{"id":"786a4a66-3dc6-4900-99dd-1947ed06259d","shortId":"HGysc6","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 16) via the x402 payment protocol. It is part of a broader platform offering 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 call and settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/16` is described as \"Premium API Access\" and accepts POST requests. Payment is handled inline via the x402 protocol: callers include 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 provider's address on Base. No API keys, rate limits, or upfront commitments are required.\n\nDocumentation on the site is extremely thin — 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 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 what data to send or what response to expect.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-log-access","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","premium API access","x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No documentation available — all doc/pricing/API/README pages show only 'Connect wallet'","No OpenAPI or request/response schema provided","The specific purpose and data returned by /api/v1/audit/logs/16 is undocumented","This endpoint path (audit/logs/16) is not listed among the provider's advertised APIs on the homepage, raising questions about its intended use"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/16","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/16","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 402 challenge, confirming it accepts USDC payments on Base. However, documentation is essentially nonexistent — all doc pages render only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and the purpose of 'audit/logs/16' is unclear beyond the generic 'Premium API Access' label. This is effectively a stub 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'0.02':12,28,81,134 '000':130 '16':46 '20':129 '402':209 '6':138 'Base network API' 'USDC micropayment API' 'accept':103 'access':7,23,38,101 'actual':199 'address':144 'ai/ml':71 'analyt':70 'api':66,100,148,167 'audit':5,21,40,196 'audit log API' 'audit-log-access' 'base':9,25,90,131,146 'base-network' 'broader':57 'call':4,20,83 'caller':114 'challeng':210 'commit':154 'confirm':204 'connect':175 'content':181 'data':42,69,74,222 'decim':139 'describ':97 'descript':192 'difficult':218 'doc':165 'document':157,215 'dozen':60 'endpoint':34,67,198,202 'entri':45 'exampl':189 'expect':229 'extrem':162 'finance/web3':73 'given':135 'handl':108 'header':120 'i.e':133 'includ':115 'infer':72 'infrastructur':76 'inlin':109 'key':149 'know':220 'lack':213 'limit':151 'live':205 'log':6,22,41,44,197 'lowpaymentfee' 'lowpaymentfee.com':36 'make':216 'network':91 'no-api-key' 'offer':59 'openapi':185 'page':170 'part':54 'pay':2,18,63 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request':62 'payment':50,106,119,125 'per':3,13,19,29,64,82 'platform':58 'post':104 'premium':99 'premium API access' 'price':79,166 'prompt':177 'proper':208 'protocol':51,113 'provid':37,142 'rate':150 'readm':169 'render':172 'request':14,30,65,105 'request/response':188 'requir':156 'resourc':94 'respons':227 'return':200,206 'schema':186 'send':224 'settl':85 'sign':123 'site':160 'span':68 'specif':43,93 'substant':180 'thin':163 'unit':132 'upfront':153 'usdc':16,32,87,124,136 'usdc-settlement' 'util':77 'via':10,26,47,110 'wallet':176 'x':118 'x-payment':117 'x402':11,27,49,112 'x402 API' 'x402-payment'","prices":[{"id":"5a39debc-7149-48d3-809f-2f32581014d4","listingId":"786a4a66-3dc6-4900-99dd-1947ed06259d","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/16","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:54.680Z"}],"sources":[{"listingId":"786a4a66-3dc6-4900-99dd-1947ed06259d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/16","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:54.680Z","lastSeenAt":"2026-04-27T09:33:33.680Z"}],"details":{"listingId":"786a4a66-3dc6-4900-99dd-1947ed06259d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/16 \\\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 402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/16"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/16"}],"useCases":["Retrieving audit log records on a per-request payment basis","Programmatic access to audit data without API key management","Agent-driven data retrieval with inline USDC micropayments"],"bestFor":["Developers or agents needing one-off audit log lookups without subscriptions","x402-compatible agents that can sign USDC payments on Base","Low-friction API access without registration or rate limits"],"notFor":["Users who need detailed documentation or OpenAPI specs before integrating","Bulk audit log retrieval where per-request pricing would be expensive","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.86Z"},"updatedAt":"2026-04-27T09:33:33.680Z"}}