{"id":"0c82fa8e-081c-4a5f-b105-1b6a64ee01b5","shortId":"ePmCRS","kind":"x402","title":"Pay-per-call audit logs endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call audit logs endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 3) via a POST request. Payment is handled inline using the x402 protocol: callers attach a cryptographic payment header and the endpoint charges per request in USDC on the Base network.\n\nThe specific endpoint `/api/v1/audit/logs/3` is part of a broader platform that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request. The x402 challenge confirms the price as 20,000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the \"exact\" payment scheme.\n\nDocumentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples. The endpoint is confirmed live (returns 402 with a valid x402 challenge), but the actual shape of the audit log data returned after payment is unknown. The platform advertises no API keys, no rate limits, and instant access.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-call","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","pay-per-request API","USDC micropayment API","lowpaymentfee","Base network API","audit trail endpoint"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","All documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompt with no content","The specific purpose and data shape of '/api/v1/audit/logs/3' is undocumented; 'audit logs' is the only descriptor","No information on data freshness, uptime guarantees, or error handling"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/3","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/3","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and no examples. The actual data returned by this audit logs endpoint is completely 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'/api/v1/audit/logs/3':85 '/docs':160 '/pricing':162 '/readme':164 '/request':17,34 '0.02':16,33,114,134 '000':125 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':140 '20':124 '3':51 '402':196 '6':130 'Base network API' 'USDC micropayment API' 'access':43,227 'actual':204 'address':139 'advertis':218 'ai/ml':104 'analyt':103 'api':100,220 'attach':65 'audit':5,22,45,208 'audit log API' 'audit trail endpoint' 'audit-logs' 'avail':154 'base':9,26,80,126 'base-network' 'broader':90 'call':4,21,99 'caller':64 'challeng':119,201 'charg':73 'confirm':120,193 'connect':170 'content':176 'cryptograph':67 'data':47,102,107,210 'decim':131 'document':146,185 'dozen':94 'enabl':38 'endpoint':7,24,39,72,84,155,191 'equal':133 'exact':143 'exampl':189 'extrem':148 'finance/web3':106 'handl':58 'header':69 'id':50 'infer':105 'infrastructur':109 'inlin':59 'instant':226 'key':221 'land':151 'limit':224 'list':153 'live':194 'log':6,23,46,49,209 'lowpaymentfee' 'lowpaymentfee.com':41 'network':81 'no-api-key' 'offer':93 'openapi':180 'page':152,165 'part':87 'pay':2,19,97 'pay-per-cal':1,18,96 'pay-per-call' 'pay-per-request API' 'payment':56,68,135,144,213 'per':3,20,74,98,115 'platform':91,217 'post':54 'price':112,122,157 'prompt':172 'protocol':63 'provid':42 'rate':223 'render':167 'request':55,75,116 'request/response':183 'return':195,211 'schema':184 'scheme':145 'sent':137 'settl':12,29 'shape':205 'span':101 'spars':149 'spec':181 'specif':48,83 'substant':175 'unit':127 'unknown':215 'usag':188 'usdc':14,31,77,129 'usdc-settlement' 'use':60,141 'util':110 'valid':199 'via':10,27,52 'wallet':171 'x402':11,28,37,62,118,200 'x402 API' 'x402-enabled':36 'x402-payment'","prices":[{"id":"b8f02cd5-866a-4de0-b573-c7f4f8a97d4a","listingId":"0c82fa8e-081c-4a5f-b105-1b6a64ee01b5","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/3","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:59.584Z"}],"sources":[{"listingId":"0c82fa8e-081c-4a5f-b105-1b6a64ee01b5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/3","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:59.584Z","lastSeenAt":"2026-04-27T07:04:40.733Z"}],"details":{"listingId":"0c82fa8e-081c-4a5f-b105-1b6a64ee01b5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/3 \\\n  -H \"X-PAYMENT: <x402-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 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/3"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving audit log entries on a per-call payment basis without needing an API key","Integrating pay-per-use audit data into automated agent workflows","Testing x402 protocol payment flows against a live endpoint"],"bestFor":["Agents or developers wanting keyless, pay-per-call audit log access","Exploring x402 protocol integrations on Base","Low-volume or sporadic audit data retrieval without subscription commitments"],"notFor":["High-volume audit log ingestion where per-call pricing becomes expensive","Use cases requiring detailed API documentation or guaranteed SLAs","Users who need audit logs in non-JSON formats or with complex query parameters"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.729Z"},"updatedAt":"2026-04-27T07:04:40.733Z"}}