{"id":"04c0f932-c5c9-4600-91dd-4dbb21b1bb90","shortId":"amZzCh","kind":"x402","title":"Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.","tagline":"Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides access to employee Social Security Number (SSN) data behind an x402 paywall. The specific resource `/api/v1/employees/12/ssn` returns SSN information for employee ID 12 when a valid x402 payment header is included with the POST request. Payment is settled in USDC on the Base network.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous pay-per-call APIs across data analytics, AI/ML inference, finance, and utility categories — all priced at $0.02 per request. The x402 challenge confirms the endpoint is live and accepts the \"exact\" payment scheme with a maximum amount of 20,000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a 300-second timeout window.\n\nNo API keys or rate limits are advertised. The platform emphasizes instant, keyless access using x402 protocol payments. Documentation pages beyond the landing page returned only a \"Connect wallet\" prompt with no further technical detail, so the exact request body schema and response format for this specific endpoint are unknown.","tags":[],"capabilities":["x402-payment","employee-ssn-lookup","usdc-base-settlement","pay-per-call","no-api-key"],"categories":["data","identity"],"synonyms":["employee SSN API","social security number lookup","PII endpoint","employee data API","x402 paid data","micropayment API"],"warnings":["Endpoint returns Social Security Numbers — highly regulated PII under US law (FCRA, state privacy laws). Verify legal compliance before use.","No documentation available beyond the landing page; request body and response schema are completely unknown.","No information on data source, accuracy, or freshness of employee SSN records.","The platform appears to be a demo or showcase site; legitimacy of returned data is unverified.","All documentation pages (/docs, /api, /pricing, /README) returned only a 'Connect wallet' prompt with no technical content."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/12/ssn","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/employees/12/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documented request/response format, and all docs pages returned only 'Connect wallet' with no usable content. The endpoint deals with highly sensitive PII (SSNs) with no visible compliance or data-source 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'0.02':12,26,107,139 '000':130 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':145 '12':56 '20':129 '300':150 '6':135 'PII endpoint' 'accept':119 'access':34,167 'across':95 'address':144 'advertis':161 'ai/ml':98 'amount':127 'analyt':97 'api':94,155 'base':9,23,76,131,147 'behind':42 'beyond':174 'bodi':193 'broader':84 'call':93 'categori':103 'challeng':112 'confirm':113 'connect':181 'data':4,18,41,96 'decim':136 'detail':188 'document':172 'emphas':164 'employe':2,16,36,54 'employee SSN API' 'employee data API' 'employee-ssn-lookup' 'endpoint':30,79,115,201 'equal':138 'exact':121,191 'financ':100 'format':197 'header':62 'id':55 'includ':64 'infer':99 'inform':52 'instant':165 'key':156 'keyless':166 'land':176 'limit':159 'live':117 'lowpaymentfee.com':32,86 'maximum':126 'micropay':7,21 'micropayment API' 'network':10,24,77 'no-api-key' 'number':39 'numer':89 'offer':88 'page':173,177 'part':81 'pay':91 'pay-per-cal':90 'pay-per-call' 'payment':61,69,122,140,171 'paywal':45 'per':13,27,92,108 'platform':85,163 'post':67 'price':105 'prompt':183 'protocol':170 'provid':33 'rate':158 'request':14,28,68,109,192 'resourc':48 'respons':196 'retriev':1,15 'return':50,178 'schema':194 'scheme':123 'second':151 'secur':38 'sent':142 'settl':71 'social':37 'social security number lookup' 'specif':47,200 'ssn':3,17,40,51 'technic':187 'timeout':152 'unit':132 'unknown':203 'usdc':73,134 'usdc-base-settlement' 'use':168 'util':102 'valid':59 'via':5,19 'wallet':182 'window':153 'x402':6,20,44,60,111,169 'x402 paid data' 'x402-payment'","prices":[{"id":"0a152573-1689-4ac6-8c0f-8ba7b2ea1af9","listingId":"04c0f932-c5c9-4600-91dd-4dbb21b1bb90","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/employees/12/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.030Z"}],"sources":[{"listingId":"04c0f932-c5c9-4600-91dd-4dbb21b1bb90","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/12/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.030Z","lastSeenAt":"2026-04-25T06:04:42.910Z"}],"details":{"listingId":"04c0f932-c5c9-4600-91dd-4dbb21b1bb90","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/12/ssn \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint is live and returns a 402 x402 challenge with x402Version 1","source_url":"https://lowpaymentfee.com/api/v1/employees/12/ssn"},{"claim":"Payment amount is 20,000 base units of USDC (USD Coin, 6 decimals = $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/12/ssn"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/12/ssn"}],"useCases":["Retrieving employee SSN data for payroll or HR integrations","Programmatic identity verification workflows requiring SSN","Agent-driven data retrieval with per-call crypto micropayments"],"bestFor":["Developers needing on-demand SSN data without subscription commitments","Automated agents that can settle x402 payments on Base","Low-volume, pay-as-you-go access to sensitive employee records"],"notFor":["Bulk SSN lookups requiring high throughput (no documented batch endpoint)","Users without USDC on Base network or x402-compatible payment tooling","Compliance-sensitive environments that require documented data provenance and audit trails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.516Z"},"updatedAt":"2026-04-25T06:04:42.910Z"}}