{"id":"81234625-ef98-4916-9a95-431cef8af8df","shortId":"u5EUAj","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 (ID 173) behind an x402 paywall. It accepts POST requests and settles payments in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.\n\nThe broader lowpaymentfee.com platform offers a variety of x402-gated API endpoints across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access. However, this specific endpoint exposes what appears to be personally identifiable information (an employee's SSN), which raises significant regulatory and ethical concerns.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields are returned or what input the POST body expects. The endpoint is live (returns a valid 402 challenge), but the actual behavior after payment is entirely unknown from available materials.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","ssn-lookup","per-request-pricing"],"categories":["data","pii"],"synonyms":["employee SSN API","social security number lookup","x402 employee data","micropayment PII endpoint","Base USDC API"],"warnings":["This endpoint claims to return Social Security Numbers — a highly regulated category of PII. Use may violate FCRA, CCPA, GDPR, or other privacy laws depending on jurisdiction and authorization.","No documentation exists beyond the landing page listing. Request body format and response schema are completely unknown.","The SSN endpoint is for a hardcoded employee ID (173); it is unclear whether other employee IDs are supported or if this is a demo.","The legitimacy and data source of this endpoint cannot be verified from available materials. Exercise extreme caution."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/173/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/173/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request format, response schema, or actual data returned. The endpoint exposes what purports to be PII (SSN), raising serious regulatory red flags. No OpenAPI spec, no examples, and all doc pages are 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'000':71 '173':45 '20':70 '402':201 '6':76 'Base USDC API' 'accept':51 'access':124 'across':96 'actual':205 'addit':168 'advertis':66,115 'ai/ml':101 'analyt':100 'api':94,117,154 'appear':131 'avail':213 'base':9,23,61,72 'base-network' 'behavior':206 'behind':46 'bodi':192 'broader':84 'call':112 'categori':97 'challeng':65,202 'concern':147 'connect':163 'data':4,18,39,99 'decim':77 'descript':181 'detail':170 'doc':153 'document':148 'employe':2,16,34,43,138 'employee SSN API' 'employee-data' 'endpoint':30,95,128,195 'entir':210 'equal':79 'ethic':146 'exampl':178 'expect':193 'expos':129 'extrem':150 'field':184 'finance/web3':103 'gate':93 'howev':125 'id':44 'identifi':135 'includ':98 'infer':102 'inform':136 'infrastructur':105 'input':189 'instant':123 'key':118 'limit':121 'live':197 'lowpaymentfee.com':32,85 'materi':214 'maxamountrequir':68 'micropay':7,21 'micropayment PII endpoint' 'network':10,24,62 'number':37 'offer':87 'openapi':174 'page':158 'payment':56,208 'paywal':49 'per':13,27,81,111 'per-request-pricing' 'person':134 'platform':86,114 'post':52,191 'price':108,155 'prompt':165 'rais':142 'rate':120 'readm':157 'regulatori':144 'render':160 'request':14,28,53,82 'request/response':177 'retriev':1,15 'return':33,186,198 'schema':175 'secur':36 'settl':55 'signific':143 'social':35 'social security number lookup' 'spars':151 'specif':42,127 'ssn':3,17,38,140 'ssn-lookup' 'technic':169 'unit':73 'unknown':211 'usdc':58,75 'usdc-settlement' 'util':106 'valid':200 'varieti':89 'via':5,19 'wallet':164 'x402':6,20,48,64,92 'x402 employee data' 'x402-gated':91 'x402-payment'","prices":[{"id":"e5728008-dbb9-468d-a5b6-162d389d9969","listingId":"81234625-ef98-4916-9a95-431cef8af8df","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/173/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":"2026-04-21T18:32:15.154Z"}],"sources":[{"listingId":"81234625-ef98-4916-9a95-431cef8af8df","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/173/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.154Z","lastSeenAt":"2026-04-24T23:03:58.745Z"}],"details":{"listingId":"81234625-ef98-4916-9a95-431cef8af8df","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/173/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 advertises maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/173/ssn"},{"claim":"The platform prices all endpoints at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/173/ssn"},{"claim":"Docs, API, pricing, and README pages render only a Connect wallet prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN data for authorized payroll or HR integrations","Demonstrating x402 micropayment protocol usage on Base","Per-call access to sensitive employee records without API key management"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Systems that need on-demand SSN retrieval with per-call billing","Authorized HR or payroll services requiring programmatic SSN access"],"notFor":["Any use case that would violate privacy regulations (GDPR, CCPA, FCRA, etc.)","Production systems requiring documented schemas and SLAs","Bulk data retrieval — each call costs $0.02 with no batch endpoint documented"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.953Z"},"updatedAt":"2026-04-24T23:03:58.745Z"}}