{"id":"590d899c-3356-4303-9c79-58a373e9d871","shortId":"v6NZk9","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/13`. It uses the x402 payment protocol, accepting USDC on the Base network. Each call costs $0.02 (20,000 base units of USDC with 6 decimals). The endpoint accepts POST requests and returns JSON.\n\nThe broader lowpaymentfee.com platform offers a suite of pay-per-request 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 priced at $0.02 per request with no API keys, no rate limits, and no commitments required — payment is handled entirely through the x402 protocol with USDC on Base.\n\nNote that while the specific KYC verification endpoint is confirmed live (returning a valid 402 challenge), there is no documentation describing the expected request body, response format, or what \"verifications/13\" specifically refers to. The docs, pricing, and API pages on the site all render only a wallet-connect prompt with no further detail. Treat this endpoint with caution until more documentation becomes available.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-base","pay-per-request","post-json"],"categories":["identity","compliance"],"synonyms":["KYC check","identity verification","know your customer","AML verification","ID verification","customer verification","compliance check"],"warnings":["No documentation available for request body or response schema","The path segment '/13' is unexplained — unclear if it refers to a specific verification type or record","All documentation pages (docs, pricing, API, README) render only a wallet-connect prompt with no content","KYC/identity verification is a regulated category — verify the provider's compliance credentials before use"],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/13","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/13","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 402 challenge, but there is zero documentation on request/response schemas, no OpenAPI spec, and the specific purpose of 'verifications/13' is unexplained. The docs pages are empty wallet-connect prompts. This is effectively a stub 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'0.02':57,119 '000':59 '20':58 '402':159 '6':65 'AML verification' 'ID verification' 'KYC check' 'accept':48,69 'access':39 'ai/ml':91 'analysi':94 'analyt':90 'api':87,124,182 'avail':208 'base':5,18,52,60,144 'becom':207 'bodi':169 'broader':76 'call':9,22,55 'caution':203 'challeng':160 'classif':96 'commit':131 'compliance check' 'confirm':154 'connect':193 'convers':113 'cost':56 'crypto':100 'custom':36 'customer verification' 'data':89,101 'decim':66 'describ':165 'detail':198 'doc':179 'document':164,206 'embed':97 'endpoint':3,16,28,68,115,152,201 'entir':136 'estim':107 'exchang':104 'expect':167 'feed':103 'financ':98 'format':171 'gas':106 'geocod':111 'handl':135 'identity verification' 'infer':92 'infrastructur':109 'json':74 'key':125 'know':34 'know your customer' 'kyc':1,14,33,150 'kyc-verification' 'limit':128 'live':155 'lowpaymentfee.com':30,77 'network':53 'note':145 'offer':79 'page':183 'pay':7,20,84 'pay-per-cal':6,19 'pay-per-request':83 'payment':46,133 'per':8,21,85,120 'platform':78 'post':70 'post-json' 'price':102,117,180 'prompt':194 'protocol':47,140 'provid':31 'rate':105,127 'refer':176 'render':188 'request':71,86,121,168 'requir':132 'respons':170 'return':73,156 'sentiment':93 'servic':38 'site':186 'span':88 'specif':149,175 'suit':81 'summar':95 'treat':199 'unit':61 'usdc':13,26,49,63,142 'usdc-base' 'use':43 'util':110 'valid':112,158 'verif':2,15,37,151 'verifications/13':174 'via':10,23 'wallet':192 'wallet-connect':191 'x402':11,24,45,139 'x402-payment'","prices":[{"id":"479a4a7e-2ce8-46b0-9d01-11da82fa314b","listingId":"590d899c-3356-4303-9c79-58a373e9d871","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/13","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:01.744Z"}],"sources":[{"listingId":"590d899c-3356-4303-9c79-58a373e9d871","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/13","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:01.744Z","lastSeenAt":"2026-04-22T05:31:08.332Z"}],"details":{"listingId":"590d899c-3356-4303-9c79-58a373e9d871","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/13 \\\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":"Endpoint returns a valid x402 402 challenge with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/13"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/13"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"maxAmountRequired is 20000 base units (USDC 6 decimals = $0.02)","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/13"}],"useCases":["Verifying customer identity as part of onboarding flows","Performing KYC checks before granting access to regulated services","Automating compliance verification in fintech applications"],"bestFor":["Developers needing pay-per-call KYC verification without API key management","Agents that can settle payments via x402 on Base with USDC","Applications requiring low-cost, on-demand identity checks"],"notFor":["Users who need detailed documentation or schema guarantees before integration","High-volume KYC pipelines requiring bulk pricing or SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.867Z"},"updatedAt":"2026-04-22T05:31:08.332Z"}}