{"id":"d8704f46-d55d-4256-a2bd-efd9185648cc","shortId":"PNGpGX","kind":"x402","title":"Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 22) 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, settled in USDC on the Base network.\n\nThe specific resource `/api/v1/audit/logs/22` is labeled \"Premium API Access\" and accepts POST requests. Payment is handled inline via the x402 protocol: the endpoint returns a 402 challenge with payment details, and the caller includes a signed USDC payment in the `X-PAYMENT` header. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a timeout of 300 seconds.\n\nThe platform advertises no API keys, no rate limits, and instant access. Documentation pages (/docs, /pricing, /api, /README) all appear to require wallet connection and contain no substantive content in the crawl. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for what the audit log endpoint actually returns. The endpoint is live (402 challenge confirmed), but the lack of documentation about the response format and the nature of the audit log data is a significant gap.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-request","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access"],"warnings":["No OpenAPI or schema documentation available for this endpoint","All doc pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no substantive content","The specific data returned by /api/v1/audit/logs/22 is undocumented — 'Premium API Access' is a generic label","No request body schema or response schema is provided"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/22","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI schema, no request/response examples, and all documentation pages are gated behind wallet connection with no crawlable content. The purpose and output of the audit log endpoint are unclear beyond the generic label 'Premium API 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'/api/v1/audit/logs/22':92 '/docs':178 '/pricing':179 '/readme':181 '/request':13,28 '0.02':12,27,79,148 '000':139 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':155 '20':138 '22':44 '300':162 '402':114,221 '6':144 'Base network API' 'USDC micropayment API' 'accept':99 'access':7,22,36,97,175 'actual':215 'address':154 'advertis':166 'ai/ml':69 'amount':135 'analyt':68 'api':64,96,168 'appear':183 'audit':5,20,38,212,238 'audit log API' 'audit-logs' 'avail':208 'base':9,24,87,140,157 'base-network' 'broader':55 'call':4,19 'caller':121 'challeng':115,222 'confirm':223 'connect':187 'contain':189 'content':192 'crawl':195 'data':40,67,72,240 'decim':145 'detail':118,206 'document':176,207,228 'dozen':58 'endpoint':32,65,111,214,218 'equal':147 'exampl':203 'finance/web3':71 'format':232 'gap':244 'handl':104 'header':132 'id':43 'includ':122 'infer':70 'infrastructur':74 'inlin':105 'instant':174 'key':169 'label':94 'lack':226 'limit':172 'live':220 'log':6,21,39,42,213,239 'lowpaymentfee' 'lowpaymentfee.com':34 'max':134 'natur':235 'network':88 'no-api-key' 'offer':57 'openapi':199 'page':177 'part':52 'pay':2,17,61 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request':60 'payment':48,102,117,126,131,150 'per':3,18,62,80 'platform':56,165 'post':100 'premium':95 'premium API access' 'price':77 'protocol':49,109 'provid':35 'rate':171 'request':63,81,101 'request/response':202 'requir':136,185 'resourc':91 'respons':231 'return':112,216 'schema':200 'second':163 'sent':152 'settl':82 'sign':124 'signific':243 'span':66 'specif':41,90 'substant':191 'timeout':160 'unit':141 'usdc':15,30,84,125,143 'usdc-settlement' 'util':75 'via':10,25,45,106 'wallet':186 'x':130 'x-payment':129 'x402':11,26,47,108 'x402 API' 'x402-payment'","prices":[{"id":"431f8427-f066-4449-bcd9-bf45871a8530","listingId":"d8704f46-d55d-4256-a2bd-efd9185648cc","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:56.503Z"}],"sources":[{"listingId":"d8704f46-d55d-4256-a2bd-efd9185648cc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/22","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:56.503Z","lastSeenAt":"2026-04-27T07:04:40.589Z"}],"details":{"listingId":"d8704f46-d55d-4256-a2bd-efd9185648cc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/22 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/22"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/22"}],"useCases":["Retrieving audit log entries on a per-request payment basis","Agent-driven data access without API key provisioning","Programmatic audit trail queries settled in USDC on Base"],"bestFor":["Agents or services that need on-demand audit log access without subscription commitments","Developers experimenting with x402 pay-per-call patterns","Low-volume consumers who prefer micropayments over monthly plans"],"notFor":["High-volume audit log consumers who need bulk/batch access","Users who need detailed API documentation or response schema guarantees before integrating","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.859Z"},"updatedAt":"2026-04-27T07:04:40.589Z"}}