{"id":"5f2c982d-406f-4ddd-9e2a-7ea249b650db","shortId":"GRHFCr","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 169) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum amount of 20,000 base units, which equals $0.02 USD (USDC uses 6 decimals). No API keys or rate limits are required — access is gated purely by the x402 payment protocol.\n\nThe provider site (lowpaymentfee.com) hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, and utility endpoints, all priced at $0.02 per request. Documentation pages exist but appear to be stubs (returning only a \"Connect wallet\" prompt with no further content). There is no OpenAPI schema, no request/response examples, and no detailed documentation for this specific endpoint. The endpoint path suggests it returns personally identifiable information (an SSN), which raises significant regulatory and ethical concerns.\n\nThe x402 challenge was successfully captured (HTTP 402 with valid accepts block), confirming the endpoint is live. However, the lack of any documentation, input schema, or sample responses means the actual behavior and data source behind this endpoint are unknown. Callers should exercise extreme caution given the sensitive nature of SSN data.","tags":[],"capabilities":["x402-payment","usdc-base-network","employee-data","ssn-lookup","json-response","no-api-key","per-request-billing"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","employee data API","SSN retrieval","x402 data access"],"warnings":["Endpoint appears to serve personally identifiable information (Social Security Numbers) — significant regulatory risk (FCRA, state privacy laws, GDPR if applicable).","No documentation, input schema, or response examples are available; all doc pages return only a wallet-connect stub.","Data provenance is unknown — it is unclear whether this returns real, synthetic, or placeholder SSN data.","Endpoint is scoped to a single hardcoded employee ID (169); unclear if other IDs are supported via different URLs.","No OpenAPI spec or ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/169/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/169/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation, no request/response schema, no examples, and the endpoint exposes what appears to be highly sensitive PII (SSN) with no compliance or data-source information. All doc pages are 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'000':77 '0x8335':69 '169':46 '20':76 '2913':70 '402':192 '6':86 'PII endpoint' 'SSN retrieval' 'accept':53,195 'access':96 'actual':215 'ai/ml':121 'amount':74 'analyt':120 'api':89,117 'appear':137 'base':9,23,64,78 'behavior':216 'behind':47,220 'block':196 'broad':111 'caller':225 'captur':190 'catalog':112 'caution':229 'challeng':187 'concern':184 'confirm':197 'connect':144 'content':150 'contract':68 'data':4,18,39,119,218,236 'decim':87 'detail':161 'document':133,162,207 'employe':2,16,34,43 'employee SSN lookup' 'employee data API' 'employee-data' 'endpoint':30,52,126,166,168,199,222 'equal':81 'ethic':183 'exampl':158 'exercis':227 'exist':135 'extrem':228 'financ':123 'gate':98,116 'given':230 'host':109 'howev':202 'http':191 'id':45 'identifi':174 'infer':122 'inform':175 'input':208 'json':58 'json-response' 'key':90 'lack':204 'limit':93 'live':201 'lowpaymentfee.com':32,108 'maximum':73 'mean':213 'micropay':7,21 'natur':233 'network':10,24,65 'no-api-key' 'number':37 'openapi':154 'page':134 'path':169 'payment':59,103 'paywal':50 'per':13,27,131 'per-request-billing' 'person':173 'post':54 'price':128 'prompt':146 'protocol':104 'provid':106 'pure':99 'rais':179 'rate':92 'record':44 'regulatori':181 'request':14,28,55,132 'request/response':157 'requir':95 'respons':212 'retriev':1,15 'return':33,57,141,172 'sampl':211 'schema':155,209 'secur':36 'sensit':232 'settl':61 'signific':180 'site':107 'social':35 'social security number API' 'sourc':219 'span':118 'specif':42,165 'ssn':3,17,38,177,235 'ssn-lookup' 'stub':140 'success':189 'suggest':170 'unit':79 'unknown':224 'usd':83 'usdc':67,84 'usdc-base-network' 'use':66,85 'util':125 'valid':194 'via':5,19 'wallet':145 'x402':6,20,49,102,115,186 'x402 data access' 'x402-gated':114 'x402-payment'","prices":[{"id":"24663a7e-6e1a-49ca-9919-7b1ae0ee4034","listingId":"5f2c982d-406f-4ddd-9e2a-7ea249b650db","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/169/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":"2026-04-21T18:32:15.246Z"}],"sources":[{"listingId":"5f2c982d-406f-4ddd-9e2a-7ea249b650db","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/169/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.246Z","lastSeenAt":"2026-04-24T21:04:37.652Z"}],"details":{"listingId":"5f2c982d-406f-4ddd-9e2a-7ea249b650db","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/169/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 402 with USDC on Base, maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/169/ssn"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/169/ssn"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages return only a Connect wallet stub with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving SSN data for employee ID 169 via programmatic payment","Demonstrating x402 protocol micropayment flows","Accessing sensitive employee records without traditional API key authentication"],"bestFor":["Developers exploring x402 payment protocol mechanics","Agents needing pay-per-call access without signup"],"notFor":["Production PII handling without compliance review","Bulk employee data retrieval (endpoint is scoped to a single employee ID)","Use cases requiring documented request/response schemas"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.818Z"},"updatedAt":"2026-04-24T21:04:37.652Z"}}