{"id":"b2df1341-2fa0-41e1-a449-87e95aecd817","shortId":"AUU66b","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 provides access to employee salary data via a simple POST request. The specific resource `/api/v1/employees/111/salary` returns salary information for employee ID 111 in JSON format. Payment is handled inline using the x402 protocol on the Base network, settling in USDC (contract 0x8335…2913).\n\nThe endpoint charges a maximum of 0.02 USDC per request (20,000 base units with 6 decimals), consistent with the provider's site-wide flat pricing of $0.02/request. No API keys or accounts are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The provider advertises no rate limits and instant access.\n\nThe broader lowpaymentfee.com platform hosts a variety of x402-gated APIs spanning data/analytics, AI/ML inference, finance/Web3, and utility services, all at the same $0.02/call price point. Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed documentation for any endpoint, including this one. The actual data returned by this salary endpoint is unknown beyond the declared MIME type of application/json.","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","salary lookup","x402 salary","pay-per-request API","USDC micropayment API","lowpaymentfee"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or JSON schema describing request parameters or response format.","No example responses available; actual data returned is unknown.","The endpoint path suggests employee PII (salary data) — regulatory and privacy implications are unclear.","The broader platform lists many endpoints but none appear to have public documentation."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/111/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/111/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation, no OpenAPI schema, no request/response examples, and the docs pages are empty. The purpose and data format of the salary endpoint can only be guessed from the URL 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'/call':166 '/request':110 '0.02':87,109,165 '000':92 '0x8335':79 '111':59 '20':91 '2913':80 '6':96 'USDC micropayment API' 'access':39,140 'account':115 'actual':210 'advertis':134 'ai/ml':155 'api':112,152,175 'application/json':225 'attach':120 'base':10,25,73,93 'base-network' 'beyond':219 'broader':142 'call':4,19 'caller':118 'charg':83 'connect':184 'consist':98 'content':190 'contract':78 'data':7,22,43,211 'data/analytics':154 'decim':97 'declar':221 'detail':201 'doc':174 'document':169,202 'employe':5,20,41,57 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,82,205,216 'exampl':198 'extrem':171 'finance/web3':157 'flat':106 'format':62 'gate':151 'handl':65 'header':125 'host':145 'id':58 'includ':206 'infer':156 'inform':55 'inlin':66 'instant':139 'json':61 'key':113 'limit':137 'lowpaymentfee' 'lowpaymentfee.com':37,143 'maximum':85 'mime':222 'network':74 'no-api-key' 'one':208 'openapi':194 'page':179 'pay':2,17 'pay-per-cal':1,16 'pay-per-call' 'pay-per-request API' 'payment':63,124,130 'payroll data endpoint' 'per':3,18,89 'platform':144 'point':168 'post':47 'price':107,167,176 'prompt':186 'proof':131 'protocol':70 'provid':38,101,133 'rate':136 'readm':178 'render':181 'request':48,90 'request/response':197 'requir':117 'resourc':51 'return':53,212 'salari':6,21,42,54,215 'salary lookup' 'schema':195 'servic':160 'settl':13,28,75 'simpl':46 'simpli':119 'site':104 'site-wid':103 'span':153 'spars':172 'specif':50 'substant':189 'type':223 'unit':94 'unknown':218 'usdc':15,30,77,88 'usdc-settlement' 'use':67 'util':159 'valid':128 'varieti':147 'via':11,26,44 'wallet':185 'wide':105 'x':123 'x-payment':122 'x402':12,27,33,69,129,150 'x402 salary' 'x402-enabled':32 'x402-gated':149 'x402-payment'","prices":[{"id":"770746bc-06d6-483a-b52d-d1dd960200d8","listingId":"b2df1341-2fa0-41e1-a449-87e95aecd817","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/111/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":"2026-04-21T18:32:13.615Z"}],"sources":[{"listingId":"b2df1341-2fa0-41e1-a449-87e95aecd817","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/111/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.615Z","lastSeenAt":"2026-04-23T10:31:44.500Z"}],"details":{"listingId":"b2df1341-2fa0-41e1-a449-87e95aecd817","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/111/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 HTTP 402 with an x402 challenge advertising USDC on Base network at 20,000 base units.","source_url":"https://lowpaymentfee.com/api/v1/employees/111/salary"},{"claim":"The provider advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/employees/111/salary"}],"useCases":["Retrieving salary information for a specific employee on demand","Integrating pay-per-call salary data into HR or payroll workflows","Agent-driven lookups of compensation data without pre-registration"],"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, stable API contracts","Bulk salary data exports or batch processing","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.078Z"},"updatedAt":"2026-04-23T10:31:44.500Z"}}