{"id":"fdbcf947-9b17-4709-9407-8631737f7159","shortId":"mmhZxM","kind":"x402","title":"Pay-per-call employee salary data endpoint on Base via x402 (USDC).","tagline":"Pay-per-call employee salary data endpoint on Base via x402 (USDC).","description":"This x402-enabled endpoint at lowpaymentfee.com returns employee salary information for a specific employee (ID 49) 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 uses the x402 \"exact\" payment scheme, meaning each call requires a one-time micropayment before the server returns data.\n\nThe hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, the specific endpoint being listed here (`/api/v1/employees/49/salary`) is not prominently advertised on the site's landing page, and no documentation, request schema, or response schema is published for it. The response MIME type is `application/json`, but the exact fields returned are unknown.\n\nBecause no OpenAPI spec, request body schema, or example responses are available, agents calling this endpoint will need to discover the expected input format through experimentation. The 402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges with a 300-second timeout.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","employee-salary-data","pay-per-call","json-response"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","HR data API","employee compensation API","x402 salary","micropayment data API"],"warnings":["No request body schema or documentation available for this endpoint","No response schema or example response published","The /api/v1/employees/49/salary path is not listed among the site's advertised APIs — may be a demo or test endpoint","Docs, API, pricing, and README pages all returned only 'Connect wallet' with no useful content","Unknown whether employee ID 49 is a real record or placeholder"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/49/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/49/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and the specific employee salary endpoint is not listed on the site's landing page. Effectively a stub with confirmed 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'0.02':63,115 '300':214 '402':198 '49':43 'HR data API' 'accept':209 'advertis':139 'agent':183 'ai/ml':105 'analyt':104 'api':101,120 'application/json':163 'avail':182 'base':10,23,53 'base-network' 'bodi':176 'broad':94 'call':4,17,76,100,184 'captur':202 'catalog':95 'challeng':199,211 'coin':58 'commit':127 'confirm':203 'cost':61 'crypto':108 'data':7,20,87,103 'discov':190 'document':148 'employe':5,18,35,41 'employee compensation API' 'employee salary API' 'employee-salary-data' 'enabl':30 'endpoint':8,21,31,67,131,186,205 'exact':71,166 'exampl':179 'expect':192 'experiment':196 'field':167 'financ':107 'format':194 'host':89 'howev':128 'id':42 'infer':106 'inform':37 'input':193 'json-response' 'key':121 'land':144 'limit':124 'list':133 'live':207 'lowpaymentfee.com':33,91 'mean':74 'micropay':82 'micropayment data API' 'mime':160 'need':188 'network':54 'offer':92 'one':80 'one-tim':79 'openapi':173 'page':145 'pay':2,15,98 'pay-per-cal':1,14,97 'pay-per-call' 'payment':48,72,210 'payroll data endpoint' 'per':3,16,64,99,116 'post':46 'price':113 'promin':138 'publish':155 'rate':123 'request':47,65,117,149,175 'requir':77 'respons':152,159,180 'return':34,86,168 'salari':6,19,36 'salary lookup' 'schema':150,153,177 'scheme':73 'second':215 'server':85 'servic':111 'settl':50 'site':90,142 'span':102 'spec':174 'specif':40,130 'success':201 'time':81 'timeout':216 'type':161 'unknown':170 'usd':57 'usdc':13,26,56 'usdc-micropayment' 'use':55,68 'util':110 'via':11,24,44 'x402':12,25,29,70 'x402 salary' 'x402-enabled':28 'x402-payment'","prices":[{"id":"759ad555-eaa5-424a-a7e4-5d84bfbcfd7f","listingId":"fdbcf947-9b17-4709-9407-8631737f7159","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/49/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":"2026-04-21T18:32:17.019Z"}],"sources":[{"listingId":"fdbcf947-9b17-4709-9407-8631737f7159","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/49/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.019Z","lastSeenAt":"2026-04-23T04:32:04.224Z"}],"details":{"listingId":"fdbcf947-9b17-4709-9407-8631737f7159","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/49/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 x402Version 1, exact scheme, on the Base network using USDC at maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/49/salary"},{"claim":"The site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/49/salary"}],"useCases":["Retrieving salary information for a specific employee record","Integrating pay-per-call payroll data into agent workflows","Demonstrating x402 micropayment protocol usage on Base"],"bestFor":["Agents needing on-demand employee salary data without API key management","Developers experimenting with x402 payment protocol on Base","Micropayment-gated data access without subscriptions"],"notFor":["Bulk payroll data exports across many employees","Production HR systems requiring authenticated, audited access","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.305Z"},"updatedAt":"2026-04-23T04:32:04.224Z"}}