{"id":"c557ddc8-9b7f-462c-9657-9feb5f6462b5","shortId":"xtdskW","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 118) 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 include 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, API, pricing, 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 or what input it expects beyond the POST method. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data contract is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","x402 salary lookup","USDC pay-per-call API","lowpaymentfee API","Base network API","employee compensation data"],"warnings":["No OpenAPI or request/response schema available — data contract is entirely unknown","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The endpoint targets a hardcoded employee ID (118); it is unclear if other IDs are supported or how to discover them","No information on data source, accuracy, or freshness of salary data"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/118/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/118/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 there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages are empty. The purpose of the specific employee salary endpoint is only inferable from the URL path. Effectively a stub 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'0.02':67,143 '118':47 '402':210 'Base network API' 'USDC pay-per-call API' 'access':82 'actual':214 'ai/ml':114 'analysi':117 'analyt':113 'api':74,110,159 'base':10,25,57,152 'base-network' 'beyond':198 'broad':103 'call':4,19,109 'caller':83 'catalog':104 'challeng':211 'classif':119 'coin':62 'confirm':205 'connect':168 'content':174 'contract':216 'convers':136 'cost':65 'data':7,22,41,112,215 'descript':185 'doc':158 'document':153 'embed':120 'employe':5,20,39,45 'employee compensation data' 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,71,139,191,203 'estim':130 'exampl':182 'exchang':125 'expect':197 'extrem':155 'feed':124 'field':188 'financ':121 'flow':150 'gas':129 'generat':137 'geocod':134 'header':90 'host':98 'id':46 'includ':85 'infer':115 'infrastructur':132 'input':195 'instant':81 'key':75 'limit':78 'live':206 'lowpaymentfee API' 'lowpaymentfee.com':37,100 'method':201 'model':146 'network':58 'no-api-key' 'offer':101 'openapi':178 'page':163 'pay':2,17,107 'pay-per-cal':1,16,106 'pay-per-call' 'payment':52,89,95,149 'payroll data endpoint' 'per':3,18,68,108 'post':50,200 'price':123,145,160 'prompt':170 'proof':96 'proper':209 'provid':80 'quot':128 'rate':77,126 'readm':162 'render':165 'request':51,69 'request/response':181 'requir':72 'return':38,192,207 'salari':6,21,40,190 'schema':179 'sentiment':116 'settl':13,28,54 'share':140 'simpli':84 'site':99 'span':111 'spars':156 'specif':44 'summar':118 'token':127 'unknown':218 '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 salary lookup' 'x402-enabled':32 'x402-payment'","prices":[{"id":"40fb500b-ffc9-4923-922a-2424a7287dd1","listingId":"c557ddc8-9b7f-462c-9657-9feb5f6462b5","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/118/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":"2026-04-21T18:32:13.726Z"}],"sources":[{"listingId":"c557ddc8-9b7f-462c-9657-9feb5f6462b5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/118/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.726Z","lastSeenAt":"2026-04-23T10:31:44.620Z"}],"details":{"listingId":"c557ddc8-9b7f-462c-9657-9feb5f6462b5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/118/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 HTTP 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/118/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":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/118/salary"}],"useCases":["Retrieving salary information for employee records","Integrating pay-per-call salary data into HR or payroll workflows","Agent-driven lookups of employee compensation without API key management"],"bestFor":["Developers wanting zero-signup, pay-per-call access to salary data","AI agents that can settle x402 payments on Base in USDC","Prototyping x402 payment flows with a low-cost endpoint"],"notFor":["Production HR systems requiring documented schemas and SLAs","Bulk salary data exports or batch processing","Users who cannot transact USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.968Z"},"updatedAt":"2026-04-23T10:31:44.620Z"}}