{"id":"020c85b9-9605-4e45-a466-a6d52e7a8c16","shortId":"xxSxjP","kind":"x402","title":"Pay-per-call audit log access on Base via x402 — $0.02 per request in USDC.","tagline":"Pay-per-call audit log access on Base via x402 — $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to audit log data (specifically log entry 29) through the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals).\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access; callers simply attach an x402 payment header to each request.\n\nDocumentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific purpose and schema of the audit logs endpoint is not documented beyond its URL path and the generic \"Premium API Access\" label. Treat this as an exploratory or early-stage offering.","tags":[],"capabilities":["x402-payment","pay-per-call","audit-logs","usdc-settlement","base-network","json-api"],"categories":["data","infrastructure"],"synonyms":["audit log API","pay-per-request API","x402 endpoint","USDC micropayment API","lowpaymentfee","Base network API","audit trail"],"warnings":["No request or response schema documented — callers must discover behavior experimentally","All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no content","The specific meaning of 'audit/logs/29' (what log entry 29 represents) is undocumented","No OpenAPI or ai-plugin manifest available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/29","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/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what 'audit/logs/29' actually returns. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet-connect 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'/docs':148 '/pricing':150 '/readme':152 '0.02':12,28,75,117 '000':79 '0x8335':69 '20':78 '29':46 '2913':70 '6':83 'Base network API' 'USDC micropayment API' 'accept':53 'access':7,23,38,131,201 'advertis':122 'ai/ml':107 'analyt':106 'api':103,124,200 'attach':134 'audit':5,21,40,186 'audit log API' 'audit trail' 'audit-logs' 'avail':178 'base':9,25,64,80 'base-network' 'beyond':192 'broader':91 'call':4,20,102 'caller':132 'connect':158 'content':164 'contract':68 'cost':73 'crawl':147 'data':42,105,110 'decim':84 'document':142,173,191 'earli':210 'early-stag':209 'endpoint':34,86,188 'entri':45 'exampl':176 'exploratori':207 'extrem':144 'finance/web3':109 'generic':198 'header':138 'infer':108 'infrastructur':112 'instant':130 'json':58 'json-api' 'key':125 'label':202 'limit':128 'log':6,22,41,44,187 'lowpaymentfee' 'lowpaymentfee.com':36,93 'network':65 'offer':95,212 'openapi':168 'page':153 'part':88 'path':195 'pay':2,18,100 'pay-per-cal':1,17,99 'pay-per-call' 'pay-per-request API' 'payload':177 'payment':50,59,137 'per':3,13,19,29,76,101,118 'platform':92,121 'post':54 'premium':199 'price':115 'prompt':160 'protocol':51 'provid':37 'purpos':181 'rate':127 'request':14,30,55,77,119,141 'request/response':171 'return':57,155 'schema':172,183 'settl':61 'simpli':133 'span':104 'spars':145 'spec':169 'specif':43,180 'stage':211 'substant':163 'treat':203 'unit':81 'url':194 'usdc':16,32,67 'usdc-settlement' 'use':66 'util':113 'varieti':97 'via':10,26 'wallet':159 'x402':11,27,49,136 'x402 endpoint' 'x402-payment'","prices":[{"id":"a6a699ce-0dc3-4c8a-a41b-3ae6b7f784c4","listingId":"020c85b9-9605-4e45-a466-a6d52e7a8c16","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/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:58.958Z"}],"sources":[{"listingId":"020c85b9-9605-4e45-a466-a6d52e7a8c16","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/29","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:58.958Z","lastSeenAt":"2026-04-27T07:04:40.734Z"}],"details":{"listingId":"020c85b9-9605-4e45-a466-a6d52e7a8c16","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/29 \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/29"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/29"}],"useCases":["Retrieving audit log entries on a per-call payment basis without API keys","Integrating pay-per-use audit data into agent workflows via x402","Accessing structured log data with crypto micropayments on Base"],"bestFor":["Agents or services that need on-demand audit log access without subscriptions","Developers experimenting with x402 pay-per-call patterns","Use cases requiring keyless, permissionless API access"],"notFor":["Production systems requiring documented request/response schemas","High-volume audit log ingestion where per-call pricing is inefficient","Users who need fiat-only payment options"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.728Z"},"updatedAt":"2026-04-27T07:04:40.734Z"}}