{"id":"6bc481ed-f244-4277-9ba9-cd367a9994d1","shortId":"5mqkhh","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/40`. It is part of a broader platform offering dozens of pay-per-request 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/40`) is live and returns a valid x402 challenge. The maximum amount required per request is 20,000 base units of USDC (6 decimals), which equals $0.02 USD — consistent with the platform's uniform $0.02/request pricing. Payment is made via the x402 \"exact\" scheme to a specified wallet address. No API keys are required; access is granted immediately upon payment. The platform advertises no rate limits and no minimum commitments.\n\nDocumentation is extremely sparse. The docs, API, pricing, 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 beyond a JSON MIME type. The endpoint path suggests it may verify a specific entity (ID 40), but this is speculative. The lack of documentation makes it difficult to assess the actual functionality or reliability of this service.","tags":[],"capabilities":["kyc-verification","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key"],"categories":["identity","compliance"],"synonyms":["KYC API","identity verification","know your customer","compliance check","ID verification","AML screening"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or request/response schema provided; input format and output structure are unknown.","The specific function of '/api/v1/kyc/verifications/40' (e.g., what ID 40 refers to) is unclear.","KYC/identity verification is a regulated category — no compliance certifications or data handling policies are documented.","This endpoint is not listed on the provider's homepage among their advertised APIs."],"endpointUrl":"https://lowpaymentfee.com/api/v1/kyc/verifications/40","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/40","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 effectively zero documentation — no OpenAPI schema, no request/response examples, no description of what the KYC endpoint actually does or accepts. The docs pages are empty. This is essentially a stub 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'/request':123 '0.02':114,122 '000':105 '20':104 '40':220 '6':110 'AML screening' 'ID verification' 'KYC API' 'access':39,143 'actual':235 'address':137 'advertis':151 'ai/ml':60 'amount':99 'analyt':59 'api':56,139,165 'assess':233 'base':5,18,82,106 'base-network' 'beyond':204 'broader':47 'call':9,22 'challeng':96 'commit':158 'compliance check' 'connect':174 'consist':116 'content':180 'crypto':63 'custom':36 'data':58 'decim':111 'descript':191 'difficult':231 'doc':164 'document':159,228 'dozen':50 'endpoint':3,16,28,68,86,198,210 'entiti':218 'equal':113 'exact':131 'exampl':188 'expect':199 'extrem':161 'financ':62 'function':236 'grant':145 'id':219 'identity verification' 'immedi':146 'infer':61 'input':194 'json':206 'key':140 'know':34 'know your customer' 'kyc':1,14,33,196 'kyc-verification' 'lack':226 'limit':154 'live':90 'lowpaymentfee.com':30 'made':127 'make':229 'maximum':98 'may':214 'mime':207 'minimum':157 'network':83 'no-api-key' 'offer':49 'openapi':184 'page':169 'part':44 'path':211 'pay':7,20,53 'pay-per-cal':6,19 'pay-per-request':52 'payment':75,125,148 'per':8,21,54,101 'platform':48,71,119,150 'price':124,166 'probe':87 'prompt':176 'protocol':76 'provid':31 'rate':153 'readm':168 'reliabl':238 'render':171 'request':55,102 'request/response':187 'requir':100,142 'return':92,203 'schema':185 'scheme':132 'servic':38,66,241 'settl':77 'span':57 'spars':162 'specif':85,217 'specifi':135 'specul':224 'substant':179 'suggest':212 'type':208 'uniform':121 'unit':107 'upon':147 'usd':115 'usdc':13,26,79,109 'usdc-settlement' 'use':72 'util':65 'valid':94 'verif':2,15,37,197 'verifi':215 'via':10,23,128 'wallet':136,175 'x402':11,24,74,95,130 'x402-payment'","prices":[{"id":"d2405ac0-3dbd-465b-bec4-3302b119983a","listingId":"6bc481ed-f244-4277-9ba9-cd367a9994d1","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/40","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:47:07.171Z"}],"sources":[{"listingId":"6bc481ed-f244-4277-9ba9-cd367a9994d1","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/kyc/verifications/40","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:47:07.171Z","lastSeenAt":"2026-04-22T04:01:35.302Z"}],"details":{"listingId":"6bc481ed-f244-4277-9ba9-cd367a9994d1","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/40 \\\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 of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/40"},{"claim":"The platform charges $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/kyc/verifications/40"}],"useCases":["Verifying customer identity as part of onboarding flows","Automated KYC checks in fintech or crypto applications","Compliance verification for regulated services"],"bestFor":["Developers needing simple pay-per-call KYC verification","Crypto-native applications that can settle payments in USDC on Base","Prototyping identity verification without API key management"],"notFor":["Production KYC workflows requiring documented SLAs and compliance certifications","Teams needing detailed API documentation and integration guides","Applications requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:16.679Z"},"updatedAt":"2026-04-22T04:01:35.302Z"}}