{"id":"d45276cf-7c95-4282-98ba-deb1f9e5549b","shortId":"PAKAEy","kind":"x402","title":"Pay-per-call employee data API on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call employee data API on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically record ID 144) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider lowpaymentfee.com hosts a broader suite of APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with the same x402 payment model on Base.\n\nDocumentation is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the employee record contains or what input the POST body expects. The endpoint is confirmed live (returns 402 challenge), but the actual data shape and purpose remain unclear.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","per-call-pricing","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","employee record","HR data API","x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet' with no content","No OpenAPI or schema describing request body or response fields for the employee endpoint","Purpose and contents of employee record 144 are unknown — no field descriptions anywhere","The specific endpoint path (/api/v1/employees/144) suggests a single hardcoded record; unclear if other IDs are supported"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/144","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/144","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and documentation pages are empty stubs. The purpose and data shape of the employee endpoint are entirely undocumented, making this effectively a stub 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'/docs':169 '/pricing':170 '/readme':173 '/request':17,34 '0.02':16,33,83,153 '000':78 '0x8335':70 '144':47 '20':77 '2913':71 '402':217 '6':88 'Base network API' 'HR data API' 'USDC micropayment API' 'accept':54 'access':40 'actual':221 'ai/ml':124 'analysi':127 'analyt':123 'api':7,24,91,120 'attach':100 'base':9,26,65,79,163 'base-network' 'behind':48 'bodi':209 'broader':117 'call':4,21 'caller':98 'challeng':218 'classif':129 'confirm':214 'connect':179 'contain':203 'content':185 'contract':69 'convers':146 'cost':75 'data':6,23,43,122,222 'decim':89 'descript':196 'document':164 'embed':130 'employe':5,22,42,201 'employee API' 'employee record' 'employee-data' 'endpoint':36,53,149,212 'equal':82 'estim':140 'exampl':193 'exchang':135 'expect':210 'extrem':166 'feed':134 'field':199 'financ':131 'gas':139 'generat':147 'geocod':144 'header':105 'host':115 'id':46 'infer':125 'infrastructur':142 'input':206 'json':59 'json-response' 'key':92 'limit':95 'list':151 'live':215 'lowpaymentfee' 'lowpaymentfee.com':38,114 'maximum':74 'model':161 'network':66 'no-api-key' 'openapi':189 'page':174 'pay':2,19 'pay-per-cal':1,18 'pay-per-call API' 'payment':60,104,110,160 'paywal':51 'per':3,20,84,154 'per-call-pricing' 'post':55,208 'price':133 'prompt':181 'proof':111 'provid':39,113 'purpos':225 'quot':138 'rate':94,136 'record':45,202 'remain':226 'render':176 'request':56,85,155 'request/response':192 'requir':97 'return':58,216 'schema':190 'sentiment':126 'settl':12,29,62 'shape':223 'simpli':99 'span':121 'spars':167 'specif':44 'suit':118 'summar':128 'token':137 'unclear':227 'unit':80 'usdc':14,31,68,86 'usdc-settlement' 'use':67,87 'util':143 'valid':108,145 'via':10,27 'wallet':180 'web3':132 'x':103 'x-payment':102 'x402':11,28,50,109,159 'x402 API' 'x402-payment'","prices":[{"id":"09930b5c-16fc-4e8a-ac10-4dcbd96a5f55","listingId":"d45276cf-7c95-4282-98ba-deb1f9e5549b","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/144","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.273Z"}],"sources":[{"listingId":"d45276cf-7c95-4282-98ba-deb1f9e5549b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/144","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.273Z","lastSeenAt":"2026-04-25T04:03:57.546Z"}],"details":{"listingId":"d45276cf-7c95-4282-98ba-deb1f9e5549b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/144 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/employees/144"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/144"}],"useCases":["Retrieving employee record data on a pay-per-call basis without needing API keys","Integrating employee information into agent workflows that support x402 payments","Demonstrating x402 micropayment protocol usage on Base network"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need on-demand employee data without subscription commitments","Low-volume, pay-as-you-go data retrieval"],"notFor":["Production HR systems requiring well-documented, schema-validated APIs","High-volume bulk employee data exports (no documented batch endpoint)","Users without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.246Z"},"updatedAt":"2026-04-25T04:03:57.546Z"}}