{"id":"376f27ff-ecf1-4465-a016-770f1f6851c8","shortId":"gBacbR","kind":"x402","title":"Pay-per-call employee data API on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call employee data API on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #54) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 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 pay-per-call 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 technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific data returned by the /api/v1/employees/54 endpoint is unknown beyond the stated mime type of application/json. The endpoint is confirmed live (returns a proper 402 challenge).","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 API","pay-per-request API","Base USDC API","lowpaymentfee","employee data endpoint"],"warnings":["No OpenAPI spec or schema documentation available","No example request or response payloads — the actual data returned is unknown","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","The specific meaning of employee record #54 is unexplained","Provider hosts many diverse API categories (AI, finance, geo, etc.) all at $0.02 — unclear if these are real production services or demonstrations"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/54","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/54","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 with a valid 402 challenge and clear pricing, but there is zero documentation on request parameters, response schema, or what employee data is actually returned. The docs, pricing, and README pages are all empty beyond a wallet connect prompt. This is effectively a stub 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'/api/v1/employees/54':203 '/docs':165 '/pricing':166 '/readme':169 '/request':13,28 '0.02':12,27,72,149 '000':76 '0x8335':66 '20':75 '2913':67 '402':222 '54':43 '6':80 'Base USDC API' 'accept':50 'access':36 'ai/ml':120 'analysi':123 'analyt':119 'api':7,22,83,116 'application/json':213 'attach':92 'avail':196 'base':9,24,61,77,159 'beyond':207 'broader':109 'call':4,19,115 'caller':90 'challeng':223 'classif':125 'confirm':217 'connect':175 'contract':65 'convers':142 'cost':70 'data':6,21,39,118,199 'decim':81 'detail':182 'document':160,191 'embed':126 'employe':5,20,38,41 'employee API' 'employee data endpoint' 'employee record lookup' 'employee-data' 'endpoint':32,145,204,215 'estim':136 'exampl':194 'exchang':131 'extrem':162 'feed':130 'financ':127 'gas':135 'generat':143 'geocod':140 'header':97 'host':107 'infer':121 'infrastructur':138 'json':55 'json-response' 'key':84 'limit':87 'list':147 'live':218 'lowpaymentfee' 'lowpaymentfee.com':34,106 'mime':210 'model':157 'network':62 'no-api-key' 'openapi':186 'page':170 'pay':2,17,113 'pay-per-cal':1,16,112 'pay-per-call' 'pay-per-request API' 'payload':195 'payment':47,56,96,102,156 'per':3,18,73,114,150 'post':51 'price':129 'prompt':177 'proof':103 'proper':221 'protocol':48 'provid':35,105 'quot':134 'rate':86,132 'record':42 'render':172 'request':52,74,151 'request/response':189 'requir':89 'return':54,200,219 'schema':190 'sentiment':122 'settl':58 'simpli':91 'span':117 'spars':163 'spec':187 'specif':40,198 'state':209 'suit':110 'summar':124 'technic':181 'token':133 'type':211 'unit':78 'unknown':206 'usdc':15,30,64 'usdc-base' 'use':63 'util':139 'valid':100,141 'via':10,25,44 'wallet':176 'web3':128 'x':95 'x-payment':94 'x402':11,26,46,101,155 'x402 API' 'x402-payment'","prices":[{"id":"bdecef60-ece4-4ddf-b7b7-ebbb703fb4fd","listingId":"376f27ff-ecf1-4465-a016-770f1f6851c8","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/54","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:17.132Z"}],"sources":[{"listingId":"376f27ff-ecf1-4465-a016-770f1f6851c8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/54","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.132Z","lastSeenAt":"2026-04-24T09:33:12.176Z"}],"details":{"listingId":"376f27ff-ecf1-4465-a016-770f1f6851c8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/54 \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","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 at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/employees/54"},{"claim":"All APIs priced at $0.02/request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/54"},{"claim":"Documentation pages render only 'Connect wallet' with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee record data on-demand with per-call USDC payment","Integrating employee information into agent workflows without API key management","Programmatic access to employee data with crypto-native micropayments"],"bestFor":["Agents or applications that need employee data with zero signup friction","Developers who prefer crypto micropayments over subscription billing","Scenarios requiring occasional, low-volume employee record lookups"],"notFor":["Production use cases requiring documented request/response schemas","High-volume bulk employee data retrieval (pay-per-call adds up)","Users without access to USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.15Z"},"updatedAt":"2026-04-24T09:33:12.176Z"}}