{"id":"edca70ca-3c8b-4454-aef2-af3ddd44011d","shortId":"RwKnMd","kind":"x402","title":"Pay-per-call audit log endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call audit log endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 80) via an x402 payment challenge. 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 request and settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/80` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02 given USDC's 6 decimals) to the payee address `0x1A2B...85F3` on Base. No API keys, rate limits, or upfront commitments are required — access is purely transactional.\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 documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual shape of the audit log data returned after payment is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-request","no-api-key","json-response"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","audit trail endpoint"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No OpenAPI or output schema provided; the shape of the audit log response is unknown","The specific purpose of 'audit/logs/80' (what log ID 80 represents) is undocumented","The broader platform lists many endpoints but none have documented request/response formats"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/80","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual data returned by this audit log endpoint is completely unknown, making this effectively a stub 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'/request':17,34 '0.02':16,33,83,132 '000':128 '0x1a2b':142 '20':127 '402':207 '6':136 '80':48 '85f3':143 'Base network API' 'USDC micropayment API' 'accept':98 'access':40,156 'actual':211 'addit':183 'address':141 'ai/ml':73 'analyt':72 'api':68,147,170 'attach':113 'audit':5,22,42,215 'audit log API' 'audit trail endpoint' 'audit-logs' 'avail':198 'base':9,26,92,129,145 'base-network' 'broader':59 'call':4,21 'caller':112 'challeng':53,208 'commit':153 'confirm':202 'connect':178 'contain':119 'content':184 'data':44,71,76,217 'decim':137 'doc':168 'document':160,193 'dozen':62 'endpoint':7,24,36,69,200 'exampl':196 'extrem':165 'finance/web3':75 'given':133 'handl':106 'header':118 'i.e':131 'id':47 'infer':74 'infrastructur':78 'inlin':107 'json':103 'json-response' 'key':148 'limit':150 'live':203 'log':6,23,43,46,216 'lowpaymentfee' 'lowpaymentfee.com':38 'network':93 'no-api-key' 'offer':61 'openapi':188 'page':173 'part':56 'pay':2,19,65 'pay-per-cal':1,18 'pay-per-call API' 'pay-per-request':64 'paye':140 'payload':197 'payment':52,104,117,123,220 'per':3,20,66,84 'platform':60 'post':99 'price':81,169 'prompt':180 'proper':206 'protocol':111 'provid':39 'pure':158 'rate':149 'readm':172 'render':175 'request':67,85,100 'request/response':191 'requir':155 'resourc':96 'return':102,204,218 'schema':192 'settl':12,29,87 'shape':212 'sign':121 'site':163 'span':70 'spec':189 'specif':45,95 'thin':166 'transact':159 'unit':130 'unknown':222 'upfront':152 'usdc':14,31,89,122,134 'usdc-settlement' 'util':79 'via':10,27,49,108 'wallet':179 'x':116 'x-payment':115 'x402':11,28,51,110 'x402 API' 'x402-payment'","prices":[{"id":"dee9843f-31d7-4e09-87e9-f31db868982b","listingId":"edca70ca-3c8b-4454-aef2-af3ddd44011d","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:09.824Z"}],"sources":[{"listingId":"edca70ca-3c8b-4454-aef2-af3ddd44011d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/80","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:09.824Z","lastSeenAt":"2026-04-27T05:04:23.636Z"}],"details":{"listingId":"edca70ca-3c8b-4454-aef2-af3ddd44011d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/80 \\\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 402 challenge requesting up to 20,000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/80"},{"claim":"All endpoints 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 USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/80"}],"useCases":["Retrieving audit log entries on a per-request payment basis without needing an API key","Integrating pay-as-you-go audit data into agent workflows that support x402","Accessing infrastructure logging data settled via crypto micropayments"],"bestFor":["Agents or applications that support x402 payment protocol","Users who want keyless, commitment-free access to audit data","Crypto-native workflows on the Base L2 network"],"notFor":["Users needing detailed API documentation or guaranteed response schemas before integrating","High-volume audit log consumers who need bulk/subscription pricing","Users without USDC on Base or x402-compatible payment infrastructure"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.238Z"},"updatedAt":"2026-04-27T05:04:23.636Z"}}