{"id":"ab0206b0-1e71-4da6-b328-e18479e1a428","shortId":"DWFaTc","kind":"x402","title":"Pay-per-call customer data endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call customer data endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at `/api/v1/customers/95` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol on the Base network, accepting USDC (USD Coin) for payment. The specific endpoint probed serves a \"Premium API Access\" resource returning JSON via POST.\n\nThe platform advertises a flat $0.02 per request across all its endpoints, with no API keys, no rate limits, no minimums, and instant access. The x402 challenge confirms the endpoint is live, requesting a maximum of 20,000 base units of USDC (0.02 USDC = $0.02) on Base, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The payment timeout is 300 seconds.\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 the `/api/v1/customers/95` endpoint actually returns. The endpoint path suggests customer record retrieval (possibly a demo or sample resource), but the actual payload structure is unknown. The platform lists many other endpoints on its landing page, but none have documented schemas or example responses.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","no-api-key","customer-data"],"categories":["data","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","customer endpoint","premium API access"],"warnings":["No OpenAPI schema or request/response documentation available","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The purpose and response format of /api/v1/customers/95 is undocumented — the path suggests customer data but this is unconfirmed","The platform lists many endpoints but none have published schemas or examples"],"endpointUrl":"https://lowpaymentfee.com/api/v1/customers/95","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/customers/95","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 pricing, but there is zero documentation on request parameters, response schema, or what the endpoint actually does. Docs pages are empty beyond a wallet connect prompt. Effectively a stub 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'/request':17,34 '0.02':16,33,103,140,142 '000':135 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':148 '20':134 '300':153 'Base network API' 'USDC micropayment API' 'accept':78 'access':92,121 'across':106 'actual':193,210 'address':147 'advertis':100 'ai/ml':61 'analyt':60 'api':57,91,112,161 'base':9,26,76,136,144 'base-network' 'call':4,21 'challeng':124 'coin':81 'collect':51 'confirm':125 'connect':170 'content':176 'custom':5,22,199 'customer endpoint' 'customer-data' 'data':6,23,59 'demo':204 'descript':187 'doc':160 'document':155,228 'enabl':38 'endpoint':7,24,39,68,86,109,127,192,196,220 'exampl':184,231 'extrem':157 'finance/web3':63 'flat':102 'infer':62 'infrastructur':65 'instant':120 'json':95 'json-response' 'key':113 'land':223 'limit':116 'list':217 'live':129 'lowpaymentfee' 'lowpaymentfee.com':46 'mani':218 'maximum':132 'minimum':118 'network':77 'no-api-key' 'none':226 'offer':49 'openapi':180 'page':165,224 'paid':145 'part':43 'path':197 'pay':2,19,54 'pay-per-cal':1,18 'pay-per-call API' 'pay-per-request':53 'payload':211 'payment':72,83,150 'per':3,20,55,104 'platform':47,99,216 'possibl':202 'post':97 'premium':90 'premium API access' 'price':162 'probe':87 'prompt':172 'protocol':73 'rate':115 'readm':164 'record':200 'render':167 'request':56,105,130 'request/response':183 'resourc':93,207 'respons':232 'retriev':201 'return':94,194 'sampl':206 'schema':181,229 'second':154 'serv':88 'settl':12,29 'span':58 'spars':158 'specif':85 'structur':212 'substant':175 'suggest':198 'timeout':151 'unit':137 'unknown':214 'usd':80 'usdc':14,31,79,139,141 'usdc-settlement' 'use':69 'util':66 'via':10,27,96 'wallet':171 'x402':11,28,37,71,123 'x402 API' 'x402-enabled':36 'x402-payment'","prices":[{"id":"323065e1-18b5-43b6-9aec-9976c2e9c55b","listingId":"ab0206b0-1e71-4da6-b328-e18479e1a428","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/customers/95","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:38:15.252Z"}],"sources":[{"listingId":"ab0206b0-1e71-4da6-b328-e18479e1a428","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/customers/95","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:38:15.252Z","lastSeenAt":"2026-04-28T13:33:07.578Z"}],"details":{"listingId":"ab0206b0-1e71-4da6-b328-e18479e1a428","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/customers/95 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Platform charges $0.02 per request with no API keys, no rate limits, no minimums","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge confirms maxAmountRequired of 20000 base units of USDC (0.02 USD) on Base network","source_url":"https://lowpaymentfee.com/api/v1/customers/95"},{"claim":"Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with 300 second timeout","source_url":"https://lowpaymentfee.com/api/v1/customers/95"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/customers/95"},{"claim":"Platform offers endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving customer data records via a single paid API call","Demonstrating x402 payment protocol integration on Base","Agent-driven data access without API key provisioning"],"bestFor":["Developers exploring x402 payment protocol integrations","Agents needing keyless, pay-per-call data access on Base","Low-volume or sporadic API consumers who want no commitments"],"notFor":["Production workloads requiring documented schemas and SLAs","High-volume use cases where per-request pricing adds up","Users who need detailed API documentation before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:42.427Z"},"updatedAt":"2026-04-28T13:33:07.578Z"}}