{"id":"74946914-e128-44aa-9454-56805f07fc5a","shortId":"4LawkH","kind":"x402","title":"x402-gated audit-log endpoint on Base, pay-per-request with USDC at $0.02/call.","tagline":"x402-gated audit-log endpoint on Base, pay-per-request with USDC at $0.02/call.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (resource ID 41) via the x402 payment protocol. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure utility APIs, all gated behind x402 micropayments settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/audit/logs/41` is described as \"Premium API Access\" and accepts POST requests. Payment is handled inline via the X-PAYMENT header using the x402 \"exact\" scheme. The maximum amount required is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 USD (USDC uses 6 decimals). The payment timeout is 300 seconds. No API keys or rate limits are advertised; access is granted purely through per-request payment.\n\nDocumentation 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 spec, no request/response schema beyond the x402 challenge's outputSchema stub, and no description of what the audit log data actually contains. The endpoint is confirmed live (returns a valid 402 challenge), but the lack of documentation makes it difficult to know what data is returned or what POST body is expected.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","audit-logs","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","micropayment API","USDC pay-per-call","Base network API","lowpaymentfee","premium API access"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No OpenAPI or request/response schema provided; unknown what POST body is expected or what data is returned","The specific resource '/api/v1/audit/logs/41' is not listed on the provider's homepage among available APIs, raising questions about its intended use","Audit log content and structure are completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/41","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/41","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 payment details. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no description of what audit log data is actually returned. This is effectively a stub 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'/call':18,36 '0.02':17,35,130 '000':119 '0x8335':124 '20':118 '2913':125 '300':140 '402':215 '41':49 '6':134 'Base network API' 'USDC pay-per-call' 'accept':95 'access':42,93,150 'actual':205 'advertis':149 'ai/ml':65 'amount':115 'analyt':64 'api':71,92,143,166 'audit':5,23,44,202 'audit log API' 'audit-log':4,22 'audit-logs' 'base':9,27,82,120,127 'base-network' 'behind':74 'beyond':189 'bodi':234 'broader':60 'challeng':192,216 'confirm':210 'connect':174 'contain':206 'content':180 'data':46,63,204,228 'decim':135 'describ':89 'descript':198 'difficult':224 'doc':164 'document':159,221 'endpoint':7,25,38,86,208 'equal':129 'exact':111 'expect':236 'extrem':161 'finance/web3':67 'gate':3,21,73 'grant':152 'handl':100 'header':107 'id':48 'infer':66 'infrastructur':69 'inlin':101 'key':144 'know':226 'lack':219 'limit':147 'live':211 'log':6,24,45,203 'lowpaymentfee' 'lowpaymentfee.com':40 'make':222 'maximum':114 'micropay':76 'micropayment API' 'network':83 'no-api-key' 'offer':62 'openapi':184 'outputschema':194 'page':169 'part':57 'pay':11,29 'pay-per-request':10,28 'payment':53,98,106,137,158 'per':12,30,156 'per-request':155 'platform':61 'post':96,233 'premium':91 'premium API access' 'price':165 'prompt':176 'protocol':54 'provid':41 'pure':153 'rate':146 'readm':168 'render':171 'request':13,31,97,157 'request/response':187 'requir':116 'resourc':47 'return':212,230 'schema':188 'scheme':112 'second':141 'settl':77 'spec':185 'specif':85 'stub':195 'substant':179 'thin':162 'timeout':138 'unit':121 'usd':131 'usdc':15,33,79,123,132 'usdc-micropayment' 'use':108,133 'util':70 'valid':214 'via':50,102 'wallet':175 'x':105 'x-payment':104 'x402':2,20,52,75,110,191 'x402 API' 'x402-gated':1,19 'x402-payment'","prices":[{"id":"1cde5717-15cf-42dd-a55d-0e410f9b31c0","listingId":"74946914-e128-44aa-9454-56805f07fc5a","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/41","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:58.361Z"}],"sources":[{"listingId":"74946914-e128-44aa-9454-56805f07fc5a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/41","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:58.361Z","lastSeenAt":"2026-04-27T07:04:40.708Z"}],"details":{"listingId":"74946914-e128-44aa-9454-56805f07fc5a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/41 \\\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 valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/41"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 6 decimals, so 20000 base units = $0.02","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving audit log records via a single micropayment without needing an API key","Integrating pay-per-request audit data into automated agent workflows","Demonstrating x402 protocol payment flows on Base"],"bestFor":["Agents or developers wanting keyless, pay-per-call access to audit data","x402 protocol experimentation and integration testing","Low-volume, on-demand audit log retrieval"],"notFor":["High-volume bulk audit log exports (no documented batch endpoint)","Users who need detailed API documentation or response schema before integrating","Non-crypto users who cannot pay in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.729Z"},"updatedAt":"2026-04-27T07:04:40.708Z"}}