{"id":"c877978d-6c53-4d9a-81f7-263bf6a1a8cd","shortId":"eNgtZZ","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/34`. It uses the x402 payment protocol, accepting USDC on the Base network. The endpoint returns a 402 challenge requiring an X-PAYMENT header with payment proof before granting access. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD per request.\n\nThe broader lowpaymentfee.com platform advertises a range of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced uniformly at $0.02 per request. The platform emphasizes a no-API-key, no-rate-limit, pay-per-use model settled on the Base network. However, the specific KYC verification endpoint (`/api/v1/kyc/verifications/34`) is not listed on the site's public landing page, and no documentation, input schema, or example responses are available for it. The docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content.\n\nBecause there is no published documentation describing what this KYC endpoint accepts as input or returns as output, its actual functionality is unclear. The path suggests it may relate to retrieving or submitting a verification record (ID 34), but this is speculative. The endpoint is confirmed live (402 challenge captured), and the payment parameters are well-defined.","tags":[],"capabilities":["x402-payment","usdc-base","kyc-verification","pay-per-request","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","compliance check","ID verification","x402 KYC","Base USDC API"],"warnings":["No documentation available for this specific KYC endpoint — docs pages render only 'Connect wallet'","The endpoint path includes a hardcoded ID (34), suggesting it may be a specific resource rather than a general-purpose KYC API","This endpoint is not listed among the provider's publicly advertised APIs on the landing page","KYC/identity verification is a regulated category — verify the provider's compliance posture before relying on results","No input schema or output schema is documented; integration requires trial and error"],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/34","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/34","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 with clear payment parameters. However, there is no documentation, no input/output schema, no example requests or responses, and the specific KYC endpoint is not even listed on the provider's landing page. Functionality is essentially unknown beyond the path 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'0.02':89,118 '000':80 '20':79 '34':226 '402':58,236 '6':85 'Base USDC API' 'ID verification' 'KYC API' 'accept':48,200 'access':39,71 'actual':208 'advertis':97 'ai':106 'amount':74 'analyt':105 'api':101,127,176 'avail':169 'base':5,18,52,81,141 'broader':94 'call':9,22,77 'captur':238 'categori':102 'challeng':59,237 'compliance check' 'confirm':234 'connect':182 'content':188 'custom':36 'data':104 'decim':86 'defin':246 'describ':195 'doc':173 'document':162,194 'emphas':123 'endpoint':3,16,28,55,148,199,232 'equal':88 'exampl':166 'financ':109 'function':209 'grant':70 'header':65 'howev':143 'id':225 'identity verification' 'includ':103 'infrastructur':112 'input':163,202 'key':128 'know':34 'know your customer' 'kyc':1,14,33,146,198 'kyc-verification' 'land':158 'learn':108 'limit':132 'list':152 'live':235 'lowpaymentfee.com':30,95 'machin':107 'maximum':73 'may':216 'model':137 'network':53,142 'no-api-key':125 'no-rate-limit':129 'output':206 'page':159,177 'paid':6,19 'paramet':242 'path':213 'pay':134 'pay-per-request' 'pay-per-us':133 'payment':46,64,67,241 'per':8,21,76,91,119,135 'per-cal':7,20 'platform':96,122 'price':115,174 'prompt':184 'proof':68 'protocol':47 'provid':31 'public':157 'publish':193 'rang':99 'rate':131 'record':224 'relat':217 'render':179 'request':92,120 'requir':60,75 'respons':167 'retriev':219 'return':56,204 'schema':164 'servic':38 'settl':138 'site':155 'specif':145 'specul':230 'submit':221 'suggest':214 'unclear':211 'uniform':116 'unit':82 'usd':90 'usdc':13,26,49,84 'usdc-base' 'use':43,136 'util':113 'verif':2,15,37,147,223 'via':10,23 'wallet':183 'web3':110 'well':245 'well-defin':244 'x':63 'x-payment':62 'x402':11,24,45 'x402 KYC' 'x402-payment'","prices":[{"id":"323a6f9f-44ce-4d16-9a0e-a3c3d53ac5ad","listingId":"c877978d-6c53-4d9a-81f7-263bf6a1a8cd","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/34","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:02.980Z"}],"sources":[{"listingId":"c877978d-6c53-4d9a-81f7-263bf6a1a8cd","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/34","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:02.980Z","lastSeenAt":"2026-04-22T05:31:08.413Z"}],"details":{"listingId":"c877978d-6c53-4d9a-81f7-263bf6a1a8cd","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/34 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","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 maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/34"},{"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":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/34"},{"claim":"Docs, pricing, and API pages render only a 'Connect wallet' prompt with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic KYC verification checks for onboarding workflows","Agent-driven identity compliance lookups paid per call","Integrating KYC status checks into Web3 dApps without API key management"],"bestFor":["Developers needing pay-per-use KYC verification without subscriptions","AI agents that can settle x402 payments on Base","Web3 applications requiring on-demand compliance checks"],"notFor":["Users who need detailed API documentation or schemas before integrating","High-volume KYC pipelines requiring bulk pricing or SLAs","Non-crypto workflows that cannot settle USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.803Z"},"updatedAt":"2026-04-22T05:31:08.413Z"}}