{"id":"ee1035cd-a818-484d-88f2-057c8f3ea195","shortId":"PMSuUt","kind":"x402","title":"HR reviews data endpoint, pay-per-call via x402 on Base with USDC at $0.02/request.","tagline":"HR reviews data endpoint, pay-per-call via x402 on Base with USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to HR review data (specifically resource ID 10) via a pay-per-request x402 protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a maximum cost of $0.02 per request (20,000 base units with 6 decimals). No API keys, rate limits, or upfront commitments are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider (lowpaymentfee.com) hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced uniformly at $0.02 per request. This specific endpoint sits under the HR reviews path (`/api/v1/hr/reviews/10`), but the provider's landing page does not list it among its advertised API categories, and no documentation, schema, or example responses are available for it. The exact shape of the response payload is unknown.\n\nBecause there is no OpenAPI spec, no request/response schema documentation, and the HR reviews endpoint is not mentioned on the provider's own landing page, the listing carries significant uncertainty about what data is actually returned and what input parameters (if any) the POST body accepts. The endpoint is confirmed live (402 challenge captured), but callers should experiment cautiously.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","hr-reviews","json-api","no-api-key"],"categories":["data"],"synonyms":["HR reviews API","employee reviews","human resources data","performance reviews","x402 paid API","Base USDC API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The /api/v1/hr/reviews/10 path is not listed among the provider's advertised APIs on the landing page","Request body format and response payload structure are completely unknown","The endpoint may be a demo, placeholder, or unlisted internal API"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/10","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/hr/reviews/10","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, but there is no OpenAPI spec, no request/response schema, no documentation, and the HR reviews path is not listed on the provider's own landing page. The actual data returned is entirely unknown, making this effectively a stub 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'page':159,213 'paramet':228 'path':152 'pay':6,23,52,124 'pay-per-cal':5,22,123 'pay-per-request':51 'payload':186 'payment':65,107,113 'per':7,24,53,82,125,142 'performance reviews' 'post':60,232 'price':138 'proof':114 'protocol':56 'provid':39,116,156,209 'rate':94 'request':54,61,83,143 'request/response':196 'requir':100 'resourc':46 'respons':175,185 'return':63,224 'review':2,19,43,151,202 'schema':172,197 'settl':67 'shape':182 'signific':217 'simpli':102 'sit':147 'span':128 'spec':194 'specif':45,145 'uncertainti':218 'uniform':139 'unit':87 'unknown':188 'upfront':97 'usdc':14,31,73 'usdc-base' 'use':72 'util':136 'valid':111 'via':9,26,49 'x':106 'x-payment':105 'x402':10,27,55,112 'x402 paid API' 'x402-payment'","prices":[{"id":"4ff79d6b-e9cc-458e-8420-290ac499a358","listingId":"ee1035cd-a818-484d-88f2-057c8f3ea195","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/hr/reviews/10","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.466Z"}],"sources":[{"listingId":"ee1035cd-a818-484d-88f2-057c8f3ea195","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/10","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.466Z","lastSeenAt":"2026-04-23T19:02:14.038Z"}],"details":{"listingId":"ee1035cd-a818-484d-88f2-057c8f3ea195","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/10 \\\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":"The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/10"},{"claim":"The provider advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/10"}],"useCases":["Retrieving HR review data for a specific resource (ID 10) on demand","Integrating pay-per-call HR data into agent workflows without API key management","Programmatic access to employee or performance review records"],"bestFor":["Agents needing on-demand HR review data without subscription overhead","Developers experimenting with x402 pay-per-call protocols on Base","Low-volume, ad-hoc lookups of HR review information"],"notFor":["Bulk or high-volume HR data exports (no documented batch endpoint)","Users who need detailed API documentation or guaranteed response schemas before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.557Z"},"updatedAt":"2026-04-23T19:02:14.038Z"}}