{"id":"bf0fe084-d188-4b60-982f-a9dbf55a7863","shortId":"vnZN9C","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 entry 13) via the x402 payment protocol. It is part of a broader platform that offers a variety of API categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request, payable in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/13` is described as \"Premium API Access\" and accepts POST requests. Payment is settled on-chain using USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised; callers simply attach an x402 payment header to each request. The payment timeout is 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed description of what the audit log endpoint actually returns. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know the exact shape of the response or what parameters the POST body should contain.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access"],"warnings":["No OpenAPI or schema documentation available for this endpoint","All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no content","The exact request body format and response structure for /api/v1/audit/logs/13 are unknown","The endpoint path suggests a specific log entry (ID 13) but no context is given for what audit logs contain"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/13","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/13","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond the landing page listing. The specific purpose of the audit logs endpoint is unexplained, and all doc pages render only a wallet-connect 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'0.02':12,28,80,128 '000':123 '0x8335':113 '13':46 '20':122 '2913':114 '300':155 '402':210 '6':131 'Base network API' 'USDC micropayment API' 'accept':101 'access':7,23,38,99 'actual':200 'advertis':140 'ai':69 'amount':120 'analyt':68 'api':64,98,134,167 'attach':143 'audit':5,21,40,197 'audit log API' 'audit-logs' 'base':9,25,88,116,124 'base-network' 'bodi':233 'broader':57 'call':4,20 'caller':141 'categori':65 'chain':109 'challeng':211 'confirm':205 'connect':175 'contain':235 'content':181 'contract':112 'data':42,67 'decim':132 'describ':95 'descript':193 'detail':192 'difficult':219 'doc':165 'document':157,216 'endpoint':34,199,203 'entri':45 'equal':127 'exact':223 'exampl':189 'extrem':162 'financ':72 'header':147 'includ':66 'infrastructur':75 'key':135 'know':221 'lack':214 'learn':71 'limit':138 'live':206 'log':6,22,41,44,198 'lowpaymentfee' 'lowpaymentfee.com':36 'machin':70 'make':217 'maximum':119 'network':89 'no-api-key' 'offer':60 'on-chain':107 'openapi':185 'page':170 'paramet':230 'part':54 'pay':2,18 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request' 'payabl':83 'payment':50,104,146,152 'per':3,13,19,29,81 'platform':58 'post':102,232 'premium':97 'premium API access' 'price':78,166 'prompt':177 'proper':209 'protocol':51 'provid':37 'rate':137 'readm':169 'render':172 'request':14,30,82,103,150 'request/response':188 'resourc':92 'respons':227 'return':201,207 'schema':186 'second':156 'settl':106 'shape':224 'simpli':142 'site':160 'spars':163 'specif':43,91 'substant':180 'timeout':153 'unit':125 'usdc':16,32,85,111,129 'usdc-settlement' 'use':110,130 'util':76 'varieti':62 'via':10,26,47 'wallet':176 'web3':73 'x402':11,27,49,145 'x402 API' 'x402-payment'","prices":[{"id":"09449543-105d-479c-80b5-a05955fe9a65","listingId":"bf0fe084-d188-4b60-982f-a9dbf55a7863","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/13","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:52.242Z"}],"sources":[{"listingId":"bf0fe084-d188-4b60-982f-a9dbf55a7863","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/13","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:52.242Z","lastSeenAt":"2026-04-27T09:33:33.559Z"}],"details":{"listingId":"bf0fe084-d188-4b60-982f-a9dbf55a7863","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/13 \\\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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/13"},{"claim":"All APIs 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":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/13"}],"useCases":["Retrieving audit log entries with per-request micropayments","Programmatic access to log data without managing API keys or subscriptions","Agent-driven data retrieval settled on Base L2 in USDC"],"bestFor":["Developers wanting keyless, pay-per-use audit log access","AI agents that can settle x402 payments on Base","Users who prefer on-chain micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:29.051Z"},"updatedAt":"2026-04-27T09:33:33.559Z"}}