{"id":"2c4d3e17-df41-4490-9209-dbd054d7d2b3","shortId":"URawvB","kind":"x402","title":"Pay-per-call audit log retrieval on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call audit log retrieval on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com provides access to audit log records via a simple POST request. The specific resource `/api/v1/audit/logs/1` returns audit log data in JSON format, paid per-call using USDC on the Base network. The endpoint uses the x402 \"exact\" payment scheme, requiring a one-time micropayment of $0.02 (20,000 base units of USDC with 6 decimals) per request.\n\nThe broader lowpaymentfee.com platform advertises a wide catalog of pay-per-call APIs spanning 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 endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payments settle on the Base L2 network in USDC (contract 0x8335…2913).\n\nDocumentation is extremely sparse — the /docs, /api, /pricing, 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 usage examples available from the crawl. The audit logs endpoint is confirmed live (returns a proper 402 challenge), but the actual shape of the response data and accepted request body parameters are unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-call","no-api-key","json-response"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 micropayment API","pay-per-request API","USDC API","Base network API","lowpaymentfee","audit trail endpoint"],"warnings":["No API documentation available; /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content","No OpenAPI or schema definition found for any endpoint","The specific /api/v1/audit/logs/1 endpoint is not listed in the homepage catalog — its purpose and data shape are unverified","Request body format and response structure are completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/1","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/audit/logs/1","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 documentation is essentially nonexistent — no OpenAPI spec, no request/response schemas, no examples. The audit logs endpoint is not even listed on the homepage catalog. The actual functionality and data shape are entirely 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'/api/v1/audit/logs/1':56 '/docs':177 '/pricing':179 '/readme':181 '/request':17,34 '0.02':16,33,89,146 '000':91 '0x8335':170 '20':90 '2913':171 '402':222 '6':97 'Base network API' 'USDC API' 'accept':233 'access':43 'actual':226 'advertis':105 'ai/ml':118 'analysi':120 'analyt':117 'api':114,151 'audit':5,22,45,58,213 'audit log API' 'audit trail endpoint' 'audit-logs' 'avail':208 'base':9,26,72,92,164 'base-network' 'bodi':235 'broader':102 'call':4,21,67,113 'catalog':108 'challeng':223 'classif':122 'commit':159 'confirm':217 'connect':187 'contract':169 'convers':139 'crawl':211 'data':60,116,231 'decim':98 'detail':194 'document':172,203 'embed':123 'enabl':38 'endpoint':39,75,142,215 'estim':133 'exact':79 'exampl':207 'exchang':128 'extrem':174 'feed':127 'financ':124 'format':63 'gas':132 'generat':140 'geocod':137 'infrastructur':135 'json':62 'json-response' 'key':152 'l2':165 'limit':155 'list':144 'live':218 'log':6,23,46,59,214 'lowpaymentfee' 'lowpaymentfee.com':41,103 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'x402-payment'","prices":[{"id":"fe12c2b8-5d94-4584-9d23-6e662fc5b232","listingId":"2c4d3e17-df41-4490-9209-dbd054d7d2b3","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/audit/logs/1","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:51.652Z"}],"sources":[{"listingId":"2c4d3e17-df41-4490-9209-dbd054d7d2b3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/1","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:51.652Z","lastSeenAt":"2026-04-27T09:33:33.533Z"}],"details":{"listingId":"2c4d3e17-df41-4490-9209-dbd054d7d2b3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/1 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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, exact scheme, on Base network, requiring 20000 base units of USDC","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/1"},{"claim":"All endpoints are listed at $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/1"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving audit log entries on a per-call payment basis without needing an API key","Integrating pay-as-you-go audit data retrieval into agent workflows","Accessing structured audit records settled via crypto micropayments on Base"],"bestFor":["Agents or services that need on-demand audit log access without subscription commitments","Developers experimenting with x402 payment-gated API patterns","Low-volume consumers who prefer per-call pricing over monthly plans"],"notFor":["High-volume audit log consumers who need bulk export or streaming access","Users who require detailed API documentation or OpenAPI specs before integration","Teams that cannot settle payments in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:29.102Z"},"updatedAt":"2026-04-27T09:33:33.533Z"}}