{"id":"6a7bb84e-913d-4a1f-a7e0-dd7c96d329c9","shortId":"bw7bz2","kind":"x402","title":"Pay-per-call employee data API on Base network via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call employee data API on Base network via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #159) via the x402 payment protocol. It 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).\n\nThe provider lowpaymentfee.com hosts a broader catalog 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 priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payments are handled entirely through the x402 protocol on the Base L2 network.\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 schema, no request/response examples, and no description of what fields the employee endpoint returns or what input it expects beyond a POST body. The endpoint is confirmed live (returns a valid 402 challenge), but the lack of documentation makes it difficult to know what data is actually served.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 data API","pay-per-request API","Base USDC API","lowpaymentfee","employee endpoint","micropayment API"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no technical content","No OpenAPI or JSON schema describing request parameters or response structure for the employee endpoint","The specific data returned for employee #159 is unknown — no sample responses or field descriptions exist","The broader catalog lists many endpoints (AI, finance, utils) but none have documented schemas either"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/159","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/159","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 402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and all documentation pages are empty beyond a wallet-connect prompt. The actual data returned by the employee endpoint is completely 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'/docs':169 '/pricing':170 '/readme':173 '/request':18,36 '0.02':17,35,85,137 '000':80 '0x8335':72 '159':49 '20':79 '2913':73 '402':222 '6':90 'Base USDC API' 'accept':56 'access':42 'actual':237 'ai/ml':108 'analysi':111 'analyt':107 'api':7,25,104,142 'base':9,27,67,81,161 'base-network' 'beyond':210 'bodi':213 'broader':97 'call':4,22,103 'catalog':98 'challeng':223 'classif':113 'commit':150 'confirm':217 'connect':179 'contract':71 'convers':130 'cost':77 'data':6,24,45,106,235 'decim':91 'descript':197 'detail':186 'difficult':231 'document':164,228 'embed':114 'employe':5,23,44,47,202 'employee API' 'employee endpoint' 'employee record lookup' 'employee-data' 'endpoint':38,133,203,215 'entir':154 'equal':84 'estim':124 'exampl':194 'exchang':119 'expect':209 'extrem':166 'feed':118 'field':200 'financ':115 'gas':123 'generat':131 'geocod':128 'handl':153 'host':95 'infer':109 'infrastructur':126 'input':207 'json':61 'json-response' 'key':143 'know':233 'l2':162 'lack':226 'limit':146 'live':218 'lowpaymentfee' 'lowpaymentfee.com':40,94 'make':229 'maximum':76 'micropayment API' 'minimum':149 'network':10,28,68,163 'no-api-key' 'openapi':190 'page':174 'pay':2,20,101 'pay-per-cal':1,19,100 'pay-per-call' 'pay-per-request API' 'payment':53,62,151 'per':3,21,86,102,138 'post':57,212 'price':117,135 'prompt':181 'protocol':54,158 'provid':41,93 'quot':122 'rate':120,145 'record':48 'render':176 'request':58,87,139 'request/response':193 'return':60,204,219 'schema':191 'sentiment':110 'serv':238 'settl':13,31,64 'span':105 'spars':167 'specif':46 'summar':112 'technic':185 'token':121 'unit':82 'usdc':15,33,70,88 'usdc-settlement' 'use':69,89 'util':127 'valid':129,221 'via':11,29,50 'wallet':180 'web3':116 'x402':12,30,52,157 'x402 data API' 'x402-payment'","prices":[{"id":"9dc8a8fa-8e79-4028-8232-b94c63ac402a","listingId":"6a7bb84e-913d-4a1f-a7e0-dd7c96d329c9","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/159","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.598Z"}],"sources":[{"listingId":"6a7bb84e-913d-4a1f-a7e0-dd7c96d329c9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/159","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.598Z","lastSeenAt":"2026-04-25T01:33:25.043Z"}],"details":{"listingId":"6a7bb84e-913d-4a1f-a7e0-dd7c96d329c9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/159 \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/employees/159"},{"claim":"All endpoints priced at $0.02/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/159"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee record data on a per-call payment basis without needing an API key","Integrating pay-per-use employee data lookups into agent workflows via x402","Demonstrating x402 protocol payment flows on the Base network"],"bestFor":["Agents or developers who want keyless, pay-per-call access to employee data","x402 protocol integrators testing Base network USDC micropayments","Applications needing on-demand employee record retrieval without subscription commitments"],"notFor":["Bulk employee data exports or batch processing (no documented batch endpoint)","Users who need detailed API documentation or schema guarantees before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.772Z"},"updatedAt":"2026-04-25T01:33:25.043Z"}}