{"id":"ca738313-474f-49ca-967b-26612446a463","shortId":"w8fHL8","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 165) behind an x402 paywall. It accepts POST requests and settles payments in USDC on the Base network using the x402 \"exact\" payment scheme.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers various pay-per-call APIs across categories including data analytics, AI/ML inference, finance, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no subscriptions required. Payment is made via the x402 protocol: callers attach an X-PAYMENT header containing a signed USDC payment on Base.\n\nThe specific endpoint `/api/v1/employees/165/ssn` is not listed on the provider's public landing page among their advertised API categories. It appears to serve sensitive personally identifiable information (PII). The x402 challenge confirms it is live and accepting payments at a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02. The response MIME type is application/json. No request body schema or response schema documentation was found beyond the x402 challenge metadata.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data-lookup","ssn-retrieval","per-call-micropayment","no-api-key","json-response"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","x402 employee data","pay-per-call SSN","Base USDC API","lowpaymentfee employee"],"warnings":["This endpoint returns Social Security Numbers (SSN), which is highly sensitive PII. Ensure compliance with all applicable privacy laws (e.g., CCPA, GLBA, state SSN protection statutes) before use.","The endpoint /api/v1/employees/165/ssn is NOT listed among the provider's publicly advertised APIs — it may be a test, demo, or undocumented route.","No request body schema or response body schema is documented; behavior must be inferred entirely from the x402 challenge.","All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no usable content.","The hardcoded employee ID (165) in the path suggests this may be a single-record demo rather than a general-purpose employee lookup."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/165/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/165/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 confirms pricing and network details, but this specific endpoint is not documented on the provider's site, no request/response schema is available, and the endpoint serves highly sensitive PII (SSN) with no visible compliance or authorization documentation. Docs pages returned only 'Connect wallet' with no substantive 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'0.02':12,26,101,188 '000':179 '165':46 '20':178 '6':184 'Base USDC API' 'PII endpoint' 'accept':52,172 'across':87 'advertis':152 'ai/ml':92 'among':150 'analyt':91 'api':86,106,153 'appear':156 'application/json':194 'attach':123 'base':9,23,62,135,180 'behind':47 'beyond':205 'bodi':197 'broader':76 'call':85 'caller':122 'categori':88,154 'challeng':166,208 'confirm':167 'contain':129 'data':4,18,39,90 'decim':185 'document':202 'employe':2,16,34,43 'employee SSN lookup' 'employee-data-lookup' 'endpoint':30,71,138 'equal':187 'exact':67 'financ':94 'found':204 'header':128 'id':45 'identifi':161 'includ':89 'infer':93 'inform':162 'infrastructur':96 'json-response' 'key':107 'land':148 'limit':110 'list':142 'live':170 'lowpaymentfee employee' 'lowpaymentfee.com':32,78 'made':117 'maxamountrequir':176 'metadata':209 'micropay':7,21 'mime':191 'network':10,24,63 'no-api-key' 'number':37 'offer':80 'page':149 'part':73 'pay':83 'pay-per-cal':82 'pay-per-call SSN' 'payment':57,68,115,127,133,173 'paywal':50 'per':13,27,84,102 'per-call-micropayment' 'person':160 'pii':163 'platform':77 'post':53 'price':99 'protocol':121 'provid':145 'public':147 'rate':109 'record':44 'request':14,28,54,103,196 'requir':114 'respons':190,200 'retriev':1,15 'return':33 'schema':198,201 'scheme':69 'secur':36 'sensit':159 'serv':158 'settl':56 'sign':131 'social':35 'social security number API' 'specif':42,137 'ssn':3,17,38 'ssn-retrieval' 'subscript':113 'type':192 'unit':181 'usdc':59,132,183 'usdc-base-network' 'use':64 'util':97 'various':81 'via':5,19,118 'x':126 'x-payment':125 'x402':6,20,49,66,120,165,207 'x402 employee data' 'x402-payment'","prices":[{"id":"89765848-3629-4a07-8c61-71c4001b02c0","listingId":"ca738313-474f-49ca-967b-26612446a463","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/165/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":"2026-04-21T18:32:15.273Z"}],"sources":[{"listingId":"ca738313-474f-49ca-967b-26612446a463","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/165/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.273Z","lastSeenAt":"2026-04-24T21:32:51.284Z"}],"details":{"listingId":"ca738313-474f-49ca-967b-26612446a463","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/165/ssn \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\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 (USD Coin, 6 decimals) on Base network, equaling $0.02.","source_url":"https://lowpaymentfee.com/api/v1/employees/165/ssn"},{"claim":"The provider advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The endpoint /api/v1/employees/165/ssn is not listed among the publicly advertised API categories on the landing page.","source_url":"https://lowpaymentfee.com"}],"useCases":["Programmatic retrieval of employee SSN for authorized payroll or HR integrations","Agent-driven identity verification workflows requiring SSN data","Automated compliance checks that need SSN cross-referencing"],"bestFor":["Developers needing pay-per-call access to employee PII without subscription overhead","AI agents that can settle x402 USDC payments on Base","Workflows requiring instant, keyless API access to sensitive records"],"notFor":["Bulk data exports or batch SSN lookups (single-record endpoint, no batch mode documented)","Users without a Base-compatible USDC wallet","Use cases where handling SSN data would violate applicable privacy regulations"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.827Z"},"updatedAt":"2026-04-24T21:32:51.284Z"}}