{"id":"3041eb9a-d6bc-4fd5-a8d9-4ee0c5a78a6b","shortId":"GvaWwn","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/59` accepts POST requests and charges up to $0.02 per call in USDC on the Base network. No API keys or rate limits are required — callers simply attach an x402 payment header to each request.\n\nThe parent 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 verification endpoint's input schema, required POST body fields, and response format are not documented in any crawled page. The docs, pricing, and API pages all resolve to a minimal \"Connect wallet\" prompt with no further detail. Because of this, the exact capabilities and data returned by the KYC verification call remain unclear.\n\nPayment settles on Base using USDC (contract 0x8335…2913) to address 0x1A2B…85F3, with a maximum timeout of 300 seconds. The endpoint is live and returning a valid x402 challenge (HTTP 402).","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","per-call-pricing","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","AML verification","ID verification","customer verification","compliance check"],"warnings":["No documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no content.","Request body schema and response format are completely unknown; the POST body fields required for KYC verification are undocumented.","The endpoint path contains a hardcoded resource ID (/59) whose meaning is unclear.","No OpenAPI spec, no examples, and no AI plugin manifest found.","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/59","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/59","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 the request body schema, response format, or what the KYC verification actually checks. Docs pages are empty stubs. The endpoint path includes a hardcoded ID (59) with no explanation. Effectively a stub 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'0.02':56,110 '0x1a2b':181 '0x8335':177 '2913':178 '300':188 '402':201 '85f3':182 'AML verification' 'ID verification' 'KYC check' 'accept':49 'access':39 'address':180 'ai/ml':100 'analyt':99 'api':66,96,140 'attach':75 'base':5,18,63,173 'base-network' 'bodi':124 'broad':89 'call':9,22,58,95,167 'caller':73 'capabl':159 'catalog':90 'challeng':199 'charg':53 'compliance check' 'connect':147 'contract':176 'crawl':134 'custom':36 'customer verification' 'data':98,103,161 'detail':153 'doc':137 'document':131 'endpoint':3,16,28,118,191 'exact':158 'field':125 'finance/web3':102 'format':128 'header':79 'host':87 'howev':113 'http':200 'identity verification' 'infer':101 'infrastructur':105 'input':120 'key':67 'know':34 'know your customer' 'kyc':1,14,33,116,165 'kyc-verification' 'limit':70 'live':193 'lowpaymentfee.com':30,86 'maximum':185 'minim':146 'network':64 'no-api-key' 'page':135,141 'paid':6,19 'parent':84 'pay':93 'pay-per-cal':92 'payment':43,78,170 'per':8,21,57,94,111 'per-cal':7,20 'per-call-pricing' 'post':50,123 'price':108,138 'prompt':149 'protocol':44 'provid':31 'rate':69 'remain':168 'request':51,82,112 'requir':72,122 'resolv':143 'resourc':47 'respons':127 'return':162,195 'schema':121 'second':189 'servic':38 'settl':171 'simpli':74 'site':85 'span':97 'specif':46,115 'timeout':186 'unclear':169 'usdc':13,26,60,175 'usdc-settlement' 'use':174 'util':106 'valid':197 'verif':2,15,37,117,166 'via':10,23,40 'wallet':148 'x402':11,24,42,77,198 'x402-payment'","prices":[{"id":"675ff9b4-ca09-40e8-87a5-4699628b6c8a","listingId":"3041eb9a-d6bc-4fd5-a8d9-4ee0c5a78a6b","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/59","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:17.985Z"}],"sources":[{"listingId":"3041eb9a-d6bc-4fd5-a8d9-4ee0c5a78a6b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/59","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:17.985Z","lastSeenAt":"2026-04-22T01:01:05.797Z"}],"details":{"listingId":"3041eb9a-d6bc-4fd5-a8d9-4ee0c5a78a6b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/59 \\\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 valid x402 challenge with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/59"},{"claim":"All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/59"}],"useCases":["Verifying customer identity as part of onboarding flows","Performing KYC checks without managing API keys or subscriptions","Integrating identity verification into agent-driven workflows","Adding compliance checks to Web3 or DeFi applications"],"bestFor":["Developers needing pay-per-call KYC without subscription commitments","AI agents that can settle payments via x402 on Base","Web3 applications requiring on-demand identity verification"],"notFor":["Bulk KYC processing where per-call pricing is inefficient","Use cases requiring detailed documentation or SLA guarantees","Scenarios needing non-USDC or non-Base payment rails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.083Z"},"updatedAt":"2026-04-22T01:01:05.797Z"}}