{"id":"47aa3b60-2da5-4a13-9170-aaf82df82b40","shortId":"PsgaF9","kind":"x402","title":"Pay-per-call audit log access on Base via x402 — $0.02 per request in USDC.","tagline":"Pay-per-call audit log access on Base via x402 — $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 89) via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. All endpoints on the platform share a uniform $0.02 per request pricing model, settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/89` is labeled \"Premium API Access\" in the x402 challenge and returns JSON. It accepts POST requests and requires an X-PAYMENT header carrying a valid x402 payment proof. The x402 challenge confirms the endpoint is live, advertising a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. No API keys or rate limits are advertised; access is gated purely by micropayment.\n\nDocumentation beyond the landing page is extremely thin — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The exact structure of the audit log response and what parameters the POST body accepts are unknown from the available material.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","audit-logs","pay-per-request","no-api-key","json-response"],"categories":["data","infrastructure"],"synonyms":["audit log API","premium API access","x402 audit endpoint","lowpaymentfee","pay-per-call API","USDC micropayment API","Base network API"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","All documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompt with no technical content","The specific purpose and contents of audit log ID 89 are not described anywhere in the crawled material","The endpoint path references a hardcoded log ID (89); it is unclear if other IDs are available or how to discover them"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/89","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/89","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 challenge with clear pricing, but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and the exact purpose and data format of the audit log endpoint are undocumented. This is effectively a stub 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'/api/v1/audit/logs/89':107 '/docs':190 '/pricing':192 '/readme':194 '0.02':12,28,92,161 '000':150 '0x8335':155 '20':149 '2913':156 '6':165 '89':46 'Base network API' 'USDC micropayment API' 'accept':121,236 'access':7,23,38,112,175 'addit':205 'advertis':145,174 'ai/ml':77 'analyt':76 'api':73,111,168 'audit':5,21,40,227 'audit log API' 'audit-logs' 'avail':221,241 'base':9,25,102,151,158 'base-network' 'beyond':182 'bodi':235 'broad':66 'call':4,20 'carri':131 'catalog':67 'challeng':116,139 'confirm':140 'connect':200 'data':42,75,80 'decim':166 'detail':207 'document':181,216 'endpoint':34,57,85,142 'equal':160 'exact':223 'exampl':219 'extrem':187 'finance/web3':79 'gate':177 'given':162 'header':130 'host':64 'id':45 'infer':78 'infrastructur':82 'json':119 'json-response' 'key':169 'label':109 'land':184 'limit':172 'live':144 'log':6,22,41,44,228 'lowpaymentfee' 'lowpaymentfee.com':36,61 'mani':56 'materi':242 'maxamountrequir':147 'micropay':180 'model':96 'network':103 'no-api-key' 'offer':58 'one':54 'openapi':211 'page':185,195 'paramet':232 'pay':2,18,70 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request':69 'payload':220 'payment':50,129,135 'per':3,13,19,29,71,93 'platform':62,88 'post':122,234 'premium':110 'premium API access' 'price':95 'prompt':202 'proof':136 'protocol':51 'provid':37 'pure':178 'rate':171 'render':197 'request':14,30,72,94,123 'request/response':214 'requir':125 'resourc':106 'respons':229 'return':118 'schema':215 'settl':97 'share':89 'span':74 'spec':212 'specif':43,105 'structur':224 'technic':206 'thin':188 'uniform':91 'unit':152 'unknown':238 'usdc':16,32,99,154,163 'usdc-micropayment' 'util':83 'valid':133 'via':10,26,47 'wallet':201 'x':128 'x-payment':127 'x402':11,27,49,115,134,138 'x402 audit endpoint' 'x402-payment'","prices":[{"id":"5a016571-7121-412d-be11-4811e6a8f83c","listingId":"47aa3b60-2da5-4a13-9170-aaf82df82b40","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/89","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:15.917Z"}],"sources":[{"listingId":"47aa3b60-2da5-4a13-9170-aaf82df82b40","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/89","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:15.917Z","lastSeenAt":"2026-04-27T03:32:53.163Z"}],"details":{"listingId":"47aa3b60-2da5-4a13-9170-aaf82df82b40","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/89 \\\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 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/89"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/89"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving audit log entries on a per-request payment basis without needing an API key","Integrating pay-per-call audit data into agent workflows that settle in USDC on Base","Accessing structured audit records for compliance or monitoring purposes"],"bestFor":["Agents or services that need on-demand audit log access without subscription commitments","Developers experimenting with x402 micropayment-gated APIs","Low-volume consumers who prefer pay-per-use over monthly plans"],"notFor":["High-volume audit log consumers who need bulk export or streaming access","Users who need detailed API documentation or guaranteed SLAs before integrating","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:27.878Z"},"updatedAt":"2026-04-27T03:32:53.163Z"}}