{"id":"09b2f3e4-2223-4f74-bb07-eea70d8b4c4e","shortId":"3s6fCL","kind":"x402","title":"Pay-per-call employee salary lookup API on Base via x402, settled in USDC.","tagline":"Pay-per-call employee salary lookup API on Base via x402, settled in USDC.","description":"This endpoint at lowpaymentfee.com provides access to employee salary data via a simple POST request. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated by the x402 payment protocol on the Base network.\n\nThe specific endpoint `/api/v1/employees/101/salary` returns salary information for employee ID 101. Payment is settled in USDC (contract 0x8335…2913 on Base) using the x402 \"exact\" scheme. The maximum amount required per call is 20,000 base units of USDC, which at 6 decimals equals $0.02 per request. The platform advertises no API keys, no rate limits, and instant access — you simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nDocumentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available from the crawl. The endpoint is confirmed live (returns 402 with a well-formed x402 challenge), but the actual response format for a successful paid request is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-lookup","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 API","micropayment API","Base USDC API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","The nature and source of the employee salary data is undocumented — unclear if this is sample/demo data or a real service","No information on data accuracy, freshness, or legal compliance for salary data"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/101/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/101/salary","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 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no examples. The actual data returned on successful payment is entirely unknown, making this effectively a stub 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'/api/v1/employees/101/salary':85 '/docs':169 '/pricing':170 '/readme':173 '0.02':126 '000':116 '0x8335':99 '101':92 '20':115 '2913':100 '402':209 '6':123 'Base USDC API' 'access':36,140 'actual':219 'advertis':131 'ai/ml':64 'amount':110 'analyt':63 'api':8,23,60,133 'attach':143 'avail':163,199 'base':10,25,80,102,117 'base-network' 'broader':51 'call':4,19,59,113 'challeng':216 'confirm':206 'connect':179 'contract':98 'crawl':202 'crypto':67 'data':40,62 'decim':124 'detail':186 'document':155 'dozen':54 'employe':5,20,38,90 'employee salary API' 'employee-salary-lookup' 'endpoint':32,84,164,204 'equal':125 'exact':106 'exampl':197 'extrem':157 'financ':66 'form':214 'format':221 'gate':72 'header':148 'id':91 'infer':65 'inform':88 'instant':139 'key':134 'land':160 'limit':137 'list':162 'live':207 'lookup':7,22 'lowpaymentfee' 'lowpaymentfee.com':34 'maximum':109 'micropayment API' 'network':81 'no-api-key' 'offer':53 'openapi':190 'page':161,174 'paid':225 'part':48 'pay':2,17,57 'pay-per-cal':1,16,56 'pay-per-call' 'payload':198 'payment':76,93,147,153 'payroll data endpoint' 'per':3,18,58,112,127 'platform':52,130 'post':44 'price':166 'prompt':181 'proof':154 'protocol':77 'provid':35 'rate':136 'render':176 'request':45,128,226 'request/response':193 'requir':111 'respons':220 'return':86,208 'salari':6,21,39,87 'salary lookup' 'schema':194 'scheme':107 'servic':70 'settl':13,28,95 'simpl':43 'simpli':142 'span':61 'spars':158 'spec':191 'specif':83 'success':224 'technic':185 'unit':118 'unknown':228 'usdc':15,30,97,120 'usdc-settlement' 'use':103 'util':69 'valid':151 'via':11,26,41 'wallet':180 'well':213 'well-form':212 'x':146 'x-payment':145 'x402':12,27,75,105,152,215 'x402 API' 'x402-payment'","prices":[{"id":"4c86723e-6dd4-4c7e-a580-ed80e9c0ebc3","listingId":"09b2f3e4-2223-4f74-bb07-eea70d8b4c4e","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/101/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":"2026-04-21T18:32:13.107Z"}],"sources":[{"listingId":"09b2f3e4-2223-4f74-bb07-eea70d8b4c4e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/101/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.107Z","lastSeenAt":"2026-04-23T10:31:43.962Z"}],"details":{"listingId":"09b2f3e4-2223-4f74-bb07-eea70d8b4c4e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/101/salary \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/101/salary"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/101/salary"}],"useCases":["Retrieving salary data for a specific employee by ID","Integrating pay-per-call payroll lookups into agent workflows","Demonstrating x402 payment protocol usage on Base"],"bestFor":["Agents needing on-demand employee salary data without API key management","Developers experimenting with x402 micropayment-gated APIs","Low-volume, pay-as-you-go data retrieval at $0.02 per call"],"notFor":["Bulk payroll data exports or batch processing (no documented batch endpoint)","Users who need detailed API documentation or guaranteed SLAs","Production HR systems requiring authenticated, auditable data sources"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.755Z"},"updatedAt":"2026-04-23T10:31:43.962Z"}}