{"id":"406267e2-531c-4c29-b1fa-1b52ee088a04","shortId":"cMPqxU","kind":"x402","title":"Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.","tagline":"Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.","description":"This x402-enabled endpoint at lowpaymentfee.com returns salary information for a specific employee (ID 191) via a POST request. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request. The endpoint requires no API keys, no rate limits, and provides instant access — callers simply attach an x402 payment header to authenticate.\n\nThe hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request. This particular endpoint falls outside those listed categories and appears to serve employee salary data, though no detailed documentation, request schema, or response schema is available beyond the x402 challenge metadata. The output is JSON (mimeType: application/json) and the HTTP method is POST.\n\nBecause no OpenAPI spec, request body schema, or example responses were found in the crawl, the exact fields accepted or returned are unknown. The endpoint is confirmed live (402 challenge captured), but callers should expect to experiment with the request body or contact the provider for documentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-call","no-api-key","json-response"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 paywall API","USDC micropayment API","lowpaymentfee","pay-per-request data"],"warnings":["No request body schema or response schema documented anywhere","No OpenAPI or machine-readable spec available","The endpoint path suggests access to a specific employee's salary — unclear if this is demo/synthetic data or real PII","Documentation pages (/docs, /pricing, /api, /README) all returned only a 'Connect wallet' stub with no useful content","Purpose and data source of employee salary information is unexplained"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/191/salary","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/191/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 x402 challenge, but there is no OpenAPI spec, no request/response schema, no documentation beyond a generic landing page, and the endpoint's purpose (employee salary for ID 191) is narrow and unexplained. Pricing is clear ($0.02/request in USDC on Base) but everything else must be 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'191':46 '402':191 'USDC micropayment API' 'accept':181 'access':81 'ai/ml':108 'analyt':107 'api':73,104 'appear':129 'application/json':156 'attach':84 'authent':90 'avail':145 'base':10,25,56 'base-network' 'beyond':146 'bodi':168,203 'broad':97 'call':4,19,103 'caller':82,195 'captur':193 'catalog':98 'categori':127 'challeng':149,192 'coin':61 'confirm':189 'contact':205 'cost':64 'crawl':177 'data':7,22,106,134 'detail':137 'document':138,209 'employe':5,20,44,132 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,70,122,187 'exact':179 'exampl':171 'expect':197 'experi':199 'fall':123 'field':180 'finance/web3':110 'found':174 'header':88 'host':92 'http':159 'id':45 'infer':109 'inform':40 'infrastructur':112 'instant':80 'json':154 'json-response' 'key':74 'limit':77 'list':126 'live':190 'lowpaymentfee' 'lowpaymentfee.com':37,94 'metadata':150 'method':160 'mimetyp':155 'network':57 'no-api-key' 'offer':95 'openapi':165 'output':152 'outsid':124 'particular':121 'pay':2,17,101 'pay-per-cal':1,16,100 'pay-per-call' 'pay-per-request data' 'payment':51,87 'payroll data endpoint' 'per':3,18,67,102,118 'post':49,162 'price':115 'provid':79,207 'rate':76 'request':50,68,119,139,167,202 'requir':71 'respons':142,172 'return':38,183 'salari':6,21,39,133 'salary lookup' 'schema':140,143,169 'serv':131 'settl':13,28,53 'simpli':83 'site':93 'span':105 'spec':166 'specif':43 'though':135 'unknown':185 'usd':60 'usdc':15,30,59 'usdc-settlement' 'use':58 'util':113 'via':11,26,47 'x402':12,27,33,86,148 'x402 paywall API' 'x402-enabled':32 'x402-payment'","prices":[{"id":"db82b443-dfc4-4668-8fb0-9e74eddaea1f","listingId":"406267e2-531c-4c29-b1fa-1b52ee088a04","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/191/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:15.474Z"}],"sources":[{"listingId":"406267e2-531c-4c29-b1fa-1b52ee088a04","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/191/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.474Z","lastSeenAt":"2026-04-23T07:32:07.141Z"}],"details":{"listingId":"406267e2-531c-4c29-b1fa-1b52ee088a04","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/191/salary \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/191/salary"},{"claim":"Site advertises $0.02/request pricing, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/191/salary"}],"useCases":["Retrieving salary information for employee ID 191 on demand","Integrating pay-per-call salary data into HR or payroll workflows","Agent-driven lookups of compensation data without API key management"],"bestFor":["Agents that need on-demand salary data with no subscription","Developers experimenting with x402 payment-gated APIs","Workflows requiring USDC-settled, keyless API access on Base"],"notFor":["Bulk payroll data exports (single-employee endpoint, no batch support documented)","Users who need detailed API documentation or guaranteed SLAs","Non-crypto users without Base network USDC"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.497Z"},"updatedAt":"2026-04-23T07:32:07.141Z"}}