{"id":"fd7670d4-8d6a-4ea6-b49d-bab655fe95a3","shortId":"TMT4Qa","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/74`. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint probed (`/api/v1/kyc/verifications/74`) returns a live 402 challenge requesting payment of up to 20,000 base units of USDC (0.02 USD) per call. The platform advertises a flat $0.02/request pricing model with no API keys, no rate limits, and instant access. The endpoint accepts HTTP POST requests and returns `application/json` responses.\n\nDocumentation is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no substantive content. 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 resource path includes a numeric ID (`74`), but it is unclear whether this refers to a specific verification record, a verification type, or something else. Without documentation, the actual functionality and required request body remain unknown.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","per-call-pricing","json-response","http-post"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","compliance check","ID verification","x402 KYC","pay-per-call verification"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or request/response schema provided; the required input body is completely unknown.","The path '/api/v1/kyc/verifications/74' includes a hardcoded numeric ID whose meaning is unclear.","KYC/identity verification is a regulated category — no information on data handling, compliance certifications, or privacy policy is available.","The platform homepage does not list any KYC endpoints among its advertised APIs, raising questions about whether this endpoint is production-ready or experimental."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/74","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/74","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 format, response schema, or what the KYC verification actually does. No OpenAPI spec, no examples, and all doc pages are empty. This is effectively a stub 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'/request':115 '0.02':105,114 '000':100 '20':99 '402':92 '74':190 'ID verification' 'KYC API' 'accept':130 'access':39,127 'actual':212 'advertis':111 'ai/ml':60 'analyt':59 'api':56,120,145 'application/json':136 'base':5,18,82,101 'base-network' 'bodi':217 'broader':47 'call':9,22,55,108 'challeng':93 'compliance check' 'connect':153 'content':159 'crypto':63 'custom':36 'data':58 'descript':170 'doc':143 'document':138,210 'dozen':50 'els':208 'endpoint':3,16,28,68,86,129,177 'exampl':167 'expect':178 'extrem':140 'financ':62 'flat':113 'function':213 'http':131 'http-post' 'id':189 'identity verification' 'includ':186 'infer':61 'input':173 'instant':126 'json-response' 'key':121 'know':34 'know your customer' 'kyc':1,14,33,175 'kyc-verification' 'limit':124 'live':91 'lowpaymentfee.com':30 'model':117 'network':83 'numer':188 'offer':49 'openapi':163 'page':148 'paid':6,19 'part':44 'path':185 'pay':53 'pay-per-cal':52 'pay-per-call verification' 'payment':75,95 'per':8,21,54,107 'per-cal':7,20 'per-call-pricing' 'platform':48,71,110 'post':132 'price':116,144 'probe':87 'prompt':155 'protocol':76 'provid':31 'rate':123 'readm':147 'record':202 'refer':197 'remain':218 'render':150 'request':94,133,216 'request/response':166 'requir':215 'resourc':184 'respons':137 'return':89,135,182 'schema':164 'servic':38,66 'settl':77 'someth':207 'span':57 'spars':141 'specif':85,200 'substant':158 'type':205 'unclear':194 'unit':102 'unknown':219 'usd':106 'usdc':13,26,79,104 'usdc-settlement' 'use':72 'util':65 'verif':2,15,37,176,201,204 'via':10,23 'wallet':154 'whether':195 'without':209 'x402':11,24,74 'x402 KYC' 'x402-payment'","prices":[{"id":"0ad2d801-0e96-4dbc-b55b-cb54972380bb","listingId":"fd7670d4-8d6a-4ea6-b49d-bab655fe95a3","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/74","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:13.136Z"}],"sources":[{"listingId":"fd7670d4-8d6a-4ea6-b49d-bab655fe95a3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/74","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:13.136Z","lastSeenAt":"2026-04-22T02:30:56.717Z"}],"details":{"listingId":"fd7670d4-8d6a-4ea6-b49d-bab655fe95a3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/74 \\\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 live 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/74"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/74"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Performing KYC identity verification checks on demand","Integrating compliance verification into onboarding flows","Agent-driven identity checks with micropayment settlement"],"bestFor":["Developers needing pay-per-call KYC without API key management","Agents that can settle USDC payments on Base via x402","Low-volume or sporadic identity verification needs"],"notFor":["High-volume KYC pipelines requiring documented SLAs and schemas","Users who need detailed documentation or integration guides before adopting","Fiat-only payment environments with no crypto wallet capability"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.323Z"},"updatedAt":"2026-04-22T02:30:56.717Z"}}