{"id":"467eb6f1-b163-4206-8740-4c1e75ee617a","shortId":"SvkrhP","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 43) 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 pay-per-call API endpoints across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required. However, this specific endpoint is narrowly scoped: it returns SSN information for a single employee record.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema beyond the x402 outputSchema stub, and no description of what fields the response contains. The endpoint is live (returns a valid 402 challenge), but the nature of the data it serves — personally identifiable information (SSN) — raises significant regulatory and ethical concerns.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pii-retrieval","pay-per-call"],"categories":["data","pii"],"synonyms":["employee SSN lookup","social security number API","PII endpoint","x402 data API","micropayment employee data","Base USDC API"],"warnings":["Endpoint serves personally identifiable information (SSN) — ensure compliance with GDPR, CCPA, HIPAA, and other applicable regulations before use.","No documentation available beyond the x402 challenge; docs/pricing/README pages all show only 'Connect wallet'.","No OpenAPI spec or response schema provided — response format is unknown.","No authentication or authorization mechanism described beyond payment; unclear who is authorized to access this data.","Endpoint is scoped to a single hardcoded employee ID (43); unclear if other employee IDs are supported.","This may be a demo or test endpoint rather than a production data source."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/43/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/43/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 and returns a valid x402 402 challenge, but documentation is essentially nonexistent — no OpenAPI spec, no request/response schema, no examples. The data served (employee SSN) is highly sensitive PII with no visible compliance or authorization documentation. The listing is effectively a stub with significant regulatory red 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'000':71 '20':70 '402':193 '43':45 '6':76 'Base USDC API' 'PII endpoint' 'accept':51 'across':97 'advertis':66 'ai/ml':102 'analyt':101 'api':95,116,147 'base':9,23,61,72 'base-network' 'behind':46 'beyond':172 'broader':84 'call':94 'categori':98 'challeng':65,194 'commit':123 'concern':212 'connect':156 'contain':185 'data':4,18,39,100,200 'decim':77 'descript':179 'detail':163 'doc':146 'document':141 'employe':2,16,34,43,139 'employee SSN lookup' 'employee-data' 'endpoint':30,96,128,187 'equal':79 'ethic':211 'extrem':143 'field':182 'finance/web3':104 'howev':125 'id':44 'identifi':204 'includ':99 'infer':103 'inform':135,205 'infrastructur':106 'key':117 'limit':120 'live':189 'lowpaymentfee.com':32,85 'maxamountrequir':68 'micropay':7,21 'micropayment employee data' 'narrowli':130 'natur':197 'network':10,24,62 'number':37 'offer':87 'openapi':167 'outputschema':175 'page':151 'pay':92 'pay-per-cal':91 'pay-per-call' 'payment':56 'paywal':49 'per':13,27,81,93,112 'person':203 'pii-retrieval' 'platform':86 'post':52 'price':109,148 'prompt':158 'rais':207 'rate':119 'readm':150 'record':140 'regulatori':209 'render':153 'request':14,28,53,82,113 'request/response':170 'requir':124 'respons':184 'retriev':1,15 'return':33,133,190 'schema':171 'scope':131 'secur':36 'serv':202 'settl':55 'signific':208 'singl':138 'social':35 'social security number API' 'spars':144 'spec':168 'specif':42,127 'ssn':3,17,38,134,206 'stub':176 'technic':162 'unit':73 'usdc':58,75 'usdc-settlement' 'util':107 'valid':192 'varieti':89 'via':5,19 'wallet':157 'x402':6,20,48,64,174 'x402 data API' 'x402-payment'","prices":[{"id":"4cca51a1-678e-46e3-9287-4c56320e6dd1","listingId":"467eb6f1-b163-4206-8740-4c1e75ee617a","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/43/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":"2026-04-21T18:32:16.796Z"}],"sources":[{"listingId":"467eb6f1-b163-4206-8740-4c1e75ee617a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/43/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.796Z","lastSeenAt":"2026-04-24T12:04:39.064Z"}],"details":{"listingId":"467eb6f1-b163-4206-8740-4c1e75ee617a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/43/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/43/ssn"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/43/ssn"},{"claim":"All endpoints on the platform are priced at $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 a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN data programmatically behind a paywall","Demonstrating x402 micropayment protocol integration","Pay-per-call access to sensitive employee records"],"bestFor":["Developers testing x402 payment flows on Base","Applications needing on-demand employee PII retrieval with crypto settlement"],"notFor":["Production PII handling without verified compliance (GDPR, CCPA, SOC 2)","Bulk employee data exports","Users without USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.631Z"},"updatedAt":"2026-04-24T12:04:39.064Z"}}