{"id":"649ef454-a9a6-412e-ae64-f5608a620557","shortId":"HfgPHb","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 93) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on the Base network using the x402 \"exact\" scheme.\n\nThe x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The provider's landing page confirms a flat $0.02/request pricing model across all their API endpoints, with no API keys, no rate limits, and instant access. The endpoint was live and returned a valid 402 challenge when probed.\n\nThe provider (lowpaymentfee.com) hosts a broader catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, and utility services — all at the same $0.02 price point. Documentation pages beyond the landing page were effectively empty (showing only \"Connect wallet\"), so there is no detailed schema documentation for request or response payloads for this specific endpoint.","tags":[],"capabilities":["x402-payment","usdc-base","employee-ssn-lookup","json-response","post-method","micropayment"],"categories":["data","pii"],"synonyms":["employee SSN API","social security number lookup","PII endpoint","employee data API","x402 SSN","paywall employee record"],"warnings":["Endpoint serves Social Security Numbers — highly regulated PII. No compliance documentation (SOC 2, HIPAA, etc.) is visible.","No request or response schema documented; payload structure must be guessed.","All documentation pages beyond the landing page are empty ('Connect wallet' only).","The endpoint is hardcoded to employee ID 93; unclear if other employee IDs are supported or how they are discovered.","No terms of service or data handling policies found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/93/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/93/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response documentation, no examples, and the docs pages are empty. The endpoint exposes highly sensitive PII (SSN) with no documented compliance or authorization 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'0.02':12,26,92,106,162 '000':81 '0x8335':86 '20':80 '2913':87 '402':133 '6':96 '93':46 'PII endpoint' 'accept':53 'access':124 'across':110 'advertis':76 'ai/ml':152 'analyt':151 'api':113,117,148 'base':9,23,66,82,89 'behind':47 'beyond':167 'broader':142 'catalog':143 'challeng':75,134 'confirm':103 'connect':176 'data':4,18,39,150 'decim':97 'detail':182 'document':165,184 'effect':172 'employe':2,16,34,43 'employee SSN API' 'employee data API' 'employee-ssn-lookup' 'empti':173 'endpoint':30,52,114,126,193 'equal':91 'exact':71 'financ':154 'flat':105 'gate':147 'given':93 'host':140 'id':45 'infer':153 'instant':123 'json':58 'json-response' 'key':118 'land':101,169 'limit':121 'live':128 'lowpaymentfee.com':32,139 'maxamountrequir':78 'micropay':7,21 'micropayment' 'model':109 'network':10,24,67 'number':37 'page':102,166,170 'payload':189 'payment':59 'paywal':50 'paywall employee record' 'per':13,27 'point':164 'post':54 'post-method' 'price':108,163 'probe':136 'provid':99,138 'rate':120 'record':44 'request':14,28,55,186 'respons':188 'retriev':1,15 'return':33,57,130 'schema':183 'scheme':72 'secur':36 'servic':157 'settl':61 'show':174 'social':35 'social security number lookup' 'span':149 'specif':42,192 'ssn':3,17,38 'unit':83 'usdc':63,85,94 'usdc-base' 'use':68 'util':156 'valid':132 'via':5,19 'wallet':177 'x402':6,20,49,70,74,146 'x402 SSN' 'x402-gated':145 'x402-payment'","prices":[{"id":"ed635ae6-6476-49fc-9d8b-906ecc8af957","listingId":"649ef454-a9a6-412e-ae64-f5608a620557","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/93/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":"2026-04-21T18:32:18.217Z"}],"sources":[{"listingId":"649ef454-a9a6-412e-ae64-f5608a620557","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/93/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:18.217Z","lastSeenAt":"2026-04-24T03:04:25.161Z"}],"details":{"listingId":"649ef454-a9a6-412e-ae64-f5608a620557","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/93/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":"x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/93/ssn"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/93/ssn"},{"claim":"Flat $0.02/request pricing, no API keys, no rate limits","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving employee SSN data for payroll or HR integrations","Programmatic access to sensitive employee identifiers behind a micropayment wall","Agent-driven identity verification workflows requiring SSN data"],"bestFor":["Developers needing on-demand SSN retrieval without API key management","Agents that can settle x402 USDC payments on Base","Low-volume, pay-per-use access to sensitive employee records"],"notFor":["Bulk SSN retrieval (no batch endpoint documented)","Users who cannot transact in USDC on Base network","Production PII workflows requiring compliance certifications (none documented)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:12.569Z"},"updatedAt":"2026-04-24T03:04:25.161Z"}}