{"id":"21649aeb-c3d3-40db-b227-230fa4940662","shortId":"TSK9uM","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 entry #27) 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/27` 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 (0x8335…2913) and a maxAmountRequired of 20000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised; access is gated purely by the x402 micropayment. The payment timeout is 300 seconds.\n\nDocumentation is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what the audit log data actually contains or what fields the POST body expects. The endpoint is live (returns a valid 402 challenge), but the lack of documentation makes it difficult to use without experimentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-request","no-api-key","micropayment"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","micropayment API","USDC pay-per-call","Base network API","lowpaymentfee","premium API access","402 payment endpoint"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or schema describing request body or response format for this endpoint.","The purpose and contents of 'audit/logs/27' are unclear — it is unknown what data this returns.","This specific endpoint (/api/v1/audit/logs/27) is not listed on the provider's homepage among their advertised APIs, raising questions about its intended use."],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/27","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/27","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 challenge, but documentation is essentially nonexistent — no OpenAPI spec, no request/response examples, no description of what audit log data is returned or what POST body is expected. The listing is effectively a 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'/request':17,34 '0.02':16,33,83,134 '0x8335':123 '20000':129 '27':48 '2913':124 '300':159 '402':114,216 '402 payment endpoint' '6':137 'Base network API' 'USDC pay-per-call' 'accept':104 'access':7,24,40,102,147 'actual':200 'address':120 'advertis':146 'ai/ml':73 'analyt':72 'api':68,101,140,168 'asset':119 'audit':5,22,42,197 'audit log API' 'audit-logs' 'base':9,26,92,122,130 'base-network' 'bodi':207 'broader':59 'call':4,21 'caller':111 'challeng':115,217 'connect':176 'contain':116,201 'content':182 'data':44,71,76,199 'decim':138 'descript':193 'difficult':225 'doc':166 'document':161,222 'dozen':62 'endpoint':36,69,210 'entri':47 'equal':133 'exampl':190 'expect':208 'experiment':229 'extrem':163 'field':204 'finance/web3':75 'gate':149 'handl':109 'infer':74 'infrastructur':78 'inlin':110 'key':141 'label':99 'lack':220 'limit':144 'live':212 'log':6,23,43,46,198 'lowpaymentfee' 'lowpaymentfee.com':38 'make':223 'maxamountrequir':127 'micropay':154 'micropayment' 'micropayment API' 'network':93 'no-api-key' 'offer':61 'openapi':186 'page':171 'part':56 'pay':2,19,65 'pay-per-cal':1,18 'pay-per-request':64 'payment':52,107,156 'per':3,20,66,84 'platform':60 'post':105,206 'premium':100 'premium API access' 'price':81,167 'prompt':178 'protocol':53 'provid':39 'pure':150 'rate':143 'readm':170 'receiv':112 'render':173 'request':67,85,106 'request/response':189 'resourc':96 'return':213 'schema':187 'second':160 'settl':12,29,87 'span':70 'spars':164 'specif':45,95 'timeout':157 'unit':131 'usdc':14,31,89,118,135 'usdc-settlement' 'use':136,227 'util':79 'valid':215 'via':10,27,49 'wallet':177 'without':228 'x402':11,28,51,153 'x402 API' 'x402-payment'","prices":[{"id":"206b01da-1dd8-4093-974a-5563f91465df","listingId":"21649aeb-c3d3-40db-b227-230fa4940662","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/27","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:55.280Z"}],"sources":[{"listingId":"21649aeb-c3d3-40db-b227-230fa4940662","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/27","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:55.280Z","lastSeenAt":"2026-04-27T07:04:40.541Z"}],"details":{"listingId":"21649aeb-c3d3-40db-b227-230fa4940662","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/27\n# Returns 402 with x402 challenge; attach X-PAYMENT header with signed USDC payment on Base to access.","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 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/27"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/27"}],"useCases":["Retrieving audit log entries on a per-request payment basis","Programmatic access to audit data without API key management","Agent-driven data retrieval with inline USDC micropayments"],"bestFor":["Developers wanting keyless, pay-per-call audit log access","AI agents that can settle x402 payments in USDC on Base","Users who prefer no subscription commitments for occasional data access"],"notFor":["Users needing detailed API documentation or request/response schemas before integration","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.948Z"},"updatedAt":"2026-04-27T07:04:40.541Z"}}