{"id":"bb463420-2f41-4bf3-9c1e-3479c4454455","shortId":"KrxzUZ","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 given employee ID (in this case, employee 50). It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, all gated behind the x402 payment protocol. The endpoint accepts POST requests and returns JSON.\n\nPayment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units, which at 6 decimals for USDC equals $0.02. No API keys or rate limits are advertised — access is granted purely through the x402 payment header. The x402 challenge specifies a 300-second timeout for payment settlement.\n\nThe provider's landing page lists many other endpoints across data/analytics, AI/ML, finance, and utility categories, all at the same $0.02 price point. 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 SSN endpoint are unknown. The nature of the data returned (employee SSN) raises significant regulatory and privacy concerns — callers should verify the legitimacy and compliance of this data source before use.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data-lookup","ssn-retrieval","pay-per-request","json-response"],"categories":["data","identity"],"synonyms":["employee SSN lookup","social security number API","employee PII endpoint","x402 data API","pay-per-call employee data","Base USDC micropayment API"],"warnings":["Endpoint returns employee SSN data — highly sensitive PII subject to strict regulations (e.g., FCRA, state privacy laws). Verify data source legitimacy and compliance before use.","No request body schema or response schema documented anywhere in crawled material.","All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no technical content.","The provenance and authenticity of the employee data served by this endpoint is completely unknown."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/50/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/50/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","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 return only 'Connect wallet' with no content. The endpoint deals with highly sensitive PII (SSNs) with no visible compliance or data-source documentation, which is a significant red 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'000':100 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':91 '20':99 '300':133 '50':49 '6':105 'Base USDC micropayment API' 'accept':75 'access':119 'across':148 'advertis':118 'ai/ml':150 'amount':94 'api':62,112 'base':9,23,86,101 'behind':68 'beyond':164 'bodi':183 'broader':55 'call':97 'caller':208 'case':47 'categori':154 'challeng':130 'complianc':214 'concern':207 'connect':171 'contract':90 'data':4,18,39,198,217 'data/analytics':149 'decim':106 'detail':178 'document':162 'employe':2,16,34,43,48,200 'employee PII endpoint' 'employee SSN lookup' 'employee-data-lookup' 'endpoint':30,74,147,191 'equal':109 'exact':181 'financ':151 'format':187 'gate':67 'given':42 'grant':121 'header':127 'id':44 'json':80 'json-response' 'key':113 'land':142,166 'legitimaci':212 'limit':116 'list':144 'lowpaymentfee.com':32,65 'mani':145 'maximum':93 'micropay':7,21 'natur':195 'network':10,24,87 'number':37 'offer':63 'page':143,163,167 'part':52 'pay':59 'pay-per-call employee data' 'pay-per-request':58 'payment':71,81,126,137 'per':13,27,60,96 'point':161 'post':76 'price':160 'privaci':206 'prompt':173 'protocol':72 'provid':140 'pure':122 'rais':202 'rate':115 'regulatori':204 'request':14,28,61,77,182 'requir':95 'respons':186 'retriev':1,15 'return':33,79,168,199 'schema':184 'second':134 'secur':36 'settl':83 'settlement':138 'signific':203 'social':35 'social security number API' 'sourc':218 'specifi':131 'ssn':3,17,38,190,201 'ssn-retrieval' 'suit':56 'technic':177 'timeout':135 'unit':102 'unknown':193 'usdc':89,108 'usdc-base-network' 'use':88,220 'util':153 'verifi':210 'via':5,19 'wallet':172 'x402':6,20,70,125,129 'x402 data API' 'x402-payment'","prices":[{"id":"568bd759-44f5-48cb-b6db-2528fa8db4f2","listingId":"bb463420-2f41-4bf3-9c1e-3479c4454455","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/50/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":"2026-04-21T18:32:17.127Z"}],"sources":[{"listingId":"bb463420-2f41-4bf3-9c1e-3479c4454455","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/50/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.127Z","lastSeenAt":"2026-04-24T09:33:12.168Z"}],"details":{"listingId":"bb463420-2f41-4bf3-9c1e-3479c4454455","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/50/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 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/50/ssn"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/50/ssn"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Payment timeout is 300 seconds","source_url":"https://lowpaymentfee.com/api/v1/employees/50/ssn"}],"useCases":["Retrieving employee SSN for payroll or HR verification workflows","Programmatic identity verification requiring SSN data","Agent-driven data retrieval with per-request crypto micropayments"],"bestFor":["Developers needing on-demand employee SSN data without API key management","Agents that can settle x402 payments on Base with USDC","Low-volume, pay-as-you-go access to sensitive employee records"],"notFor":["Bulk data exports or high-throughput PII retrieval (no documented batch endpoint)","Users who cannot settle USDC payments on the Base network","Use cases requiring verified, compliance-certified identity data sources"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.154Z"},"updatedAt":"2026-04-24T09:33:12.168Z"}}