{"id":"c31c9bb6-a916-4867-b6be-ea601211e8fe","shortId":"jFqVYK","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 SSN (Social Security Number) data for a specific employee record (ID 109) behind an x402 paywall. The endpoint accepts POST requests and is settled in USDC on the Base network. The x402 challenge confirms the endpoint is live and requires a payment of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) 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 falls outside those advertised categories and appears to serve sensitive personally identifiable information (an employee's SSN). No documentation, request schema, or response schema is available beyond the x402 challenge metadata. The docs, pricing, and API pages on the site return only a \"Connect wallet\" prompt with no further technical detail.\n\nBecause this endpoint exposes what purports to be a Social Security Number — highly regulated PII in the United States — users should exercise extreme caution. There is no indication of authorization controls, compliance certifications, or data provenance. The data may be synthetic/demo data, but this is not confirmed anywhere in the available material.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","ssn-lookup","per-call-micropayment"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","x402 employee data","Base USDC micropayment API","SSN retrieval"],"warnings":["Endpoint purports to return Social Security Numbers — highly regulated PII in the US. No compliance certifications, data provenance, or authorization controls are documented.","No request or response schema available; input/output format is entirely unknown.","Site documentation pages (docs, pricing, API, README) are effectively empty, returning only a 'Connect wallet' prompt.","Data may be synthetic/demo but this is not confirmed — treat with extreme caution.","This specific endpoint (/employees/109/ssn) is not listed among the provider's advertised API categories on the homepage."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/109/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/109/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 confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and the endpoint serves highly sensitive PII (SSN) with no visible compliance or authorization framework. The rest of the site's docs pages are empty beyond a wallet-connect 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'000':79 '109':46 '20':78 '6':89 'Base USDC micropayment API' 'PII endpoint' 'SSN retrieval' 'accept':53 'advertis':137 'ai/ml':109 'analyt':108 'anywher':232 'api':105,123,169 'appear':140 'author':214 'avail':159,235 'base':9,23,63,80 'behind':47 'beyond':160 'broad':98 'call':104 'catalog':99 'categori':138 'caution':208 'certif':217 'challeng':67,163 'commit':130 'complianc':216 'confirm':68,231 'connect':177 'control':215 'data':4,18,39,107,219,222,226 'decim':90 'detail':184 'doc':166 'document':152 'employe':2,16,34,43,148 'employee SSN lookup' 'employee-data' 'endpoint':30,52,70,133,187 'exercis':206 'expos':188 'extrem':207 'fall':134 'financ':111 'high':197 'host':96 'id':45 'identifi':145 'indic':212 'infer':110 'inform':146 'key':124 'limit':127 'live':72 'lowpaymentfee.com':32,95 'materi':236 'may':223 'metadata':164 'micropay':7,21 'network':10,24,64 'number':38,196 'outsid':135 'page':170 'particular':132 'pay':102 'pay-per-cal':101 'payment':76 'paywal':50 'per':13,27,91,103,119 'per-call-micropayment' 'person':144 'pii':199 'post':54 'price':116,167 'prompt':179 'proven':220 'provid':94 'purport':190 'rate':126 'record':44 'regul':198 'request':14,28,55,92,120,153 'requir':74 'respons':156 'retriev':1,15 'return':33,174 'schema':154,157 'secur':37,195 'sensit':143 'serv':142 'servic':114 'settl':58 'sinc':86 'site':173 'social':36,194 'social security number API' 'span':106 'specif':42 'ssn':3,17,35,150 'ssn-lookup' 'state':203 'synthetic/demo':225 'technic':183 'unit':81,202 'usd':85 'usdc':60,83,87 'usdc-base' 'use':88 'user':204 'util':113 'via':5,19 'wallet':178 'x402':6,20,49,66,162 'x402 employee data' 'x402-payment'","prices":[{"id":"e5ee36c8-abd8-40a6-9540-ae2937ab3ed6","listingId":"c31c9bb6-a916-4867-b6be-ea601211e8fe","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/109/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":"2026-04-21T18:32:13.557Z"}],"sources":[{"listingId":"c31c9bb6-a916-4867-b6be-ea601211e8fe","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/109/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.557Z","lastSeenAt":"2026-04-25T08:33:44.344Z"}],"details":{"listingId":"c31c9bb6-a916-4867-b6be-ea601211e8fe","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/109/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 in USDC (asset 0x8335…) on Base network, equating to $0.02.","source_url":"https://lowpaymentfee.com/api/v1/employees/109/ssn"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation, pricing, API, and README pages return only a 'Connect wallet' prompt with no technical content.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN records in a pay-per-call model (if authorized and compliant)","Demonstrating x402 micropayment protocol integration on Base","Testing x402 payment flows with a live endpoint"],"bestFor":["Developers experimenting with x402 protocol payments on Base","Testing micropayment-gated API access patterns","Prototyping pay-per-call data retrieval workflows"],"notFor":["Production use involving real SSNs without verified compliance and authorization","Any use case requiring HIPAA, SOC 2, or other PII-handling certifications","Bulk data export or high-volume lookups (no documented batch support)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.184Z"},"updatedAt":"2026-04-25T08:33:44.344Z"}}