{"id":"68e520fb-0a24-4df4-b5da-3b2859a7089d","shortId":"wuZ4eg","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 102) 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 call with no API keys, no rate limits, and no commitments. This particular endpoint falls under what appears to be an employee data or HR-related resource. The response MIME type is application/json.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawl. The endpoint is live (returns a valid 402 challenge), but the actual data returned after payment is unknown. Given the sensitive nature of SSN data, users should exercise caution and verify the legitimacy and compliance of this endpoint before use.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data","ssn-lookup","per-request-micropayment","json-response"],"categories":["data","identity"],"synonyms":["employee SSN API","social security number lookup","employee data endpoint","x402 paid API","Base USDC micropayment API","HR data API"],"warnings":["Endpoint serves Social Security Number data — highly sensitive PII. Verify legal compliance (e.g., FCRA, state privacy laws) before use.","No documentation, request schema, or response schema available — actual data returned after payment is unknown.","Docs, API, pricing, and README pages all render only 'Connect wallet' with no substantive content.","Legitimacy of the data source is unverified; this could be synthetic/demo data.","No OpenAPI spec or ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/102/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/102/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 there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The endpoint deals with highly sensitive PII (SSN) with no visible compliance or legitimacy documentation. Effectively a stub 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'000':71 '102':45 '20':70 '402':189 '6':76 'Base USDC micropayment API' 'HR data API' 'accept':51 'actual':193 'advertis':66 'ai/ml':98 'analyt':97 'api':94,113,150 'appear':127 'application/json':143 'avail':178 'base':9,23,61,72 'behind':46 'broad':88 'call':110 'catalog':89 'caution':210 'challeng':65,190 'commit':120 'complianc':216 'connect':159 'content':165 'crawl':181 'crypto':101 'data':4,18,39,96,132,194,206 'decim':77 'doc':149 'document':144 'employe':2,16,34,43,131 'employee SSN API' 'employee data endpoint' 'employee-data' 'endpoint':30,123,183,219 'equal':79 'exampl':177 'exercis':209 'extrem':146 'fall':124 'financ':100 'gate':93 'given':200 'host':86 'hr':135 'hr-relat':134 'id':44 'infer':99 'json-response' 'key':114 'legitimaci':214 'limit':117 'live':185 'lowpaymentfee.com':32,85 'maxamountrequir':68 'micropay':7,21 'mime':140 'natur':203 'network':10,24,62 'number':37 'openapi':169 'page':154 'particular':122 'payment':56,197 'paywal':49 'per':13,27,81,109 'per-request-micropayment' 'post':52 'price':106,151 'prompt':161 'provid':84 'rate':116 'readm':153 'relat':136 'render':156 'request':14,28,53,82 'request/response':172 'resourc':137 'respons':139 'retriev':1,15 'return':33,186,195 'schema':173 'secur':36 'sensit':202 'servic':104 'settl':55 'social':35 'social security number lookup' 'span':95 'spars':147 'spec':170 'specif':42 'ssn':3,17,38,205 'ssn-lookup' 'substant':164 'type':141 'unit':73 'unknown':199 'usag':176 'usdc':58,75 'usdc-base-network' 'use':221 'user':207 'util':103 'valid':188 'verifi':212 'via':5,19 'wallet':160 'x402':6,20,48,64,92 'x402 paid API' 'x402-gated':91 'x402-payment'","prices":[{"id":"79d4a962-1e2e-4c6a-8090-a1b7bc5bcaad","listingId":"68e520fb-0a24-4df4-b5da-3b2859a7089d","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/102/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":"2026-04-21T18:32:13.240Z"}],"sources":[{"listingId":"68e520fb-0a24-4df4-b5da-3b2859a7089d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/102/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.240Z","lastSeenAt":"2026-04-25T11:33:15.577Z"}],"details":{"listingId":"68e520fb-0a24-4df4-b5da-3b2859a7089d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/102/ssn \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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/102/ssn"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/102/ssn"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN data for payroll or HR integrations","Programmatic identity verification workflows requiring SSN","Agent-driven data retrieval with per-call crypto micropayments"],"bestFor":["Developers needing pay-per-call access to employee records without API key management","Agents that can settle x402 payments in USDC on Base","Low-volume, on-demand lookups where subscription pricing is unnecessary"],"notFor":["Bulk SSN retrieval or batch processing (no documented batch endpoint)","Users who cannot settle USDC payments on Base network","Applications requiring documented compliance certifications for handling PII"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.542Z"},"updatedAt":"2026-04-25T11:33:15.577Z"}}