{"id":"bc35a457-cca6-4651-85bb-fb504931802a","shortId":"bk86wk","kind":"x402","title":"x402-paywalled employee salary endpoint on Base, settling in USDC at $0.02 per request.","tagline":"x402-paywalled employee salary endpoint on Base, settling in USDC at $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 156) via an x402 payment challenge. It is part of a broader platform offering dozens of pay-per-request API endpoints across data analytics, AI/ML, finance, and utility categories, all priced at $0.02 per call and settled in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. When called without payment, it returns a standard x402 challenge advertising a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 \"exact\" scheme to the specified payTo address. No API keys or rate limits are advertised; access is gated purely by micropayment.\n\nNote that the specific endpoint path (`/api/v1/employees/156/salary`) is not listed on the provider's landing page, which showcases analytics, AI, finance, and utility APIs instead. The nature and format of the salary data returned is undocumented — there is no OpenAPI schema, no example responses, and the docs/pricing/README pages all render only a wallet-connect prompt with no additional content. This makes it difficult to assess the actual utility or data quality of this particular endpoint.","tags":[],"capabilities":["x402-payment","usdc-base","employee-salary-data","pay-per-request","json-response","no-api-key"],"categories":["data"],"synonyms":["employee salary API","payroll data endpoint","x402 micropayment API","USDC pay-per-call","Base network API","lowpaymentfee"],"warnings":["This specific endpoint (/api/v1/employees/156/salary) is not listed among the provider's advertised APIs on the landing page.","No documentation exists for this endpoint — response format, required POST body, and data contents are all unknown.","All doc/pricing/README pages return only a wallet-connect prompt with no usable content.","The endpoint appears to expose employee salary data, which may involve sensitive/regulated PII depending on the data source."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/156/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/156/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 confirmed) and pricing is clear ($0.02 USDC on Base). However, this specific endpoint is not listed on the provider's own landing page, there is no OpenAPI schema, no example request/response, and all documentation pages render only a wallet-connect prompt with no content. The actual data returned is completely 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'0.02':13,28,77,122 '000':111 '0x8335':116 '156':44 '20':110 '2913':117 '6':126 'Base network API' 'USDC pay-per-call' 'accept':90 'access':36,149 'across':66 'actual':222 'addit':213 'address':140 'advertis':106,148 'ai':174 'ai/ml':69 'analyt':68,173 'api':64,142,178 'assess':220 'base':8,23,86,112,119 'broader':55 'call':79,97 'categori':73 'challeng':49,105 'connect':209 'content':214 'data':40,67,187,225 'decim':127 'difficult':218 'docs/pricing/readme':201 'dozen':58 'employe':4,19,38,42 'employee salary API' 'employee-salary-data' 'endpoint':6,21,32,65,89,159,230 'equal':121 'exact':134 'exampl':197 'financ':70,175 'format':183 'gate':151 'given':123 'id':43 'instead':179 'json':95 'json-response' 'key':143 'land':169 'limit':146 'list':164 'lowpaymentfee' 'lowpaymentfee.com':34 'made':130 'make':216 'maxamountrequir':108 'micropay':154 'natur':181 'network':87 'no-api-key' 'note':155 'offer':57 'openapi':194 'page':170,202 'part':52 'particular':229 'path':160 'pay':61 'pay-per-request':60 'payment':48,99,128 'payroll data endpoint' 'payto':139 'paywal':3,18 'per':14,29,62,78 'platform':56 'post':91 'price':75 'prompt':210 'provid':35,167 'pure':152 'qualiti':226 'rate':145 'render':204 'request':15,30,63,92 'respons':198 'return':94,101,188 'salari':5,20,39,186 'schema':195 'scheme':135 'settl':9,24,81 'showcas':172 'specif':41,158 'specifi':138 'standard':103 'undocu':190 'unit':113 'usdc':11,26,83,115,124 'usdc-base' 'util':72,177,223 'via':45,131 'wallet':208 'wallet-connect':207 'without':98 'x402':2,17,47,104,133 'x402 micropayment API' 'x402-payment' 'x402-paywalled':1,16","prices":[{"id":"f6626954-ac0a-43e5-9678-c82001c07b04","listingId":"bc35a457-cca6-4651-85bb-fb504931802a","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/156/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":"2026-04-21T18:32:14.842Z"}],"sources":[{"listingId":"bc35a457-cca6-4651-85bb-fb504931802a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/156/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.842Z","lastSeenAt":"2026-04-25T00:05:52.792Z"}],"details":{"listingId":"bc35a457-cca6-4651-85bb-fb504931802a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/156/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 provider's landing page lists APIs across data, AI, finance, and utility categories all priced at $0.02 per request.","source_url":"https://lowpaymentfee.com"},{"claim":"The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network.","source_url":"https://lowpaymentfee.com/api/v1/employees/156/salary"},{"claim":"The landing page advertises no API keys, no rate limits, instant access, and Base network settlement.","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving salary information for a specific employee via micropayment","Demonstrating x402 payment protocol integration with USDC on Base","Building payroll or HR data pipelines that pay per request"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee salary lookups without API key management","Micropayment-gated data access on Base L2"],"notFor":["Bulk payroll data exports (single-employee endpoint, no batch support documented)","Users who need detailed API documentation or response schemas before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.403Z"},"updatedAt":"2026-04-25T00:05:52.792Z"}}