{"id":"5bab8846-3c8f-4fb1-99b1-e049ec58a63c","shortId":"PJya9x","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 15) 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 x402 payment header to each request.\n\nThe hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3, and infrastructure utilities, all priced at $0.02 per request. This particular endpoint sits under what appears to be a sample or demo HR/employee resource path. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges with x402 version 1.\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 exact shape of the POST body and the structure of the salary response are unknown. Callers should expect a JSON response (mimeType is application/json) but will need to experiment to determine the precise format.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","salary-lookup","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","HR data API","salary lookup","x402 pay-per-call","USDC micropayment API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","Docs, pricing, API, and README pages all render only 'Connect wallet' with no usable content","The endpoint path is specific to employee ID 15; it is unclear whether other employee IDs are supported","The nature and source of the salary data is unverified — this may be demo/sample data"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/15/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/15/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 challenge, but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the endpoint path (employees/15/salary) appears to be a single hard-coded resource with unclear utility. Effectively a stub 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'1':157 '15':47 'HR data API' 'USDC micropayment API' 'accept':151 'access':82 'ai/ml':110 'analyt':109 'api':74,106,165 'appear':129 'application/json':218 'attach':85 'avail':193 'base':10,25,57 'base-network' 'bodi':200 'broad':99 'call':4,19,105 'caller':83,210 'captur':144 'catalog':100 'challeng':141,153 'coin':62 'confirm':145 'connect':173 'cost':65 'data':7,22,41,108 'demo':135 'detail':180 'determin':225 'doc':163 'document':158 'employe':5,20,39,45 'employee salary API' 'employee-data' 'enabl':34 'endpoint':8,23,35,71,125,147 'exact':195 'exampl':191 'expect':212 'experi':223 'extrem':160 'financ':112 'format':228 'header':89 'host':94 'hr/employee':136 'id':46 'infer':111 'infrastructur':115 'instant':81 'json':214 'key':75 'limit':78 'live':149 'lowpaymentfee' 'lowpaymentfee.com':37,96 'mimetyp':216 'need':221 'network':58 'no-api-key' 'offer':97 'openapi':184 'page':168 'particular':124 'path':138 'pay':2,17,103 'pay-per-cal':1,16,102 'pay-per-call' 'payload':192 'payment':52,88,152 'payroll data endpoint' 'per':3,18,68,104,121 'post':50,199 'precis':227 'price':118,164 'prompt':175 'provid':80 'rate':77 'readm':167 'render':170 'request':51,69,92,122 'request/response':187 'requir':72 'resourc':137 'respons':207,215 'return':38 'salari':6,21,40,206 'salary lookup' 'salary-lookup' 'sampl':133 'schema':188 'settl':13,28,54 'shape':196 'simpli':84 'sit':126 'site':95 'span':107 'spars':161 'spec':185 'specif':44 'structur':203 'success':143 'technic':179 'unknown':209 'usd':61 'usdc':15,30,60 'usdc-settlement' 'use':59 'util':116 'version':156 'via':11,26,48 'wallet':174 'web3':113 'x402':12,27,33,87,140,155 'x402 pay-per-call' 'x402-enabled':32 'x402-payment'","prices":[{"id":"3c9c1802-5845-4069-87b0-e726d541e611","listingId":"5bab8846-3c8f-4fb1-99b1-e049ec58a63c","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/15/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":"2026-04-21T18:32:14.617Z"}],"sources":[{"listingId":"5bab8846-3c8f-4fb1-99b1-e049ec58a63c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/15/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.617Z","lastSeenAt":"2026-04-23T09:02:02.277Z"}],"details":{"listingId":"5bab8846-3c8f-4fb1-99b1-e049ec58a63c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/15/salary \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 version 1 challenge, confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/employees/15/salary"},{"claim":"Payment is in USDC on Base network with maxAmountRequired of 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/15/salary"},{"claim":"Site advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee on demand","Integrating pay-per-call HR data into agent workflows","Demonstrating x402 payment protocol with a simple data endpoint"],"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","Production HR systems needing authenticated, auditable access","Users who need detailed API documentation before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.689Z"},"updatedAt":"2026-04-23T09:02:02.277Z"}}