{"id":"be83624b-ce2a-4957-96fb-a88a22f48070","shortId":"2AVcHD","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 returns employee Social Security Number (SSN) data for a specific employee record (ID 64) behind an x402 paywall. The endpoint accepts POST requests and is settled in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.\n\nThe provider lowpaymentfee.com hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. This particular endpoint is part of what appears to be a demo or sample employee data API. The response MIME type is application/json.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what fields are returned or what input the POST body expects. The endpoint is live (402 challenge confirmed), but the actual data served and its legitimacy should be carefully evaluated given the sensitive nature of SSN data.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","ssn-lookup","pay-per-call","no-api-key"],"categories":["data"],"synonyms":["employee SSN API","social security number lookup","employee record API","x402 data endpoint","micropayment API","Base USDC API"],"warnings":["Endpoint serves Social Security Number data — verify legal compliance (FCRA, state privacy laws, GDPR if applicable) before use.","No documentation available: /docs, /api, /pricing, /README all return only a wallet-connect prompt.","No OpenAPI schema or request/response examples provided; input body format is unknown.","Data provenance is unclear — it is unknown whether this is synthetic/demo data or real PII.","This appears to be a demo/sample site; do not assume production-grade reliability or data accuracy."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/64/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/64/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live with a valid x402 402 challenge, but documentation is essentially nonexistent — no OpenAPI schema, no request/response examples, no description of input parameters or output fields. The sensitive nature of SSN data with no provenance or compliance information is a significant 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'/docs':155 '/pricing':157 '/readme':159 '0.02':12,26,82,110 '000':73 '20':72 '402':199 '6':78 '64':46 'Base USDC API' 'accept':53 'actual':204 'advertis':68 'ai/ml':101 'analyt':100 'api':97,115,139 'appear':130 'application/json':145 'base':9,23,63,74 'behind':47 'beyond':147 'bodi':193 'broad':90 'call':96 'care':212 'catalog':91 'challeng':67,200 'commit':122 'confirm':201 'connect':165 'content':171 'data':4,18,39,99,138,205,220 'decim':79 'demo':134 'descript':182 'document':146 'employe':2,16,34,43,137 'employee SSN API' 'employee record API' 'employee-data' 'endpoint':30,52,125,196 'equal':81 'evalu':213 'exampl':179 'expect':194 'extrem':152 'field':185 'financ':103 'given':214 'host':88 'id':45 'infer':102 'input':190 'key':116 'land':149 'legitimaci':209 'limit':119 'live':198 'lowpaymentfee.com':32,87 'maxamountrequir':70 'micropay':7,21 'micropayment API' 'mime':142 'natur':217 'network':10,24,64 'no-api-key' 'number':37 'openapi':175 'page':150,160 'part':127 'particular':124 'pay':94 'pay-per-cal':93 'pay-per-call' 'paywal':50 'per':13,27,83,95,111 'post':54,192 'price':108 'prompt':167 'provid':86 'rate':118 'record':44 'request':14,28,55,84,112 'request/response':178 'respons':141 'retriev':1,15 'return':33,162,187 'sampl':136 'schema':176 'secur':36 'sensit':216 'serv':206 'servic':106 'settl':58 'social':35 'social security number lookup' 'span':98 'spars':153 'specif':42 'ssn':3,17,38,219 'ssn-lookup' 'substant':170 'type':143 'unit':75 'usdc':60,77 'usdc-base' 'util':105 'via':5,19 'wallet':166 'x402':6,20,49,66 'x402 data endpoint' 'x402-payment'","prices":[{"id":"2124d0c8-836d-43e5-a7b3-3d6ca89ae2c6","listingId":"be83624b-ce2a-4957-96fb-a88a22f48070","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/64/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":"2026-04-21T18:32:17.498Z"}],"sources":[{"listingId":"be83624b-ce2a-4957-96fb-a88a22f48070","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/64/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.498Z","lastSeenAt":"2026-04-24T06:33:03.126Z"}],"details":{"listingId":"be83624b-ce2a-4957-96fb-a88a22f48070","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/64/ssn \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/64/ssn"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/64/ssn"},{"claim":"All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) contain only a Connect wallet prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN data for payroll or HR integrations","Demonstrating x402 micropayment protocol with sensitive data endpoints","Agent-driven data retrieval with per-call crypto payment"],"bestFor":["Developers testing x402 payment flows on Base","Agents needing pay-per-call access to structured employee data","Scenarios requiring no-signup, keyless API access"],"notFor":["Production use involving real PII without verifying data provenance and compliance","Users who need detailed API documentation or OpenAPI specs before integrating","Bulk data retrieval where per-call pricing is inefficient"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:13.584Z"},"updatedAt":"2026-04-24T06:33:03.126Z"}}