{"id":"93530a69-4d16-4d62-9bc7-e83ebf7a66ee","shortId":"wLytRC","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, gated behind an x402 payment challenge. The specific resource probed is `/api/v1/employees/100/ssn`, which accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).\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 call. The platform advertises no API keys, no rate limits, and instant access. However, the employee SSN endpoint is not listed on the provider's public landing page among the advertised API categories, which raises questions about its intended audience and data sourcing.\n\nDocumentation 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 beyond the declared `application/json` MIME type. The endpoint is live (returns a valid 402 challenge), but the lack of documentation and the sensitive nature of SSN data warrant significant caution.","tags":[],"capabilities":["x402-payment","base-network","usdc-settlement","employee-data","ssn-lookup","json-response","post-method"],"categories":["data","identity"],"synonyms":["employee SSN API","social security number lookup","employee PII endpoint","x402 data API","paid SSN retrieval","employee identity data"],"warnings":["Endpoint serves Social Security Numbers—highly sensitive PII. Verify legal compliance (FCRA, state privacy laws, GDPR if applicable) before use.","This specific endpoint (/api/v1/employees/100/ssn) is NOT listed on the provider's public landing page among advertised APIs.","No documentation exists: /docs, /api, /pricing, and /README all return only a wallet-connect prompt with no content.","No request body schema or response schema is documented; integration requires blind experimentation.","Data provenance is completely unknown—there is no indication of where employee SSN data is sourced from."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/100/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/100/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 and returns a valid x402 challenge, but documentation is essentially nonexistent—no OpenAPI spec, no request/response examples, and the docs pages are empty. The endpoint deals with highly sensitive PII (SSN) with no explanation of data sourcing or compliance. It is not listed among the provider's advertised APIs. Score reflects minimal usable information and significant red 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'/api/v1/employees/100/ssn':56 '/docs':166 '/pricing':168 '/readme':170 '0.02':12,26,81,116 '000':85 '0x8335':74 '20':84 '2913':75 '402':221 '6':89 'accept':58 'access':130 'advertis':121,148 'ai/ml':106 'among':146 'analyt':105 'api':102,123,149 'application/json':211 'audienc':157 'base':9,23,69,86 'base-network' 'behind':46 'beyond':208 'bodi':199 'broad':96 'call':118 'catalog':97 'categori':150 'caution':237 'challeng':50,222 'connect':176 'content':182 'contract':73 'cost':79 'crypto':109 'data':4,18,39,104,159,234 'decim':90 'declar':210 'descript':193 'document':161,227 'employe':2,16,34,43,133 'employee PII endpoint' 'employee SSN API' 'employee identity data' 'employee-data' 'endpoint':30,135,215 'exampl':190 'expect':200 'extrem':163 'financ':108 'gate':45,101 'given':42 'host':94 'howev':131 'id':44 'infer':107 'input':196 'instant':129 'intend':156 'json':63 'json-response' 'key':124 'lack':225 'land':144 'like':207 'limit':127 'list':138 'live':217 'look':206 'lowpaymentfee.com':32,93 'maximum':78 'micropay':7,21 'mime':212 'natur':231 'network':10,24,70 'number':37 'openapi':186 'page':145,171 'paid SSN retrieval' 'payload':205 'payment':49,64 'per':13,27,82,117 'platform':120 'post':59,198 'post-method' 'price':114 'probe':54 'prompt':178 'provid':92,141 'public':143 'question':153 'rais':152 'rate':126 'request':14,28,60,83 'request/response':189 'resourc':53 'respons':204 'retriev':1,15 'return':33,62,173,218 'schema':187 'secur':36 'sensit':230 'servic':112 'settl':66 'signific':236 'social':35 'social security number lookup' 'sourc':160 'span':103 'spars':164 'specif':52 'ssn':3,17,38,134,233 'ssn-lookup' 'substant':181 'type':213 'unit':87 'usdc':72 'usdc-settlement' 'use':71 'util':111 'valid':220 'via':5,19 'wallet':177 'warrant':235 'x402':6,20,48,100 'x402 data API' 'x402-gated':99 'x402-payment'","prices":[{"id":"ff2e06f2-052c-44be-b752-181260756b06","listingId":"93530a69-4d16-4d62-9bc7-e83ebf7a66ee","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/100/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":"2026-04-21T18:32:13.188Z"}],"sources":[{"listingId":"93530a69-4d16-4d62-9bc7-e83ebf7a66ee","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/100/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.188Z","lastSeenAt":"2026-04-25T11:33:15.487Z"}],"details":{"listingId":"93530a69-4d16-4d62-9bc7-e83ebf7a66ee","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/100/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 a valid x402 402 challenge with USDC on Base network, maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/employees/100/ssn"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/100/ssn"},{"claim":"Provider advertises $0.02 per request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages return only a Connect wallet prompt with no substantive documentation","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN for payroll or HR integrations","Automated identity verification workflows requiring SSN data","Agent-driven lookups of employee personally identifiable information"],"bestFor":["Developers needing per-call SSN data without API key management","Automated agents that can settle x402 payments on Base","Low-volume, on-demand employee data retrieval"],"notFor":["Bulk employee data exports (no batch endpoint documented)","Users who need detailed documentation or response schema guarantees before integrating","Any use case where sourcing and legality of SSN data has not been independently verified"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.646Z"},"updatedAt":"2026-04-25T11:33:15.487Z"}}