{"id":"17cefc5e-9852-4b6c-b5a4-b410754151e3","shortId":"7ZevDL","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 POST request to `/api/v1/employees/122/salary`. 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 endpoint returns a 402 challenge requiring payment in USDC (contract `0x8335...2913` on Base) with a maximum amount of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 `exact` scheme with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through per-call micropayment.\n\nDocumentation is extremely sparse. The landing page lists available endpoints and pricing, but the `/docs`, `/api`, `/pricing`, and `/README` routes all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads. The specific endpoint probed (`/employees/122/salary`) is not listed on the homepage among the advertised APIs, which raises questions about whether it is a demo/test route or a production resource. The response MIME type is declared as `application/json`.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","per-call-micropayment","json-response"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 micropayment API","pay-per-call data","Base USDC API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The /employees/122/salary path is not listed among the provider's advertised APIs on the homepage","All documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompt with no content","Request and response body schemas are completely unknown","Data source and accuracy of employee salary information is unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/122/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/122/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 402 challenge, but documentation is essentially nonexistent — no OpenAPI spec, no request/response schemas, no examples. The specific employee salary endpoint is not listed among the provider's advertised APIs, making its purpose and data source unclear. Score reflects a working payment gate with minimal supporting 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'/api/v1/employees/122/salary':46 '/docs':160 '/employees/122/salary':195 '/pricing':162 '/readme':164 '0.02':109 '000':104 '0x8335':94 '20':103 '2913':95 '300':126 '402':87 '6':114 'Base USDC API' 'access':36,137 'advertis':136,204 'ai/ml':65 'among':202 'amount':101 'analyt':64 'api':8,23,61,130,205 'application/json':227 'avail':154 'base':10,25,81,97,105 'base-network' 'broader':52 'call':4,19,60,144 'challeng':88 'connect':170 'contract':93 'crypto':68 'data':40,63 'decim':115 'declar':225 'demo/test':214 'detail':177 'document':146,186 'dozen':55 'employe':5,20,38 'employee salary API' 'employee-salary-data' 'endpoint':32,84,155,193 'equal':108 'exact':122 'exampl':189 'extrem':148 'financ':67 'gate':73 'grant':139 'homepag':201 'infer':66 'json-response' 'key':131 'land':151 'limit':134 'list':153,198 'lookup':7,22 'lowpaymentfee' 'lowpaymentfee.com':34 'made':118 'maximum':100 'micropay':145 'mime':222 'network':82 'offer':54 'openapi':181 'page':152 'part':49 'pay':2,17,58 'pay-per-cal':1,16,57 'pay-per-call data' 'payload':190 'payment':77,90,116 'payroll data endpoint' 'per':3,18,59,110,143 'per-cal':142 'per-call-micropayment' 'platform':53 'post':43 'price':157 'probe':194 'product':218 'prompt':172 'protocol':78 'provid':35 'pure':140 'question':208 'rais':207 'rate':133 'render':167 'request':44,111 'request/response':184 'requir':89 'resourc':219 'respons':221 'return':85 'rout':165,215 'salari':6,21,39 'salary lookup' 'schema':185 'scheme':123 'second':127 'servic':71 'settl':13,28 'span':62 'spars':149 'spec':182 'specif':192 'technic':176 'timeout':128 'type':223 'unit':106 'usdc':15,30,92,112 'usdc-settlement' 'use':113 'util':70 'via':11,26,41,119 'wallet':171 'whether':210 'x402':12,27,76,121 'x402 micropayment API' 'x402-payment'","prices":[{"id":"2fbc5f26-f8f6-4b23-938c-e34de749eb52","listingId":"17cefc5e-9852-4b6c-b5a4-b410754151e3","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/122/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":"2026-04-21T18:32:13.829Z"}],"sources":[{"listingId":"17cefc5e-9852-4b6c-b5a4-b410754151e3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/122/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.829Z","lastSeenAt":"2026-04-23T10:01:45.703Z"}],"details":{"listingId":"17cefc5e-9852-4b6c-b5a4-b410754151e3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/122/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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/122/salary"},{"claim":"The platform advertises $0.02 per request pricing 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/122/salary"}],"useCases":["Retrieving employee salary information on a per-request payment basis","Integrating pay-per-call salary data into HR or payroll workflows","Agent-driven data retrieval without API key management"],"bestFor":["Developers wanting zero-signup, pay-per-call access to data endpoints","AI agents that can settle x402 micropayments on Base","Prototyping x402 payment flows with low-cost endpoints"],"notFor":["Bulk payroll data exports requiring thousands of records at once","Users who need detailed API documentation or SDKs before integrating","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.837Z"},"updatedAt":"2026-04-23T10:01:45.703Z"}}