{"id":"88d5a2ea-a6e6-4d59-9b53-a21b506fdae7","shortId":"mgKNzS","kind":"x402","title":"Pay-per-call audit log retrieval on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call audit log retrieval 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 entry #25) 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 request and settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/25` is labeled \"Premium API Access\" and accepts POST requests. Payment is handled inline: callers receive a 402 challenge containing the USDC asset address on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) and a payTo wallet. The maxAmountRequired is 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys are needed; authentication is replaced by the x402 micropayment header. The platform advertises no rate limits and instant access.\n\nDocumentation is extremely thin — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no description of what the audit log data actually contains. The endpoint is live (402 challenge confirmed), but the lack of documentation makes it difficult to know what payload to send or what response to expect.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-log-retrieval","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit logs API","pay-per-call API","x402 micropayment endpoint","USDC API payment","Base network API","lowpaymentfee","premium API access"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no useful content","The specific meaning of 'audit/logs/25' is not documented; it is unclear what data is returned","The endpoint path references a specific log ID (25), which may not generalize to other IDs without further info"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/25","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/25","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 pricing and network. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and the specific purpose of 'audit/logs/25' is unexplained. This is effectively a stub 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'/request':17,34 '0.02':16,33,83,141 '000':132 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':123 '20':131 '25':48 '402':114,209 '6':137 'Base network API' 'USDC API payment' 'accept':104 'access':40,102,163 'actual':203 'address':120 'advertis':157 'ai/ml':73 'analyt':72 'api':68,101,143,171 'asset':119 'audit':5,22,42,200 'audit logs API' 'audit-log-retrieval' 'authent':147 'base':9,26,92,122,133 'base-network' 'broader':59 'call':4,21 'caller':111 'challeng':115,210 'confirm':211 'connect':179 'contain':116,204 'content':185 'data':44,71,76,202 'decim':138 'descript':196 'difficult':219 'doc':169 'document':164,216 'dozen':62 'endpoint':36,69,206 'entri':47 'equal':140 'expect':230 'extrem':166 'finance/web3':75 'handl':109 'header':154 'infer':74 'infrastructur':78 'inlin':110 'instant':162 'key':144 'know':221 'label':99 'lack':214 'limit':160 'live':208 'log':6,23,43,46,201 'lowpaymentfee' 'lowpaymentfee.com':38 'make':217 'maxamountrequir':129 'micropay':153 'need':146 'network':93 'no-api-key' 'offer':61 'openapi':189 'page':174 'part':56 'pay':2,19,65 'pay-per-cal':1,18 'pay-per-call API' 'pay-per-request':64 'payload':223 'payment':52,107 'payto':126 'per':3,20,66,84 'platform':60,156 'post':105 'premium':100 'premium API access' 'price':81,170 'prompt':181 'protocol':53 'provid':39 'rate':159 'readm':173 'receiv':112 'render':176 'replac':149 'request':67,85,106 'request/response':192 'resourc':96 'respons':228 'retriev':7,24 'schema':193 'send':225 'settl':12,29,87 'span':70 'spec':190 'specif':45,95 'thin':167 'unit':134 'usdc':14,31,89,118,136 'usdc-settlement' 'util':79 'via':10,27,49 'wallet':127,180 'x402':11,28,51,152 'x402 micropayment endpoint' 'x402-payment'","prices":[{"id":"53d71dc4-dc03-4280-80e4-accbdaa65fe2","listingId":"88d5a2ea-a6e6-4d59-9b53-a21b506fdae7","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/25","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:52.861Z"}],"sources":[{"listingId":"88d5a2ea-a6e6-4d59-9b53-a21b506fdae7","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/25","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:52.861Z","lastSeenAt":"2026-04-27T09:33:33.605Z"}],"details":{"listingId":"88d5a2ea-a6e6-4d59-9b53-a21b506fdae7","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/25 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/25"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/25"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving audit log entries on a per-request payment basis without needing an API key","Integrating pay-per-call audit data into agent workflows that support x402","Accessing infrastructure data endpoints settled in USDC on Base L2"],"bestFor":["Agents or applications that support x402 payment protocol","Users who want keyless, pay-as-you-go API access","Developers building on Base who already hold USDC"],"notFor":["Users who need detailed API documentation or response schemas before integrating","High-volume consumers who need bulk pricing or subscription plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.987Z"},"updatedAt":"2026-04-27T09:33:33.605Z"}}