{"id":"9dfaefc3-1b3b-44a2-9403-4be7c9fe57e0","shortId":"54mDkg","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 employee ID 124) 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 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 priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.\n\nThis specific endpoint (/api/v1/employees/124) is not listed on the provider's public landing page among the advertised API categories, so its exact response schema and data contents are unclear. The x402 challenge was successfully captured (HTTP 402), confirming the endpoint is live. However, no OpenAPI spec, detailed documentation, or example responses were available from the crawled pages — the docs, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","staff data endpoint","personnel lookup","x402 API","pay-per-request API","USDC micropayment API","lowpaymentfee"],"warnings":["No OpenAPI specification or response schema available","Endpoint /api/v1/employees/124 is not listed among the provider's publicly advertised APIs — purpose and data contents are unclear","All documentation pages (docs, pricing, README) returned only 'Connect wallet' with no substantive content","Response format and fields are entirely unknown — no example responses available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/124","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/124","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documentation, no example responses, and the specific employee endpoint is not listed among the provider's advertised APIs. The docs/pricing/README pages returned no useful 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'/request':17,34 '0.02':16,33,83,135 '000':78 '0x8335':70 '124':47 '20':77 '2913':71 '402':186 '6':88 'USDC micropayment API' 'accept':54 'access':40 'advertis':166 'ai/ml':106 'among':164 'analysi':109 'analyt':105 'api':7,24,102,140,167 'avail':202 'base':9,26,65,79 'base-network' 'broader':95 'call':4,21,101 'captur':184 'categori':168 'challeng':181 'classif':111 'commit':148 'confirm':187 'connect':217 'content':176,223 'contract':69 'convers':128 'cost':75 'crawl':205 'data':6,23,43,104,175 'decim':89 'detail':196 'doc':208 'document':197 'embed':112 'employe':5,22,42,45 'employee API' 'employee-data' 'endpoint':36,131,152,189 'equal':82 'estim':122 'exact':171 'exampl':199 'exchang':117 'feed':116 'financ':113 'gas':121 'generat':129 'geocod':126 'host':93 'howev':192 'http':185 'id':46 'infer':107 'infrastructur':124 'json':59 'json-response' 'key':141 'land':162 'limit':144 'list':156 'live':191 'lowpaymentfee' 'lowpaymentfee.com':38,92 'maximum':74 'minimum':147 'network':66 'no-api-key' 'openapi':194 'page':163,206,212 'pay':2,19,99 'pay-per-cal':1,18,98 'pay-per-call' 'pay-per-request API' 'payment':51,60 'per':3,20,84,100,136 'personnel lookup' 'post':55 'price':115,133,209 'prompt':219 'protocol':52 'provid':39,91,159 'public':161 'quot':120 'rate':118,143 'readm':211 'request':56,85,137 'requir':149 'respons':172,200 'return':58,214 'schema':173 'sentiment':108 'settl':12,29,62 'span':103 'spec':195 'specif':44,151 'staff data endpoint' 'substant':222 'success':183 'suit':96 'summar':110 'token':119 'unclear':178 'unit':80 'usdc':14,31,68,86 'usdc-settlement' 'use':67,87 'util':125 'valid':127 'via':10,27,48 'wallet':218 'web3':114 'x402':11,28,50,180 'x402 API' 'x402-payment'","prices":[{"id":"d7bd70a4-c4ae-4092-a635-7d7b3fc3db29","listingId":"9dfaefc3-1b3b-44a2-9403-4be7c9fe57e0","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/124","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:13.863Z"}],"sources":[{"listingId":"9dfaefc3-1b3b-44a2-9403-4be7c9fe57e0","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/124","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.863Z","lastSeenAt":"2026-04-25T07:04:08.054Z"}],"details":{"listingId":"9dfaefc3-1b3b-44a2-9403-4be7c9fe57e0","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/124 \\\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":"x402 challenge returns 402 with maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/124"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/124"},{"claim":"Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Provider offers APIs across data & analytics, AI/ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving employee record data for employee ID 124 on demand","Integrating pay-per-call employee lookups into agent workflows","Demonstrating x402 payment protocol integration with USDC on Base"],"bestFor":["Agents needing on-demand employee data without API key management","Developers experimenting with x402 payment protocol on Base","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk employee data exports or batch processing","Use cases requiring detailed API documentation or guaranteed SLAs","Querying arbitrary employee IDs (this endpoint is scoped to ID 124)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.749Z"},"updatedAt":"2026-04-25T07:04:08.054Z"}}