{"id":"90e09d75-67a1-4299-95d5-15e3664e7a71","shortId":"sUFXcQ","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 ID 64) 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/64` 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 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. However, documentation beyond the landing page is essentially empty (all doc/pricing/API pages only show a \"Connect wallet\" prompt), so the exact request body schema and response format for this audit logs endpoint are unknown. The endpoint is confirmed live — it returns a proper 402 challenge — but the lack of documentation means callers will need to experiment or contact the provider to understand the expected input and output formats.","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 API documentation available — all doc pages show only 'Connect wallet' with no content","Request body schema and response format are completely unknown","The endpoint path '/api/v1/audit/logs/64' suggests a specific log record but the purpose and data model are undocumented","This specific audit-log endpoint is not listed on the provider's landing page among the advertised APIs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/64","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/64","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 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation of request/response formats, and all doc pages are empty beyond a wallet-connect prompt. The endpoint path suggests audit log retrieval but the actual functionality and data returned are 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'0.02':12,28,137,161 '000':128 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':146 '20':127 '300':149 '402':222 '6':133 '64':46 'Base network API' 'USDC micropayment API' 'accept':97 'access':7,23,38,95,178 'across':164 'address':145 'advertis':155 'ai/ml':72 'amount':124 'analyt':71 'api':67,94,169 'attach':109 'audit':5,21,40,208 'audit log API' 'audit-logs' 'base':9,25,83,121,129 'base-network' 'beyond':181 'bodi':201 'broader':57 'call':4,20 'caller':108,230 'challeng':223 'confirm':216 'connect':194 'contact':236 'data':42,70,75 'decim':134 'doc/pricing/api':189 'document':180,228 'dozen':61 'empti':187 'endpoint':34,68,166,210,214 'equal':136 'essenti':186 'exact':199 'expect':242 'experi':234 'finance/web3':74 'format':205,246 'handl':102 'header':114 'howev':179 'id':45 'infer':73 'infrastructur':77 'inlin':103 'input':243 'instant':177 'key':170 'label':92 'lack':226 'land':183 'limit':173 'live':217 'log':6,22,41,44,209 'lowpaymentfee' 'lowpaymentfee.com':36 'maximum':123 'mean':229 'minimum':175 'model':159 'need':232 'network':84 'no-api-key' 'offer':60 'output':245 'page':184,190 '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 'post':98 'premium':93 'premium API access' 'price':158 'prompt':196 'proper':221 'protocol':51,107 'provid':37,238 'rate':172 'request':14,30,66,99,139,163,200 'requir':125 'resourc':89 'respons':204 'return':219 'schema':202 'second':150 'sent':143 'settl':80 'show':192 'sign':117 'simpl':157 'span':69 'specif':43,88 'timeout':151 'understand':240 'unit':130 'unknown':212 'usdc':16,32,86,118,132 'usdc-settlement' 'use':85 'util':78 'via':10,26,47,104 'wallet':195 'window':152 'x':112 'x-payment':111 'x402':11,27,49,106 'x402 API' 'x402-payment'","prices":[{"id":"61dbb3d5-9880-4217-b171-a98b2975bf5f","listingId":"90e09d75-67a1-4299-95d5-15e3664e7a71","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/64","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:09.833Z"}],"sources":[{"listingId":"90e09d75-67a1-4299-95d5-15e3664e7a71","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/64","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:09.833Z","lastSeenAt":"2026-04-27T05:04:23.683Z"}],"details":{"listingId":"90e09d75-67a1-4299-95d5-15e3664e7a71","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/64 \\\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 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/64"},{"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 contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/64"},{"claim":"Payment recipient address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/64"}],"useCases":["Retrieving audit log records on a per-request payment basis without needing an API key or subscription","Integrating pay-per-call audit data into agent workflows that can settle USDC on Base","Accessing infrastructure logging data with zero upfront commitment"],"bestFor":["Agents or developers who want keyless, pay-as-you-go API access","Use cases requiring audit log retrieval with crypto-native payment","Scenarios where avoiding API key management and rate limits is valuable"],"notFor":["Users who need detailed API documentation or well-defined schemas before integrating","High-volume audit log consumers who would benefit from bulk pricing or subscriptions","Users without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.117Z"},"updatedAt":"2026-04-27T05:04:23.683Z"}}