34 'know your customer' 'kyc':1,14,33,113,166 'kyc-verification' 'lack':199 'land':124 'limit':77,207 'list':118 'live':187 'lowpaymentfee.com':30,83 'network':62 'no-api-key' 'oper':196 'page':125,144 'paid':6,19 'pay':90 'pay-per-cal':89 'pay-per-call' 'payment':43,63 'per':8,21,55,91,108 'per-cal':7,20 'post':50 'practic':208 'price':105,141 'prompt':151 'protocol':44 'provid':31,81,121 'public':123 'publish':160 'rate':76 'request':51,109,129 'requir':79 'resourc':47 'respons':132 'return':146,172 'schema':130,133,203 'servic':38 'site':82 'span':94 'specif':46,112 'treat':175 'trial':212 'trial-and-error':211 'usabl':209 'usag':205 'usdc':13,26,58 'usdc-base' 'user verification' 'util':103 'verif':2,15,37,114 'via':10,23,40,67 'wallet':150 'well':190 'well-form':189 'without':210 'x402':11,24,42,69,184 'x402-payment'","prices":[{"id":"226f387d-81bb-4498-b889-f5f3dc26cfe8","listingId":"176ce34c-f3ef-4ab8-af67-72cee5db85f3","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/73","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:10.184Z"}],"sources":[{"listingId":"176ce34c-f3ef-4ab8-af67-72cee5db85f3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/73","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:10.184Z","lastSeenAt":"2026-04-22T02:30:56.601Z"}],"details":{"listingId":"176ce34c-f3ef-4ab8-af67-72cee5db85f3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/73 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\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 (USDC, 6 decimals = $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/73"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com"},{"claim":"The provider lists APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categories but does not list a KYC endpoint","source_url":"https://lowpaymentfee.com"}],"useCases":["Verifying user identity as part of an onboarding flow","Performing KYC checks for compliance-regulated applications","Automated identity verification in Web3 or fintech workflows"],"bestFor":["Developers needing a simple pay-per-call KYC check without account setup","Agents that can pay with USDC on Base via x402","Prototyping compliance workflows with low per-request cost"],"notFor":["Production KYC pipelines requiring documented schemas and SLAs","Use cases needing detailed verification reports or audit trails","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.474Z"},"updatedAt":"2026-04-22T02:30:56.601Z"}}