{"id":"0b3c7e12-760f-4bae-adaf-96486be28747","shortId":"PmpkDU","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 133) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on the Base network using the x402 \"exact\" scheme.\n\nThe x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. This is consistent with the provider's site-wide pricing of $0.02 per request. The provider claims no API keys, no rate limits, and instant access — payment is the only authentication mechanism. The payment timeout is 300 seconds.\n\nThe provider (lowpaymentfee.com) hosts a broad catalog of x402-gated endpoints spanning data analytics, AI/ML inference, finance, and utility services, all at the same $0.02 price point. Documentation pages beyond the landing page returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The nature of the data returned (employee SSN) raises significant regulatory and privacy concerns — SSNs are highly sensitive PII governed by laws such as the Privacy Act, GLBA, and various state data-breach statutes.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","ssn-lookup","json-response","micropayment"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","x402 employee data","paid SSN endpoint","Base USDC micropayment API"],"warnings":["Endpoint returns employee SSN — highly sensitive PII subject to strict regulatory requirements (Privacy Act, GLBA, state breach notification laws). Verify legal compliance before use.","No request or response schema documentation available; all doc pages return only 'Connect wallet'.","No OpenAPI spec or examples provided by the provider.","The employee ID (133) is hardcoded in the endpoint path; it is unclear whether other employee IDs are supported or how to discover them.","Provider site offers a wide catalog of endpoints at uniform $0.02 pricing with no substantive documentation — exercise caution regarding data authenticity."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/133/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/133/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is zero documentation on request body format, response schema, or what data is actually returned. The docs, pricing, and API pages all render only a wallet-connect prompt. The endpoint deals with highly sensitive PII (SSNs) with no visible compliance or privacy 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'000':81 '0x8335':86 '133':46 '20':80 '2913':87 '300':135 '6':96 'Base USDC micropayment API' 'accept':53 'access':124 'act':221 'advertis':76 'ai/ml':152 'analyt':151 'api':117 'authent':129 'avail':194 'base':9,23,66,82,89 'behind':47 'beyond':167 'breach':228 'broad':142 'catalog':143 'challeng':75 'claim':115 'concern':208 'connect':174 'consist':100 'content':180 'data':4,18,39,150,199,227 'data-breach':226 'decim':97 'document':165,189 'employe':2,16,34,43,201 'employee SSN lookup' 'employee-data' 'endpoint':30,52,148 'equal':91 'exact':71 'exampl':192 'financ':154 'gate':147 'given':93 'glba':222 'govern':214 'high':211 'host':140 'id':45 'infer':153 'instant':123 'json':58 'json-response' 'key':118 'land':169 'law':216 'limit':121 'lowpaymentfee.com':32,139 'maxamountrequir':78 'mechan':130 'micropay':7,21 'micropayment' 'natur':196 'network':10,24,67 'number':37 'openapi':184 'page':166,170 'paid SSN endpoint' 'payload':193 'payment':59,125,132 'paywal':50 'per':13,27,111 'pii':213 'point':164 'post':54 'price':108,163 'privaci':207,220 'prompt':176 'provid':103,114,138 'rais':203 'rate':120 'record':44 'regulatori':205 'request':14,28,55,112 'request/response':187 'retriev':1,15 'return':33,57,171,200 'schema':188 'scheme':72 'second':136 'secur':36 'sensit':212 'servic':157 'settl':61 'signific':204 'site':106 'site-wid':105 'social':35 'social security number API' 'span':149 'spec':185 'specif':42 'ssn':3,17,38,202 'ssn-lookup' 'ssns':209 'state':225 'statut':229 'substant':179 'timeout':133 'unit':83 'usdc':63,85,94 'usdc-base' 'use':68 'util':156 'various':224 'via':5,19 'wallet':175 'wide':107 'x402':6,20,49,70,74,146 'x402 employee data' 'x402-gated':145 'x402-payment'","prices":[{"id":"2e1c957c-3734-4aac-aab4-617d51954797","listingId":"0b3c7e12-760f-4bae-adaf-96486be28747","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/133/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":"2026-04-21T18:32:14.154Z"}],"sources":[{"listingId":"0b3c7e12-760f-4bae-adaf-96486be28747","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/133/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.154Z","lastSeenAt":"2026-04-25T05:33:47.161Z"}],"details":{"listingId":"0b3c7e12-760f-4bae-adaf-96486be28747","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/133/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":"x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/133/ssn"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/133/ssn"},{"claim":"Provider advertises $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages return only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee SSN for payroll or HR integrations","Programmatic identity verification workflows","Agent-driven data retrieval behind micropayment walls"],"bestFor":["Developers needing pay-per-call access to employee PII without API key management","x402-compatible agents on the Base network","Micropayment-gated data access demos"],"notFor":["Production systems requiring documented request/response schemas","Use cases where handling SSNs would violate regulatory requirements","Bulk data retrieval (no documented batch endpoint)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.282Z"},"updatedAt":"2026-04-25T05:33:47.161Z"}}