{"id":"e44f6fcc-f75b-4d1d-9ace-0b39a9446503","shortId":"p6v6mM","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 employee salary data for a specific employee (ID 55) 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 X-PAYMENT header with a valid x402 payment proof.\n\nThe hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and x402 payment flow on Base.\n\nDocumentation is extremely sparse — 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. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data format and request body requirements are unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-call","no-api-key","post-endpoint"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 API","micropayment API","USDC pay-per-call","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content","The endpoint path references a hardcoded employee ID (55); it is unclear whether other IDs are supported or what data is returned","No SLA, support, or terms of service information available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/55/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/55/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 via a valid 402 challenge, but there is no OpenAPI spec, no request/response schema, no example payloads, and documentation pages are empty. The actual data returned and required request body are entirely unknown, making this effectively a stub 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'0.02':67,143 '402':197 '55':47 'USDC pay-per-call' 'access':82 'actual':201 'ai/ml':114 'analysi':117 'analyt':113 'api':74,110,160 'attach':85 'avail':188 'base':10,25,57,152 'base-network' 'bodi':206 'broad':103 'call':4,19,109 'caller':83 'catalog':104 'challeng':198 'classif':119 'coin':62 'confirm':192 'connect':168 'convers':136 'cost':65 'data':7,22,41,112,202 'detail':175 'doc':158 'document':153 'embed':120 'employe':5,20,39,45 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,71,139,190 'estim':130 'exampl':186 'exchang':125 'extrem':155 'feed':124 'financ':121 'flow':150 'format':203 'gas':129 'generat':137 'geocod':134 'header':90 'host':98 'id':46 'infer':115 'infrastructur':132 'instant':81 'key':75 'limit':78 'live':193 'lowpaymentfee' 'lowpaymentfee.com':37,100 'micropayment API' 'model':146 'network':58 'no-api-key' 'offer':101 'openapi':179 'page':163 'pay':2,17,107 'pay-per-cal':1,16,106 'pay-per-call' 'payload':187 'payment':52,89,95,149 'payroll data endpoint' 'per':3,18,68,108 'post':50 'post-endpoint' 'price':123,145,159 'prompt':170 'proof':96 'proper':196 'provid':80 'quot':128 'rate':77,126 'readm':162 'render':165 'request':51,69,205 'request/response':182 'requir':72,207 'return':38,194 'salari':6,21,40 'salary lookup' 'schema':183 'sentiment':116 'settl':13,28,54 'share':140 'simpli':84 'site':99 'span':111 'spars':156 'spec':180 'specif':44 'summar':118 'technic':174 'token':127 'unknown':209 'usd':61 'usdc':15,30,60 'usdc-settlement' 'use':59 'util':133 'valid':93,135 'via':11,26,48 'wallet':169 'web3':122 'x':88 'x-payment':87 'x402':12,27,33,94,148 'x402 API' 'x402-enabled':32 'x402-payment'","prices":[{"id":"a27d1b19-9b35-48fb-b884-807ae69b34e9","listingId":"e44f6fcc-f75b-4d1d-9ace-0b39a9446503","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/55/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":"2026-04-21T18:32:16.766Z"}],"sources":[{"listingId":"e44f6fcc-f75b-4d1d-9ace-0b39a9446503","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/55/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.766Z","lastSeenAt":"2026-04-23T06:05:08.254Z"}],"details":{"listingId":"e44f6fcc-f75b-4d1d-9ace-0b39a9446503","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/55/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":"Endpoint returns a valid x402 402 challenge with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/55/salary"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/55/salary"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/55/salary"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only 'Connect wallet' with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee on demand","Integrating pay-per-call payroll data into agent workflows","Demonstrating x402 payment protocol integration with USDC on Base"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee salary data without API key management","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk payroll data exports requiring thousands of records at once","Users who need detailed API documentation and request/response schemas before integrating","Production systems requiring SLA guarantees or support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.703Z"},"updatedAt":"2026-04-23T06:05:08.254Z"}}