{"id":"de6975f3-78e4-4c75-84d6-ae65a3eab52b","shortId":"m96aER","kind":"x402","title":"Pay-per-call employee data API on Base, settled in USDC via x402 protocol.","tagline":"Pay-per-call employee data API on Base, settled in USDC via x402 protocol.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #139) via the x402 payment protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC at a cost of $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys, rate limits, or subscriptions are required — each call is individually paid for via the X-PAYMENT header.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers multiple API categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. However, this specific endpoint (/api/v1/employees/139) is not listed among the advertised categories on the landing page, and no documentation describes the employee data schema or what fields are returned. The response MIME type is application/json.\n\nBecause the endpoint returned a valid 402 challenge with a well-formed x402 payload, it is confirmed live. The payTo address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 and the USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base. The maximum timeout for payment is 300 seconds.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","json-api","per-call-pricing","no-api-key"],"categories":["data"],"synonyms":["employee API","employee record","HR data endpoint","pay-per-call API","x402 employee","USDC API","Base network API","lowpaymentfee"],"warnings":["The /api/v1/employees/139 path is not listed among the provider's advertised API endpoints — it may be a demo, test, or undocumented resource.","No response schema or example response is available; the structure of returned employee data is unknown.","Documentation pages (/docs, /api, /pricing, /README) all returned only a 'Connect wallet' prompt with no actual content.","The endpoint targets a single hardcoded employee ID (139); it is unclear if other IDs are available or how to discover them."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/139","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/139","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, but there is no documentation on the employee data schema, no example responses, no OpenAPI spec, and the /employees/ path is not even listed among the provider's advertised APIs. The response format and fields are entirely 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'0.02':70,131 '000':74 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':192 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':199 '139':43 '20':73 '300':208 '402':175 '6':80 'Base network API' 'HR data endpoint' 'USDC API' 'accept':51 'access':36 'address':190 'advertis':144 'ai':120 'among':142 'analyt':119 'api':7,22,83,115 'application/json':168 'asset':196 'base':9,24,62,75,201 'base-network' 'broader':109 'call':4,19,92 'categori':116,145 'challeng':176 'confirm':186 'contract':197 'cost':68 'data':6,21,39,118,156 'decim':81 'describ':153 'document':152 'employe':5,20,38,41,155 'employee API' 'employee record' 'employee-data' 'endpoint':32,50,104,137,171 'field':160 'financ':123 'form':181 'header':102 'howev':134 'includ':117 'individu':94 'infrastructur':126 'json':56 'json-api' 'key':84 'land':148 'learn':122 'limit':86 'list':141 'live':187 'lowpaymentfee' 'lowpaymentfee.com':34,111 'machin':121 'maximum':203 'mime':165 'multipl':114 'network':63 'no-api-key' 'offer':113 'page':149 'paid':95 'part':106 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'payload':183 'payment':47,57,101,206 'payto':189 'per':3,18,71,132 'per-call-pricing' 'platform':110 'post':52 'price':129 'protocol':15,30,48 'provid':35 'rate':85 'record':42 'request':53,72,133 'requir':90 'respons':164 'return':55,162,172 'schema':157 'second':209 'settl':10,25,59 'specif':40,136 'subscript':88 'timeout':204 'type':166 'unit':76 'usdc':12,27,65,78,195 'usdc-settlement' 'use':64 'util':127 'valid':174 'via':13,28,44,97 'web3':124 'well':180 'well-form':179 'x':100 'x-payment':99 'x402':14,29,46,182 'x402 employee' 'x402-payment'","prices":[{"id":"c4f7756f-e55f-4844-8c7b-57c6c4738046","listingId":"de6975f3-78e4-4c75-84d6-ae65a3eab52b","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/139","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.368Z"}],"sources":[{"listingId":"de6975f3-78e4-4c75-84d6-ae65a3eab52b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/139","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.368Z","lastSeenAt":"2026-04-25T04:03:57.628Z"}],"details":{"listingId":"de6975f3-78e4-4c75-84d6-ae65a3eab52b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/139 \\\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 endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/139"},{"claim":"maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/139"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/139"},{"claim":"The /employees/ endpoint is not listed among the provider's advertised API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving employee record data on-demand without subscription","Integrating employee information into agent workflows with micropayments","Testing x402 payment protocol integrations with a low-cost endpoint"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee data without API key management","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk employee data exports (single-record endpoint, $0.02 each)","Use cases requiring documented response schemas before integration","Production HR systems needing guaranteed SLAs and support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.145Z"},"updatedAt":"2026-04-25T04:03:57.628Z"}}