{"id":"34ba4c13-c1be-4474-98e0-95a381b455ef","shortId":"L3DBRe","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 180) via a POST request. It is part of a broader platform offering dozens of pay-per-call API endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories, all settled on the Base network using USDC.\n\nThe endpoint charges a maximum of $0.02 per request (20,000 base units of USDC with 6 decimals). Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed payment proof, and the server verifies it before returning the response. No API keys, subscriptions, or rate limits are advertised — access is purely pay-per-use.\n\nThe specific endpoint `/api/v1/employees/180/salary` is not listed on the provider's landing page among the advertised API categories (analytics, AI, finance, infrastructure), so its exact response schema and data source are unknown. The probe confirms it is live and returns a valid x402 challenge with version 1, accepting the \"exact\" payment scheme on Base mainnet. The payTo address is `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` and the accepted asset is USDC (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). Documentation pages beyond the landing page returned only a \"Connect wallet\" prompt with no additional technical detail.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-request","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","x402 salary lookup","pay-per-call salary","USDC micropayment API","lowpaymentfee API","Base network data API"],"warnings":["The endpoint /api/v1/employees/180/salary is not listed among the provider's advertised APIs — its data source and accuracy are unverifiable.","All documentation pages (docs, api, pricing, README) returned only a 'Connect wallet' prompt with no technical content.","No request body schema or response schema is available; callers must discover the format experimentally.","The employee salary data context raises potential privacy/compliance concerns depending on jurisdiction."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/180/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/180/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 and returns a valid x402 challenge, but there is no OpenAPI schema, no documented request/response format, and the specific employee salary endpoint is not listed among the provider's advertised APIs. Documentation pages are empty beyond a wallet-connect prompt. The actual data returned is 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'0.02':85 '000':89 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':200 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':207 '1':187 '180':43 '20':88 '6':95 'Base network data API' 'USDC micropayment API' 'accept':188,203 'access':134 'across':64 'addit':222 'address':198 'advertis':133,156 'ai':160 'ai/ml':66 'among':154 'analyt':159 'api':62,126,157 'asset':204 'base':10,23,75,90,194 'base-network' 'beyond':210 'broader':53 'call':4,17,61 'caller':104 'categori':70,158 'challeng':184 'charg':81 'confirm':175 'connect':217 'data':7,20,169 'data/analytics':65 'decim':96 'detail':224 'document':208 'dozen':56 'employe':5,18,35,41 'employee salary API' 'employee-salary-data' 'enabl':30 'endpoint':8,21,31,63,80,143 'exact':165,190 'financ':161 'finance/web3':67 'handl':99 'header':110 'id':42 'includ':105 'inform':37 'infrastructur':69,162 'key':127 'land':152,212 'limit':131 'list':147 'live':178 'lowpaymentfee API' 'lowpaymentfee.com':33 'mainnet':195 'maximum':83 'network':76 'no-api-key' 'offer':55 'page':153,209,213 'part':50 'pay':2,15,59,138 'pay-per-cal':1,14,58 'pay-per-call salary' 'pay-per-request' 'pay-per-us':137 'payment':97,109,114,191 'payroll data endpoint' 'payto':197 'per':3,16,60,86,139 'platform':54 'post':46 'probe':174 'prompt':219 'proof':115 'protocol':103 'provid':150 'pure':136 'rate':130 'request':47,87 'respons':124,166 'return':34,122,180,214 'salari':6,19,36 'schema':167 'scheme':192 'server':118 'settl':72 'sign':113 'sourc':170 'specif':40,142 'subscript':128 'technic':223 'unit':91 'unknown':172 'usdc':13,26,78,93,206 'usdc-settlement' 'use':77,140 'valid':182 'verifi':119 'version':186 'via':11,24,44,100 'wallet':218 'x':108 'x-payment':107 'x402':12,25,29,102,183 'x402 salary lookup' 'x402-enabled':28 'x402-payment'","prices":[{"id":"a9132361-f7da-490d-a804-7c50583425c9","listingId":"34ba4c13-c1be-4474-98e0-95a381b455ef","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/180/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":"2026-04-21T18:32:15.491Z"}],"sources":[{"listingId":"34ba4c13-c1be-4474-98e0-95a381b455ef","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/180/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.491Z","lastSeenAt":"2026-04-23T07:32:07.161Z"}],"details":{"listingId":"34ba4c13-c1be-4474-98e0-95a381b455ef","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/180/salary \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/180/salary"},{"claim":"The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/180/salary"}],"useCases":["Retrieving salary information for a specific employee on demand","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 subscriptions","Developers experimenting with x402 payment protocol on Base","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk payroll data exports across many employees","Use cases requiring detailed API documentation or guaranteed SLAs","Users without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.539Z"},"updatedAt":"2026-04-23T07:32:07.161Z"}}