{"id":"187b15fc-2010-4436-955d-1160b60258b6","shortId":"eVkhf8","kind":"x402","title":"x402-gated employee salary data endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated employee salary data endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 197) via an x402 payment challenge. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind x402 micropayments on the Base network using USDC.\n\nThe specific endpoint `/api/v1/employees/197/salary` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nDocumentation is extremely sparse — the /docs, /pricing, /api, 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 description of what fields the salary response contains or what input the POST body expects. The endpoint is confirmed live (returns a valid 402 challenge), but the actual data behind it is undocumented. The employee salary use case is not listed among the platform's advertised API categories, making it unclear whether this is a demo/test endpoint or a production data source.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","employee-salary-data","pay-per-request","json-response"],"categories":["data"],"synonyms":["employee salary API","payroll data endpoint","x402 salary lookup","micropayment API","Base USDC API","lowpaymentfee","pay-per-call data"],"warnings":["No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.","No OpenAPI or schema definition for request or response bodies.","This specific endpoint (/api/v1/employees/197/salary) is not listed among the platform's advertised API categories, raising questions about whether it is a test/demo endpoint.","Unknown data provenance — no information on where employee salary data originates or its accuracy."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/197/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/197/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 with clear pricing, but there is zero documentation on request format, response schema, or what data is actually returned. The employee salary endpoint is not even listed among the platform's advertised APIs. No OpenAPI spec, no examples, and all doc pages are 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'/api/v1/employees/197/salary':90 '/docs':151 '/pricing':152 '/readme':155 '/request':129 '0.02':117,128 '000':106 '0x8335':111 '197':44 '20':105 '2913':112 '402':201 '6':122 'Base USDC API' 'accept':91 'access':36 'across':131 'actual':205 'advertis':100,126,223 'ai/ml':69 'among':219 'analyt':68 'api':64,136,224 'base':9,24,83,107,114 'base-network' 'behind':78,207 'bodi':191 'broader':55 'call':63 'case':215 'categori':225 'challeng':49,99,202 'commit':144 'confirm':196 'connect':161 'contain':185 'content':167 'cost':103 'crypto':72 'data':6,21,40,67,206,238 'decim':123 'demo/test':233 'descript':178 'document':146 'dozen':58 'employe':4,19,38,42,212 'employee salary API' 'employee-salary-data' 'endpoint':7,22,32,65,89,133,194,234 'equal':116 'exampl':175 'expect':192 'extrem':148 'field':181 'financ':71 'gate':3,18,77 'id':43 'infer':70 'input':188 'json':96 'json-response' 'key':137 'limit':140 'list':218 'live':197 'lowpaymentfee' 'lowpaymentfee.com':34 'make':226 'maximum':102 'micropay':80 'micropayment API' 'minimum':143 'network':84 'offer':57 'openapi':171 'page':156 'part':52 'pay':11,26,61 'pay-per-cal':60 'pay-per-call data' 'pay-per-request':10,25 'payment':48 'payroll data endpoint' 'per':12,27,62,118 'platform':56,125,221 'post':92,190 'price':130 'product':237 'prompt':163 'provid':35 'rate':139 'render':158 'request':13,28,93,119 'request/response':174 'requir':145 'respons':184 'return':95,198 'salari':5,20,39,183,213 'schema':172 'servic':75 'sourc':239 'span':66 'spars':149 'specif':41,88 'substant':166 'unclear':228 'undocu':210 'uniform':127 'unit':108 'usdc':15,30,86,110,120 'usdc-micropayment' 'use':85,121,214 'util':74 'valid':200 'via':45 'wallet':162 'whether':229 'x402':2,17,47,79,98 'x402 salary lookup' 'x402-gated':1,16 'x402-payment'","prices":[{"id":"80950bb0-a085-41eb-8343-028f0cf5cb52","listingId":"187b15fc-2010-4436-955d-1160b60258b6","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/197/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":"2026-04-21T18:32:16.272Z"}],"sources":[{"listingId":"187b15fc-2010-4436-955d-1160b60258b6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/197/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.272Z","lastSeenAt":"2026-04-24T15:03:30.897Z"}],"details":{"listingId":"187b15fc-2010-4436-955d-1160b60258b6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/197/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":"The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/197/salary"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/197/salary"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee record","Demonstrating x402 micropayment-gated API access","Integrating pay-per-call data retrieval into agent workflows"],"bestFor":["Developers experimenting with x402 payment protocols","Agents needing on-demand data access without API key management","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk payroll data exports (single-employee endpoint, no batch support documented)","Users needing detailed API documentation or schema guarantees before integration","Production HR/payroll systems requiring authenticated, auditable data sources"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.449Z"},"updatedAt":"2026-04-24T15:03:30.897Z"}}