{"id":"4d68ab39-2a8a-4146-85d9-5e96509fe40e","shortId":"EyjG2H","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 143) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on the Base network at $0.02 per call (maxAmountRequired of 20,000 base units with 6 decimals = $0.02). No API keys or rate limits are required; access is granted per-request via the x402 payment protocol.\n\nThe provider site (lowpaymentfee.com) hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. Documentation pages exist but appear to be stubs (only showing a \"Connect wallet\" prompt), so there is no detailed schema or field-level documentation for the SSN endpoint's request body or response format.\n\nThis specific endpoint raises significant concerns. It purports to return a person's Social Security Number, which is highly sensitive personally identifiable information (PII). There is no indication of authorization controls, data provenance, or compliance with privacy regulations. Users should exercise extreme caution and verify the legitimacy and legality of consuming such data before making any requests.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data-lookup","ssn-retrieval","pay-per-request","no-api-key"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","employee data API","x402 data access","micropayment SSN"],"warnings":["Endpoint purports to return Social Security Numbers — highly regulated PII. Verify legality and data provenance before use.","No documentation available: docs, API, pricing, and README pages all return only a 'Connect wallet' stub.","No request body schema or response schema documented anywhere.","No indication of data source legitimacy or compliance with privacy regulations (e.g., FCRA, GLBA, state privacy laws).","Single hardcoded employee ID (143) in the URL — unclear if other IDs are supported or if this is a demo."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/143/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/143/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty stubs. The endpoint claims to serve SSN data, which is highly sensitive PII with no visible compliance or authorization framework, warranting serious 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'000':74 '143':45 '20':73 '6':78 'PII endpoint' 'accept':52 'access':89 'ai/ml':117 'analyt':116 'api':82,113 'appear':134 'author':194 'base':9,23,65,75 'behind':46 'bodi':161 'broad':106 'call':70,112 'catalog':107 'caution':207 'complianc':199 'concern':170 'connect':141 'consum':215 'control':195 'crypto':120 'data':4,18,39,115,196,217 'decim':79 'detail':148 'document':130,154 'employe':2,16,34,43 'employee SSN lookup' 'employee data API' 'employee-data-lookup' 'endpoint':30,51,158,167 'exercis':205 'exist':132 'extrem':206 'field':152 'field-level':151 'financ':119 'format':164 'grant':91 'high':183 'host':104 'id':44 'identifi':186 'indic':192 'infer':118 'inform':187 'json':57 'key':83 'legal':213 'legitimaci':211 'level':153 'limit':86 'lowpaymentfee.com':32,103 'make':219 'maxamountrequir':71 'micropay':7,21 'micropayment SSN' 'network':10,24,66 'no-api-key' 'number':37,180 'page':131 'pay':110 'pay-per-cal':109 'pay-per-request' 'payment':58,98 'paywal':49 'per':13,27,69,93,111,128 'per-request':92 'person':176,185 'pii':188 'post':53 'price':125 'privaci':201 'prompt':143 'protocol':99 'proven':197 'provid':101 'purport':172 'rais':168 'rate':85 'regul':202 'request':14,28,54,94,129,160,221 'requir':88 'respons':163 'retriev':1,15 'return':33,56,174 'schema':149 'secur':36,179 'sensit':184 'servic':123 'settl':60 'show':139 'signific':169 'site':102 'social':35,178 'social security number API' 'span':114 'specif':42,166 'ssn':3,17,38,157 'ssn-retrieval' 'stub':137 'unit':76 'usdc':62 'usdc-base-network' 'user':203 'util':122 'verifi':209 'via':5,19,95 'wallet':142 'x402':6,20,48,97 'x402 data access' 'x402-payment'","prices":[{"id":"5496c9c4-4b89-4665-a814-a5e8df271a74","listingId":"4d68ab39-2a8a-4146-85d9-5e96509fe40e","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/143/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":"2026-04-21T18:32:14.493Z"}],"sources":[{"listingId":"4d68ab39-2a8a-4146-85d9-5e96509fe40e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/143/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.493Z","lastSeenAt":"2026-04-25T03:03:58.928Z"}],"details":{"listingId":"4d68ab39-2a8a-4146-85d9-5e96509fe40e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/143/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":"Endpoint returns 402 with x402 challenge advertising USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/143/ssn"},{"claim":"maxAmountRequired is 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) which equals $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/143/ssn"},{"claim":"Provider site lists all APIs at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (docs, api, pricing, README) show only a 'Connect wallet' prompt with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN data for authorized payroll or HR integrations","Demonstrating x402 pay-per-call protocol with sensitive data endpoints","Testing x402 payment flows against a live endpoint"],"bestFor":["Developers testing x402 payment protocol integrations","Authorized systems needing on-demand employee PII retrieval"],"notFor":["Unauthorized access to personal information — SSN data is regulated PII","Production use without verifying the provider's data legitimacy and legal compliance","Users who need detailed API documentation or response schemas"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.887Z"},"updatedAt":"2026-04-25T03:03:58.928Z"}}