{"id":"ae38fa76-5048-416c-b80f-b1e5b879864c","shortId":"CKJmjQ","kind":"x402","title":"Pay-per-call audit log access on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call audit log access 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 99) via the x402 payment protocol. It is part of a broader platform offering numerous pay-per-request APIs 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/99` 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, subscriptions, or rate limits are advertised — access is purely gated by micropayment.\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, and no explanation of what the audit log endpoint actually returns or what parameters it accepts. The endpoint is confirmed live (402 challenge captured), but the lack of documentation makes it difficult to know what data to expect or how to structure a meaningful request body.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","audit-log-access","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","micropayment API","pay-per-call API","USDC API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","The specific purpose and data returned by /api/v1/audit/logs/99 is undocumented","This endpoint path references a specific log ID (99); it is unclear if other IDs are available or what they represent"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/99","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/99","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 it exists and accepts payment. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no explanation of what 'audit/logs/99' actually returns. The listing is effectively a stub with confirmed 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'/request':17,34 '0.02':16,33,81,130 '000':126 '0x1a2b':140 '20':125 '402':213 '6':134 '85f3':141 '99':48 'Base network API' 'USDC API' 'accept':96,207 'access':7,24,40,153 'actual':201 'addit':182 'address':139 'advertis':152 'ai/ml':71 'analyt':70 'api':67,145,169 'attach':111 'audit':5,22,42,198 'audit log API' 'audit-log-access' 'base':9,26,90,127,143 'base-network' 'bodi':237 'broader':59 'call':4,21 'caller':110 'captur':215 'challeng':214 'confirm':211 'connect':177 'contain':117 'content':183 'data':44,69,74,227 'decim':135 'difficult':223 'doc':167 'document':159,220 'endpoint':36,200,209 'expect':229 'explan':194 'extrem':164 'finance/web3':73 'gate':156 'given':131 'handl':104 'header':116 'i.e':129 'id':47 'infer':72 'infrastructur':76 'inlin':105 'json':101 'key':146 'know':225 'lack':218 'limit':150 'live':212 'log':6,23,43,46,199 'lowpaymentfee' 'lowpaymentfee.com':38 'make':221 'meaning':235 'micropay':158 'micropayment API' 'network':91 'no-api-key' 'numer':62 'offer':61 'openapi':187 'page':172 'paramet':205 'part':56 'pay':2,19,64 'pay-per-cal':1,18 'pay-per-call API' 'pay-per-request':63 'paye':138 'payment':52,102,115,121 'per':3,20,65,82 'platform':60 'post':97 'price':79,168 'prompt':179 'protocol':53,109 'provid':39 'pure':155 'rate':149 'readm':171 'render':174 'request':66,83,98,236 'request/response':190 'resourc':94 'return':100,202 'schema':191 'settl':12,29,85 'sign':119 'site':162 'span':68 'spec':188 'specif':45,93 'structur':233 'subscript':147 'thin':165 'unit':128 'usdc':14,31,87,120,132 'usdc-micropayment' 'util':77 'via':10,27,49,106 'wallet':178 'x':114 'x-payment':113 'x402':11,28,51,108 'x402 API' 'x402-payment'","prices":[{"id":"0f7122bb-f905-4cc1-ae00-4064c09e0cad","listingId":"ae38fa76-5048-416c-b80f-b1e5b879864c","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/99","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:14.690Z"}],"sources":[{"listingId":"ae38fa76-5048-416c-b80f-b1e5b879864c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/99","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:14.690Z","lastSeenAt":"2026-04-27T03:32:53.163Z"}],"details":{"listingId":"ae38fa76-5048-416c-b80f-b1e5b879864c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/99 \\\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":"Endpoint returns HTTP 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/99"},{"claim":"maxAmountRequired is 20000 base units of USDC (asset 0x8335…2913), equaling $0.02","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/99"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving audit log entries via micropayment without requiring an API key","Programmatic access to audit data from AI agents using x402 payment flow","Demonstrating x402 protocol integration for pay-per-request services"],"bestFor":["Developers experimenting with x402 micropayment protocol","Agents needing keyless, pay-per-call access to audit data","Low-volume consumers who want no subscription overhead"],"notFor":["Users needing detailed API documentation or response schemas before integrating","High-volume audit log consumers who need bulk pricing or streaming access","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:27.874Z"},"updatedAt":"2026-04-27T03:32:53.163Z"}}