{"id":"2e2b3162-83ca-4cc9-9413-418a08a0e729","shortId":"L7v8bv","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 (employee ID 18). It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, all gated behind the x402 payment protocol. Payment is settled in USDC on the Base network.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. The maxAmountRequired is 20000 base units of USDC (which uses 6 decimals), equating to $0.02 per request. The provider advertises a flat $0.02/request pricing across all their endpoints, with no API keys, no rate limits, and instant access. No OpenAPI schema, detailed documentation, or example responses were found beyond the x402 challenge itself.\n\nThis endpoint raises significant concerns. It purports to return personally identifiable information (a Social Security Number), which is highly regulated data in the United States. There is no documentation explaining the data source, whether the data is synthetic/test data, or what legal basis exists for its distribution. Prospective consumers should exercise extreme caution and verify the legitimacy and legality of this data before use.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data-lookup","ssn-retrieval","pay-per-request","no-api-key"],"categories":["data","pii"],"synonyms":["employee SSN lookup","social security number API","employee data endpoint","PII retrieval API","x402 data access","lowpaymentfee API"],"warnings":["Endpoint claims to return Social Security Numbers — highly regulated PII in the US. No documentation on data source, legality, or whether data is synthetic.","No OpenAPI schema or response examples available; actual response format is unknown.","Documentation pages (/docs, /api, /pricing, /README) returned no meaningful content beyond 'Connect wallet'.","Data provenance and compliance status are completely undocumented — use at your own legal risk."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/18/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/18/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 (402 challenge captured) with clear pricing, but there is no OpenAPI schema, no documentation, no example responses, and the endpoint deals with highly sensitive PII (SSN) with no explanation of data provenance or legality. The crawled docs/pricing/API pages returned only 'Connect wallet' with no substantive 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'0.02':12,26,106,114 '18':47 '20000':95 '6':102 'PII retrieval API' 'accept':89 'access':130 'across':117 'advertis':111 'api':60,123 'base':9,23,78,96 'basi':188 'behind':66 'beyond':141 'broader':53 'caution':198 'challeng':82,144 'concern':150 'confirm':83 'consum':194 'data':4,18,39,166,177,181,184,207 'decim':103 'detail':134 'distribut':192 'document':135,174 'employe':2,16,34,43,45 'employee SSN lookup' 'employee data endpoint' 'employee-data-lookup' 'endpoint':30,85,120,147 'equat':104 'exampl':137 'exercis':196 'exist':189 'explain':175 'extrem':197 'flat':113 'found':140 'gate':65 'high':164 'id':46 'identifi':156 'inform':157 'instant':129 'key':124 'legal':187,204 'legitimaci':202 'limit':127 'live':87 'lowpaymentfee API' 'lowpaymentfee.com':32,63 'maxamountrequir':93 'micropay':7,21 'network':10,24,79 'no-api-key' 'number':37,161 'offer':61 'openapi':132 'part':50 'pay':57 'pay-per-request':56 'payment':69,71 'per':13,27,58,107 'person':155 'post':90 'price':116 'prospect':193 'protocol':70 'provid':110 'purport':152 'rais':148 'rate':126 'record':44 'regul':165 'request':14,28,59,91,108 'respons':138 'retriev':1,15 'return':33,154 'schema':133 'secur':36,160 'settl':73 'signific':149 'social':35,159 'social security number API' 'sourc':178 'specif':42 'ssn':3,17,38 'ssn-retrieval' 'state':170 'suit':54 'synthetic/test':183 'unit':97,169 'usdc':75,99 'usdc-base-network' 'use':101,209 'verifi':200 'via':5,19 'whether':179 'x402':6,20,68,81,143 'x402 data access' 'x402-payment'","prices":[{"id":"4ae449aa-f689-42bd-b91f-c559c06b2e35","listingId":"2e2b3162-83ca-4cc9-9413-418a08a0e729","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/18/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":"2026-04-21T18:32:15.785Z"}],"sources":[{"listingId":"2e2b3162-83ca-4cc9-9413-418a08a0e729","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/18/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.785Z","lastSeenAt":"2026-04-24T18:33:29.685Z"}],"details":{"listingId":"2e2b3162-83ca-4cc9-9413-418a08a0e729","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/18/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/18/ssn"},{"claim":"The provider advertises $0.02/request flat pricing 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/employees/18/ssn"}],"useCases":["Retrieving employee SSN data for a specific employee record","Testing x402 payment protocol integration with a data endpoint","Demonstrating pay-per-request micropayment flows on Base"],"bestFor":["Developers testing x402 payment protocol integrations","Exploring micropayment-gated API patterns on Base network"],"notFor":["Production use involving real PII without legal compliance verification","Any use case requiring documented data provenance or regulatory compliance","Bulk data retrieval (single employee ID hardcoded in path)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.11Z"},"updatedAt":"2026-04-24T18:33:29.685Z"}}