{"id":"301b9123-ae73-47b4-b071-a000f46bb6c2","shortId":"M6eQn9","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 51). It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, all gated behind the x402 payment protocol. Payment is settled in USDC on the Base network at $0.02 per request (20,000 base units with 6 decimals = $0.02).\n\nThe endpoint accepts POST requests and returns JSON. No API keys or accounts are required — callers authenticate purely via the X-PAYMENT header carrying a signed x402 payment. The provider advertises no rate limits and instant access. The x402 challenge is live and well-formed, returning a standard 402 response with payment parameters.\n\nNote: This endpoint serves sensitive personally identifiable information (SSN). Consumers should exercise extreme caution regarding legal compliance (e.g., FCRA, state privacy laws, GDPR) before calling this endpoint. The legitimacy and legality of this data source is unverified. The broader lowpaymentfee.com site lists many other API categories (analytics, AI/ML, finance, infrastructure) all at the same $0.02 price point, but documentation pages beyond the landing page returned only a \"Connect wallet\" stub with no further detail.","tags":[],"capabilities":["x402-payment","employee-ssn-lookup","usdc-base-settlement","pay-per-request","no-api-key","json-response"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","x402 data API","micropayment SSN","employee data API"],"warnings":["This endpoint serves Social Security Numbers — highly regulated PII. Legal compliance (FCRA, state privacy laws, GDPR) is the caller's responsibility and the data source legitimacy is unverified.","No documentation, response schema, or examples are available beyond the landing page.","All secondary pages (docs, pricing, README, api) returned only a 'Connect wallet' stub — the provider's documentation is effectively empty.","The broader lowpaymentfee.com site lists many diverse API categories at identical pricing, which may indicate a demo or placeholder service rather than a production data source."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/51/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/51/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint exists and accepts payments. However, there is no OpenAPI schema, no response examples, no documentation beyond a landing page stub, and the endpoint serves highly sensitive PII (SSN) with no verifiable legal basis or data provenance. The docs, pricing, and README pages all returned only 'Connect wallet' with no 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'000':87 '20':86 '402':144 '51':49 '6':91 'PII endpoint' 'accept':96 'access':131 'account':106 'advertis':125 'ai/ml':196 'analyt':195 'api':62,103,193 'authent':110 'base':9,23,80,88 'behind':68 'beyond':209 'broader':55,187 'call':61,173 'caller':109 'carri':118 'case':47 'categori':194 'caution':162 'challeng':134 'complianc':165 'connect':216 'consum':158 'data':4,18,39,182 'decim':92 'detail':222 'document':207 'e.g':166 'employe':2,16,34,43,48 'employee SSN lookup' 'employee data API' 'employee-ssn-lookup' 'endpoint':30,95,151,175 'exercis':160 'extrem':161 'fcra':167 'financ':197 'form':140 'gate':67 'gdpr':171 'given':42 'header':117 'id':44 'identifi':155 'inform':156 'infrastructur':198 'instant':130 'json':101 'json-response' 'key':104 'land':211 'law':170 'legal':164,179 'legitimaci':177 'limit':128 'list':190 'live':136 'lowpaymentfee.com':32,65,188 'mani':191 'micropay':7,21 'micropayment SSN' 'network':10,24,81 'no-api-key' 'note':149 'number':37 'offer':63 'page':208,212 'paramet':148 'part':52 'pay':59 'pay-per-cal':58 'pay-per-request' 'payment':71,73,116,122,147 'per':13,27,60,84 'person':154 'point':205 'post':97 'price':204 'privaci':169 'protocol':72 'provid':124 'pure':111 'rate':127 'regard':163 'request':14,28,85,98 'requir':108 'respons':145 'retriev':1,15 'return':33,100,141,213 'secur':36 'sensit':153 'serv':152 'settl':75 'sign':120 'site':189 'social':35 'social security number API' 'sourc':183 'ssn':3,17,38,157 'standard':143 'state':168 'stub':218 'suit':56 'unit':89 'unverifi':185 'usdc':77 'usdc-base-settlement' 'via':5,19,112 'wallet':217 'well':139 'well-form':138 'x':115 'x-payment':114 'x402':6,20,70,121,133 'x402 data API' 'x402-payment'","prices":[{"id":"3b6ca41d-d192-4908-8143-21415592b6b8","listingId":"301b9123-ae73-47b4-b071-a000f46bb6c2","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/51/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":"2026-04-21T18:32:17.059Z"}],"sources":[{"listingId":"301b9123-ae73-47b4-b071-a000f46bb6c2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/51/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.059Z","lastSeenAt":"2026-04-24T10:33:55.597Z"}],"details":{"listingId":"301b9123-ae73-47b4-b071-a000f46bb6c2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/51/ssn \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-token>\"","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/employees/51/ssn","method":"POST","headers":{"X-PAYMENT":"<signed-x402-payment-token>","Content-Type":"application/json"}},"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/51/ssn"},{"claim":"The site advertises $0.02 per request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/51/ssn"}],"useCases":["Retrieving employee SSN for payroll or HR verification workflows","Automated identity verification pipelines requiring SSN data","Agent-driven compliance checks that need SSN cross-referencing"],"bestFor":["Developers needing on-demand SSN retrieval without subscription commitments","AI agents that can settle x402 payments on Base network","Pay-per-call access to employee PII data"],"notFor":["Use cases where SSN data sourcing must be FCRA-compliant and auditable","Bulk data exports or high-volume batch processing (no documented batch endpoint)","Users who cannot transact in USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.224Z"},"updatedAt":"2026-04-24T10:33:55.597Z"}}