{"id":"5d191d51-d47c-4396-912a-cea157358e66","shortId":"SrWDZM","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 76) 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, settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/76` 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 payment of up to 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals) to the payee address `0x1A2B...85F3`. The x402 challenge was confirmed live, returning a proper 402 response with version 1 of the protocol and a 300-second payment timeout.\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 payload contains or what parameters the POST body accepts. The endpoint appears functional based on the 402 challenge, but the lack of documentation makes it difficult to know what data is returned or how to structure a request body.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-log-access","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit logs API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-call data","lowpaymentfee","premium API access"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content","No OpenAPI or request/response schema provided; request body format is unknown","The specific resource '/api/v1/audit/logs/76' is not listed on the site's landing page among its advertised endpoints — it may be an internal or unlisted route","Audit log contents and structure are completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/76","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/76","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and confirms the endpoint accepts payment, but there is zero documentation on request format, response schema, or what 'audit logs' actually contain. No OpenAPI spec, no examples, and all doc pages are empty. This is effectively a stub 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'0.02':12,28,81,133 '000':127 '0x1a2b':143 '1':158 '20':126 '300':164 '402':154,225 '6':137 '76':46 '85f3':144 'Base network API' 'USDC micropayment API' 'accept':101,217 'access':7,23,38,99 'address':142 'ai/ml':71 'analyt':70 'api':66,98,178 'appear':220 'attach':113 'audit':5,21,40,207 'audit logs API' 'audit-log-access' 'base':9,25,89,128,222 'base-network' 'bodi':216,247 'broader':57 'call':4,20,83 'caller':112 'challeng':147,226 'confirm':149 'connect':186 'contain':119,210 'content':192 'data':42,69,74,238 'decim':138 'descript':203 'difficult':234 'doc':176 'document':168,231 'dozen':60 'endpoint':34,67,219 'exampl':200 'extrem':173 'finance/web3':73 'function':221 'handl':106 'header':118 'i.e':132 'id':45 'infer':72 'infrastructur':76 'inlin':107 'know':236 'label':96 'lack':229 'live':150 'log':6,22,41,44,208 'lowpaymentfee' 'lowpaymentfee.com':36 'make':232 'network':90 'no-api-key' 'offer':59 'openapi':196 'page':181 'paramet':213 'part':54 'pay':2,18,63 'pay-per-cal':1,17 'pay-per-call data' 'pay-per-request':62 'paye':141 'payload':209 'payment':50,104,117,122,166 'per':3,13,19,29,64,82 'platform':58 'post':102,215 'premium':97 'premium API access' 'price':79,177 'prompt':188 'proper':153 'protocol':51,111,161 'provid':37 'readm':180 'render':183 'request':14,30,65,103,246 'request/response':199 'resourc':93 'respons':155 'return':151,240 'schema':197 'second':165 'settl':84 'sign':121 'sinc':134 'site':171 'span':68 'specif':43,92 'structur':244 'substant':191 'thin':174 'timeout':167 'unit':129 'usdc':16,32,86,131,135 'usdc-settlement' 'use':136 'util':77 'version':157 'via':10,26,47,108 'wallet':187 'x':116 'x-payment':115 'x402':11,27,49,110,146 'x402 paid endpoint' 'x402-payment'","prices":[{"id":"dc1f28bf-96d0-404a-8d2d-6254a9de4f87","listingId":"5d191d51-d47c-4396-912a-cea157358e66","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/76","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:09.207Z"}],"sources":[{"listingId":"5d191d51-d47c-4396-912a-cea157358e66","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/76","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:09.207Z","lastSeenAt":"2026-04-27T05:04:23.637Z"}],"details":{"listingId":"5d191d51-d47c-4396-912a-cea157358e66","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/76 \\\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 valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/76"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/76"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving audit log records on a per-request payment basis","Integrating pay-per-call data access into agent workflows without API keys","Accessing infrastructure services settled in USDC on Base"],"bestFor":["Agents or developers who want keyless, pay-per-call API access","Users already holding USDC on the Base network","Scenarios requiring audit trail or log data without subscription commitments"],"notFor":["Users needing detailed API documentation or request/response schemas before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible wallet or USDC holdings"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.238Z"},"updatedAt":"2026-04-27T05:04:23.637Z"}}