{"id":"a364fe92-c18f-4ad9-88dd-d9e65c6bc3c8","shortId":"4DaawM","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 144) 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 provider lowpaymentfee.com hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. This particular endpoint is part of what appears to be an employee data API. However, the endpoint path explicitly references SSN retrieval, which raises significant regulatory and ethical concerns around personally identifiable information (PII) and sensitive data handling.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what input the POST body expects or what the response payload looks like. The endpoint is live (returns a valid 402 challenge), but the lack of documentation and the sensitive nature of SSN data warrant caution.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","ssn-lookup","per-request-pricing","no-api-key"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","employee data endpoint","PII retrieval API","x402 employee API","paywall SSN endpoint"],"warnings":["Endpoint serves Social Security Number data — subject to strict US federal and state privacy regulations (FCRA, GLBA, state PII laws). Ensure legal authorization before use.","No documentation available: /docs, /api, /pricing, /README all return only 'Connect wallet' with no content.","No OpenAPI schema or request/response examples provided — input format and output structure are unknown.","No visible compliance certifications, access controls, or audit logging for PII handling.","It is unclear whether this endpoint returns real or synthetic/demo data."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/144/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/144/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 challenge, but documentation is essentially nonexistent — no OpenAPI spec, no request/response examples, and no explanation of input parameters. The sensitive nature of SSN data with no visible compliance or authorization framework is a major red 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'/docs':169 '/pricing':171 '/readme':173 '0.02':12,26,81,109 '000':72 '144':46 '20':71 '402':218 '6':77 'PII retrieval API' 'accept':52 'advertis':67 'ai/ml':99 'analyt':98 'api':95,114,135 'appear':129 'around':151 'base':9,23,62,73 'base-network' 'behind':47 'beyond':161 'bodi':202 'broad':89 'catalog':90 'caution':233 'challeng':66,219 'commit':121 'concern':150 'connect':179 'content':185 'crypto':102 'data':4,18,39,97,134,158,231 'decim':78 'descript':196 'document':160,224 'employe':2,16,34,43,133 'employee SSN lookup' 'employee data endpoint' 'employee-data' 'endpoint':30,124,138,212 'equal':80 'ethic':149 'exampl':193 'expect':203 'explicit':140 'extrem':166 'financ':101 'gate':94 'handl':159 'host':87 'howev':136 'id':45 'identifi':153 'infer':100 'inform':154 'input':199 'key':115 'lack':222 'land':163 'like':210 'limit':118 'live':214 'look':209 'lowpaymentfee.com':32,86 'maxamountrequir':69 'micropay':7,21 'natur':228 'network':10,24,63 'no-api-key' 'number':37 'openapi':189 'page':164,174 'part':126 'particular':123 'path':139 'payload':208 'payment':57 'paywal':50 'paywall SSN endpoint' 'per':13,27,82,110 'per-request-pricing' 'person':152 'pii':155 'post':53,201 'price':107 'prompt':181 'provid':85 'rais':145 'rate':117 'record':44 'refer':141 'regulatori':147 'request':14,28,54,83,111 'request/response':192 'respons':207 'retriev':1,15,143 'return':33,176,215 'schema':190 'secur':36 'sensit':157,227 'servic':105 'settl':56 'signific':146 'social':35 'social security number API' 'span':96 'spars':167 'specif':42 'ssn':3,17,38,142,230 'ssn-lookup' 'substant':184 'unit':74 'usdc':59,76 'usdc-settlement' 'util':104 'valid':217 'via':5,19 'wallet':180 'warrant':232 'x402':6,20,49,65,93 'x402 employee API' 'x402-gated':92 'x402-payment'","prices":[{"id":"68a7b652-8370-4ace-a219-47414967ac00","listingId":"a364fe92-c18f-4ad9-88dd-d9e65c6bc3c8","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/144/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":"2026-04-21T18:32:14.532Z"}],"sources":[{"listingId":"a364fe92-c18f-4ad9-88dd-d9e65c6bc3c8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/144/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.532Z","lastSeenAt":"2026-04-25T03:03:58.872Z"}],"details":{"listingId":"a364fe92-c18f-4ad9-88dd-d9e65c6bc3c8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/144/ssn \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/144/ssn"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/144/ssn"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN for authorized payroll or HR integrations","Programmatic access to sensitive employee records behind a micropayment wall","Agent-driven identity verification workflows requiring SSN data"],"bestFor":["Developers needing pay-per-call access to employee PII without API key management","Automated HR or payroll systems that can settle USDC on Base","x402-compatible agents requiring on-demand SSN lookups"],"notFor":["Unauthorized access to personal data — SSN retrieval has strict legal requirements (FCRA, GLBA, state privacy laws)","Use cases requiring documented request/response schemas or SLAs","Production systems needing audit trails or compliance certifications for PII handling"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.919Z"},"updatedAt":"2026-04-25T03:03:58.872Z"}}