{"id":"3d96bd06-ea46-4ae1-aaf6-fb65c0598424","shortId":"MrrVGS","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 #57) 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 settled on the Base network using USDC.\n\nThe specific resource `/api/v1/audit/logs/57` is labeled \"Premium API Access\" and accepts POST requests. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment on Base. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a 300-second timeout window.\n\nThe platform advertises a simple pricing model of $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access. Documentation pages exist at `/docs`, `/pricing`, and `/api` but currently render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for this or any other endpoint on the platform. The actual data returned by the audit logs endpoint is unknown — the description \"Premium API Access\" is generic and does not clarify what audit information is provided.","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 JSON schema available for request or response bodies","Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no content","The endpoint path '/api/v1/audit/logs/57' suggests a specific log entry but no context is given about what audit data is returned","The description 'Premium API Access' is generic and does not describe the actual resource","This specific audit-log endpoint is not listed on the homepage's API catalog — it may be unlisted or experimental"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/57","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/57","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 with clear pricing. However, there is no OpenAPI schema, no request/response examples, no documentation beyond a wallet-connect prompt, and the endpoint description is entirely generic ('Premium API Access'). The actual data returned is unknown, making integration 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'/api/v1/audit/logs/57':90 '/docs':183 '/pricing':184 '0.02':12,28,137,161 '000':128 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':146 '20':127 '300':149 '57':46 '6':133 'Base network API' 'USDC micropayment API' 'accept':97 'access':7,23,38,95,178,236 'across':164 'actual':222 'address':145 'advertis':155 'ai/ml':72 'amount':124 'analyt':71 'api':67,94,169,235 'attach':109 'audit':5,21,40,227,244 'audit log API' 'audit-logs' 'avail':211 'base':9,25,83,121,129 'base-network' 'broader':57 'call':4,20 'caller':108 'clarifi':242 'connect':192 'contain':115 'content':198 'current':188 'data':42,70,75,223 'decim':134 'descript':233 'detail':209 'document':179,210 'dozen':61 'endpoint':34,68,166,217,229 'entri':45 'equal':136 'exampl':206 'exist':181 'finance/web3':74 'generic':238 'handl':102 'header':114 'infer':73 'inform':245 'infrastructur':77 'inlin':103 'instant':177 'key':170 'label':92 'limit':173 'log':6,22,41,44,228 'lowpaymentfee' 'lowpaymentfee.com':36 'maximum':123 'minimum':175 'model':159 'network':84 'no-api-key' 'offer':60 'openapi':202 'page':180 'part':54 'pay':2,18,64 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request':63 'payment':50,100,113,119,141 'per':3,13,19,29,65,138,162 'platform':58,154,220 'post':98 'premium':93,234 'premium API access' 'price':158 'prompt':194 'protocol':51,107 'provid':37,247 'rate':172 'render':189 'request':14,30,66,99,139,163 'request/response':205 'requir':125 'resourc':89 'return':224 'schema':203 'second':150 'sent':143 'settl':80 'sign':117 'simpl':157 'span':69 'specif':43,88 'substant':197 'timeout':151 'unit':130 'unknown':231 'usdc':16,32,86,118,132 'usdc-settlement' 'use':85 'util':78 'via':10,26,47,104 'wallet':193 'window':152 'x':112 'x-payment':111 'x402':11,27,49,106 'x402 API' 'x402-payment'","prices":[{"id":"733f9f7a-88bd-4ec6-b9bd-7a661afde7f8","listingId":"3d96bd06-ea46-4ae1-aaf6-fb65c0598424","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/57","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:04.435Z"}],"sources":[{"listingId":"3d96bd06-ea46-4ae1-aaf6-fb65c0598424","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/57","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:04.435Z","lastSeenAt":"2026-04-27T06:33:42.594Z"}],"details":{"listingId":"3d96bd06-ea46-4ae1-aaf6-fb65c0598424","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/57 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\"","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/57"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, no minimums","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/57"},{"claim":"Documentation pages render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving audit log entry #57 via a single micropayment","Programmatic access to audit data without API key registration","Agent-driven data retrieval with inline USDC payment on Base"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or response schemas before integrating","Bulk audit log retrieval across many entries (only log #57 is exposed at this URL)","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.49Z"},"updatedAt":"2026-04-27T06:33:42.594Z"}}