{"id":"b216ab66-ef48-4a10-8bca-34a2a22ec2da","shortId":"kmMUCJ","kind":"x402","title":"Pay-per-call employee data API on Base, settled in USDC via x402 at $0.02/request.","tagline":"Pay-per-call employee data API on Base, settled in USDC via x402 at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #190) via an x402-gated API. 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 broader lowpaymentfee.com platform advertises a range of pay-per-call APIs across categories including data & analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation) — all priced at $0.02 per request. However, the specific endpoint being listed here (/api/v1/employees/190) is not explicitly documented on the site's landing page, so its exact response schema and data source are unclear.\n\nThe endpoint is confirmed live: it returns a proper 402 challenge with x402 version 1 headers. The payment timeout is 300 seconds. Documentation beyond the landing page is extremely thin — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","json-api","pay-per-call","no-api-key"],"categories":["data"],"synonyms":["employee API","staff data","personnel record","x402 API","pay-per-request API","USDC micropayment API","Base network API"],"warnings":["The /api/v1/employees/190 endpoint is not listed among the provider's advertised APIs on the landing page — its purpose and data source are unverified.","No response schema or example response is available; the shape of returned employee data is unknown.","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no technical content.","The endpoint path suggests it returns a single hardcoded employee record (#190); unclear if other IDs are supported or what the data represents."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/190","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/190","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documented response format, and the /employees/190 path is not mentioned on the site's own landing page. Docs pages are empty beyond a wallet-connect prompt. The actual data returned is 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'/request':17,34 '0.02':16,33,85,158 '000':80 '0x8335':72 '1':203 '190':47 '20':79 '2913':73 '300':209 '402':198 '6':90 'Base network API' 'USDC micropayment API' 'accept':56 'access':40 'across':127 'addit':235 'advertis':118 'ai/ml':132 'analysi':134 'analyt':131 'api':7,24,53,93,126,221 'attach':102 'base':9,26,67,81 'base-network' 'beyond':212 'broader':115 'call':4,21,125 'caller':100 'categori':128 'challeng':199 'classif':136 'confirm':192 'connect':230 'contract':71 'convers':153 'cost':77 'data':6,23,43,130,185 'decim':91 'detail':237 'doc':220 'document':172,211 'embed':137 'employe':5,22,42,45 'employee API' 'employee-data' 'endpoint':36,55,164,190 'equal':84 'estim':147 'exact':181 'exchang':142 'explicit':171 'extrem':217 'feed':141 'financ':138 'gas':146 'gate':52 'generat':154 'geocod':151 'header':107,204 'howev':161 'includ':129 'infrastructur':149 'json':61 'json-api' 'key':94 'land':177,214 'limit':97 'list':166 'live':193 'lowpaymentfee.com':38,116 'maximum':76 'network':68 'no-api-key' 'page':178,215,225 'pay':2,19,123 'pay-per-cal':1,18,122 'pay-per-call' 'pay-per-request API' 'payment':62,106,112,206 'per':3,20,86,124,159 'personnel record' 'platform':117 'post':57 'price':140,156,222 'prompt':232 'proof':113 'proper':197 'provid':39 'quot':145 'rang':120 'rate':96,143 'readm':224 'record':46 'render':227 'request':58,87,160 'requir':99 'respons':182 'return':60,195 'schema':183 'second':210 'sentiment':133 'settl':10,27,64 'simpli':101 'site':175 'sourc':186 'specif':44,163 'staff data' 'summar':135 'technic':236 'thin':218 'timeout':207 'token':144 'unclear':188 'unit':82 'usdc':12,29,70,88 'usdc-settlement' 'use':69,89 'util':150 'valid':110,152 'version':202 'via':13,30,48 'wallet':231 'web3':139 'x':105 'x-payment':104 'x402':14,31,51,111,201 'x402 API' 'x402-gated':50 'x402-payment'","prices":[{"id":"42b59217-f988-491d-a80c-6d4278fac758","listingId":"b216ab66-ef48-4a10-8bca-34a2a22ec2da","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/190","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:15.506Z"}],"sources":[{"listingId":"b216ab66-ef48-4a10-8bca-34a2a22ec2da","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/190","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:15.506Z","lastSeenAt":"2026-04-24T20:03:38.535Z"}],"details":{"listingId":"b216ab66-ef48-4a10-8bca-34a2a22ec2da","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/190 \\\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 version 1 challenge, accepting USDC on Base network with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/employees/190"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/190"},{"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":"Platform lists APIs across data & analytics, AI/ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving employee record data on demand with per-call USDC micropayments","Integrating employee information into agent workflows without managing API keys","Demonstrating x402 payment protocol integration on Base network"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents that need on-demand employee data without subscription commitments","Low-volume, pay-as-you-go data retrieval"],"notFor":["High-volume bulk employee data exports (no documented batch endpoint)","Users who need detailed API documentation or response schema guarantees","Non-crypto users without Base network USDC access"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:16.477Z"},"updatedAt":"2026-04-24T20:03:38.535Z"}}