{"id":"0225fa18-37ea-4133-9719-77da1367e46e","shortId":"5neDuZ","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 provides access to employee salary data via a simple POST request. The specific resource `/api/v1/employees/141/salary` returns salary information for employee ID 141 in JSON format. Payment is handled inline using the x402 protocol on the Base network, settling in USDC (contract 0x8335…2913) at a cost of $0.02 per request.\n\nThe endpoint is part of a broader API platform (lowpaymentfee.com) that offers dozens of pay-per-call endpoints across data analytics, AI/ML inference, finance, and utility categories — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payment is made by attaching an X-PAYMENT header with a signed x402 payment challenge; no traditional authentication or subscription is required.\n\nDocumentation is extremely sparse. The docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the salary endpoint returns. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response payload structure is unknown.","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 API","pay-per-request API","USDC micropayment API","lowpaymentfee"],"warnings":["No OpenAPI or JSON schema available for request or response bodies","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","The response payload structure is completely unknown — no sample or field descriptions exist","The endpoint path suggests employee PII (salary data); consumers should verify data provenance and compliance obligations","It is unclear whether employee IDs beyond 141 are valid or what the data source is"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/141/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/141/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the docs pages are empty. The purpose of the endpoint (employee salary data) is only inferable from the URL path. This is effectively a stub 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'0.02':85,119 '0x8335':79 '141':59 '2913':80 '402':205 'USDC micropayment API' 'access':39,133 'across':107 'actual':209 'advertis':124 'ai/ml':110 'analyt':109 'api':95,126,164 'attach':138 'authent':152 'base':10,25,73 'base-network' 'broader':94 'call':4,19,105 'categori':115 'challeng':149,206 'confirm':200 'connect':172 'content':178 'contract':78 'cost':83 'data':7,22,43,108 'descript':189 'doc':162 'document':157 'dozen':100 'employe':5,20,41,57 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,89,106,195,198 'exampl':186 'extrem':159 'field':192 'financ':112 'format':62 'handl':65 'header':143 'id':58 'infer':111 'inform':55 'inlin':66 'instant':132 'json':61 'json-response' 'key':127 'limit':130 'live':201 'lowpaymentfee' 'lowpaymentfee.com':37,97 'made':136 'network':74 'no-api-key' 'offer':99 'openapi':182 'page':167 'part':91 'pay':2,17,103 'pay-per-cal':1,16,102 'pay-per-call' 'pay-per-request API' 'payload':211 'payment':63,134,142,148 'payroll data endpoint' 'per':3,18,86,104,120 'platform':96,123 'post':47 'price':117,163 'prompt':174 'proper':204 'protocol':70 'provid':38 'rate':129 'readm':166 'render':169 'request':48,87,121 'request/response':185 'requir':156 'resourc':51 'respons':210 'return':53,196,202 'salari':6,21,42,54,194 'salary lookup' 'schema':183 'settl':13,28,75 'sign':146 'simpl':46 'spars':160 'specif':50 'structur':212 'subscript':154 'tradit':151 'unknown':214 'usdc':15,30,77 'usdc-settlement' 'use':67 'util':114 'via':11,26,44 'wallet':173 'x':141 'x-payment':140 'x402':12,27,33,69,147 'x402 API' 'x402-enabled':32 'x402-payment'","prices":[{"id":"2a3b210f-dffe-4e01-9252-3a11e41f611c","listingId":"0225fa18-37ea-4133-9719-77da1367e46e","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/141/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":"2026-04-21T18:32:14.154Z"}],"sources":[{"listingId":"0225fa18-37ea-4133-9719-77da1367e46e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/141/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.154Z","lastSeenAt":"2026-04-23T09:02:01.794Z"}],"details":{"listingId":"0225fa18-37ea-4133-9719-77da1367e46e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/141/salary \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 challenge, confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/employees/141/salary"},{"claim":"Payment is in USDC on Base network with maxAmountRequired of 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/141/salary"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages show only 'Connect wallet' with no documentation content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee by ID","Integrating pay-per-call salary data into HR or payroll workflows","Agent-driven lookups of compensation data without API key management"],"bestFor":["Agents or apps needing on-demand employee salary data with no subscription","Developers experimenting with x402 payment-gated APIs","Use cases where per-request billing is preferred over monthly plans"],"notFor":["Bulk salary data exports across many employees (no batch endpoint documented)","Users who need detailed API documentation or response schema guarantees before integrating","Non-crypto workflows that cannot attach x402 payment headers"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.365Z"},"updatedAt":"2026-04-23T09:02:01.794Z"}}