{"id":"fe8ffc9d-3e97-454c-afdd-ed7be0d5d49d","shortId":"SBuxuH","kind":"x402","title":"Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 85) via the x402 payment protocol. It is part of a broader platform that offers dozens of pay-per-request API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/85` is labeled \"Premium API Access\" and accepts POST requests. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02 given USDC's 6 decimals) to the payTo address on Base. No API keys or accounts are required — authentication is purely payment-based. The endpoint returns JSON.\n\nDocumentation on the site is extremely thin. The docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI spec, no request/response schema, and no explanation of what the audit log payload contains. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data returned after payment is unknown. Prospective users should be aware that this is essentially a black-box endpoint with no documented input parameters or output format beyond the MIME type of application/json.","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 documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","No request or response schema provided; the actual payload structure is unknown.","The purpose and contents of 'audit/logs/85' are undocumented — it is unclear what audit data this returns or what system it relates to.","No OpenAPI or ai-plugin manifest found.","The broader platform lists many endpoints but none have documented schemas."],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/85","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/85","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI spec, no request/response schema, and no explanation of what data the audit log endpoint actually returns. The site's docs pages are empty. This is effectively a stub 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'/request':13,28 '0.02':12,27,80,131 '000':127 '20':126 '402':211 '6':135 '85':44 'Base network API' 'USDC micropayment API' 'accept':100 'access':7,22,36,98 'account':147 'actual':215 'addit':183 'address':140 'ai/ml':70 'analyt':69 'api':65,97,144,170 'application/json':249 'attach':112 'audit':5,20,38,199 'audit log API' 'audit-logs' 'authent':150 'awar':226 'base':9,24,88,128,142,155 'base-network' 'beyond':244 'black':233 'black-box':232 'box':234 'broader':55 'call':4,19 'caller':111 'challeng':212 'confirm':206 'connect':178 'contain':202 'content':184 'data':40,68,73,216 'decim':136 'doc':168 'document':160,238 'dozen':59 'endpoint':32,66,157,204,235 'essenti':230 'explan':195 'extrem':165 'finance/web3':72 'format':243 'given':132 'handl':105 'header':117 'i.e':130 'id':43 'infer':71 'infrastructur':75 'inlin':106 'input':239 'json':159 'key':145 'label':95 'live':207 'log':6,21,39,42,200 'lowpaymentfee' 'lowpaymentfee.com':34 'mime':246 'network':89 'no-api-key' 'offer':58 'openapi':188 'output':242 'page':173 'paramet':240 'part':52 'pay':2,17,62 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request':61 'payload':201 'payment':48,103,116,122,154,219 'payment-bas':153 'payto':139 'per':3,18,63,81 'platform':56 'post':101 'premium':96 'premium API access' 'price':78,169 'prompt':180 'proper':210 'prospect':222 'protocol':49,110 'provid':35 'pure':152 'readm':172 'render':175 'request':64,82,102 'request/response':191 'requir':149 'resourc':92 'return':158,208,217 'schema':192 'settl':83 'sign':120 'site':163 'span':67 'spec':189 'specif':41,91 'thin':166 'type':247 'unit':129 'unknown':221 'usdc':15,30,85,121,133 'usdc-settlement' 'user':223 'util':76 'via':10,25,45,107 'wallet':179 'x':115 'x-payment':114 'x402':11,26,47,109 'x402 API' 'x402-payment'","prices":[{"id":"fff7363c-808b-4db9-ba52-2de62dbe990f","listingId":"fe8ffc9d-3e97-454c-afdd-ed7be0d5d49d","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/85","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":"fe8ffc9d-3e97-454c-afdd-ed7be0d5d49d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/85","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":"fe8ffc9d-3e97-454c-afdd-ed7be0d5d49d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/85 \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/85"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/85"},{"claim":"All endpoints on the platform 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 endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving audit log records via a single micropayment without account signup","Agent-driven data retrieval where payment is embedded in the HTTP request","Accessing structured audit data on a per-call billing model"],"bestFor":["Developers or agents wanting zero-signup, pay-per-call audit log access","x402-compatible agents that can sign USDC payments on Base","Use cases where per-request billing is preferred over subscriptions"],"notFor":["Users who need documented request/response schemas before integrating","High-volume consumers who need bulk pricing or rate-limit guarantees","Anyone needing audit logs for a specific system — the data source is undocumented"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:27.872Z"},"updatedAt":"2026-04-27T03:32:53.163Z"}}