{"id":"2ba2ec32-9e52-4f0b-a82b-18d09b302f2e","shortId":"78d8tr","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 (employee ID 44) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge.\n\nThe x402 challenge specifies a maxAmountRequired of 20,000 base units. Since USDC uses 6 decimals, this converts to $0.02 per request, consistent with the site's advertised flat pricing of $0.02/request across all endpoints. The provider advertises no API keys, no rate limits, and instant access — payment is the only authentication mechanism.\n\nThe broader lowpaymentfee.com platform offers a variety of x402-gated endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all at the same $0.02 price point. However, this specific endpoint deals with sensitive personally identifiable information (employee SSN), which raises significant regulatory and ethical concerns. No documentation beyond the landing page is available — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data","ssn-lookup","json-response","per-request-micropayment"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","x402 employee data","paid SSN endpoint","Base USDC micropayment API","employee PII endpoint"],"warnings":["This endpoint exposes Social Security Numbers (PII). Serving SSN data via a public pay-per-call API raises serious legal, regulatory, and ethical concerns (e.g., FCRA, state privacy laws, GDPR if applicable).","No documentation is available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.","The endpoint path is hardcoded to employee ID 44; it is unclear whether other employee IDs are supported or what the data source is.","No request body schema or response schema is documented; the output format is unknown beyond 'application/json'.","The legitimacy and data provenance of this endpoint cannot be verified from available materials."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/44/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/44/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and the endpoint path is hardcoded to a single employee ID. The docs pages are empty. The endpoint deals with highly sensitive PII (SSN) with no visible compliance or authorization 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'0.02':12,26,97,109,158 '000':86 '0x8335':70 '20':85 '2913':71 '44':47 '6':92 'Base USDC micropayment API' 'accept':54 'access':125 'across':111 'advertis':105,116 'ai/ml':147 'analyt':146 'api':118,190 'authent':130 'avail':187 'base':9,23,65,87 'behind':48 'beyond':182 'broader':133 'challeng':77,80 'concern':179 'connect':199 'consist':100 'content':205 'contract':69 'convert':95 'data':4,18,39,145,150 'deal':165 'decim':93 'doc':189 'document':181 'employe':2,16,34,43,45,171 'employee PII endpoint' 'employee SSN lookup' 'employee-data' 'endpoint':30,53,113,143,164 'ethic':178 'exact':75 'exact-schem':74 'finance/web3':149 'flat':106 'gate':142 'howev':161 'id':46 'identifi':169 'infer':148 'inform':170 'infrastructur':152 'instant':124 'json':59 'json-response' 'key':119 'land':184 'limit':122 'lowpaymentfee.com':32,134 'maxamountrequir':83 'mechan':131 'micropay':7,21 'network':10,24,66 'number':37 'offer':136 'page':185,194 'paid SSN endpoint' 'payment':60,126 'paywal':51 'per':13,27,98 'per-request-micropayment' 'person':168 'platform':135 'point':160 'post':55 'price':107,159,191 'prompt':201 'provid':115 'rais':174 'rate':121 'readm':193 'record':44 'regulatori':176 'render':196 'request':14,28,56,99 'retriev':1,15 'return':33,58 'scheme':76 'secur':36 'sensit':167 'settl':62 'signific':175 'sinc':89 'site':103 'social':35 'social security number API' 'span':144 'specif':42,163 'specifi':81 'ssn':3,17,38,172 'ssn-lookup' 'substant':204 'unit':88 'usdc':68,90 'usdc-base-network' 'use':67,91 'util':153 'varieti':138 'via':5,19 'wallet':200 'x402':6,20,50,79,141 'x402 employee data' 'x402-gated':140 'x402-payment'","prices":[{"id":"758c2695-904b-4f97-abee-e6fd115f449e","listingId":"2ba2ec32-9e52-4f0b-a82b-18d09b302f2e","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/44/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":"2026-04-21T18:32:17.106Z"}],"sources":[{"listingId":"2ba2ec32-9e52-4f0b-a82b-18d09b302f2e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/44/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.106Z","lastSeenAt":"2026-04-24T09:33:12.150Z"}],"details":{"listingId":"2ba2ec32-9e52-4f0b-a82b-18d09b302f2e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/44/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 specifies maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/44/ssn"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/44/ssn"},{"claim":"Site advertises $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving SSN for employee ID 44 via automated payment","Integrating employee PII lookup into payroll or HR workflows","Demonstrating x402 micropayment protocol for sensitive data access"],"bestFor":["Developers exploring x402 protocol implementations","Automated agents needing on-demand PII retrieval with crypto payment","Systems that require per-call payment without API key management"],"notFor":["Production use involving real employee SSNs without compliance review","Scenarios requiring bulk employee data retrieval","Users who cannot transact USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.178Z"},"updatedAt":"2026-04-24T09:33:12.150Z"}}