{"id":"4e65d8d6-322e-4ef1-9df7-2519637b52bc","shortId":"SWVHFM","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 73) via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). Payment is made via the x402 \"exact\" scheme to the specified wallet address, with no API keys or rate limits required.\n\nThe broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and crypto data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request and settle on the Base network using USDC. However, the specific endpoint being listed here — `/api/v1/audit/logs/73` — is not documented on the site's landing page among the advertised API categories, so its exact response schema and data content are unclear.\n\nThe site's documentation, pricing, and API pages all appear to be stub pages showing only a \"Connect wallet\" prompt, offering no additional technical detail about request/response formats or endpoint behavior. Without an OpenAPI spec, example responses, or detailed docs, the actual output of this audit logs endpoint remains uncertain.","tags":[],"capabilities":["x402-payment","usdc-base","audit-logs","pay-per-call","no-api-key"],"categories":["data","infrastructure"],"synonyms":["audit log API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-request API","lowpaymentfee"],"warnings":["The /api/v1/audit/logs/73 path is not listed among the provider's advertised APIs on the landing page — its purpose and output are unverified.","All documentation, pricing, and API pages beyond the landing page are stubs showing only 'Connect wallet'.","No OpenAPI spec, request schema, or response schema is available.","No example responses exist to confirm what data this endpoint actually returns."],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/73","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/73","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 confirmed) and pricing is clear ($0.02 USDC on Base). However, this specific audit logs endpoint is not listed in the site's own API catalog, there is no OpenAPI spec, no example request/response, and all doc pages are stubs. The actual data returned is 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'/request':13,28 '0.02':12,27,72,150 '000':74 '20':73 '402':57 '6':80 '73':44 'Base network API' 'USDC micropayment API' 'access':7,22,36 'actual':234 'addit':215 'address':94 'advertis':107,180 'ai/ml':119 'among':178 'analysi':122 'analyt':118 'api':97,115,181,199 'appear':202 'audit':5,20,38,238 'audit log API' 'audit-logs' 'base':9,24,65,75,157 'behavior':223 'broader':104 'call':4,19,114 'categori':182 'challeng':58 'classif':124 'connect':210 'content':190 'convers':143 'crypto':128 'data':40,117,129,189 'decim':81 'detail':217,231 'doc':232 'document':171,196 'embed':125 'endpoint':32,51,146,164,222,240 'estim':137 'exact':88,185 'exampl':228 'exchang':132 'feed':131 'financ':126 'format':220 'gas':136 'generat':144 'geocod':141 'howev':161 'id':43 'infer':120 'infrastructur':139 'key':98 'land':176 'limit':101 'list':148,166 'live':53 'log':6,21,39,42,239 'lowpaymentfee' 'lowpaymentfee.com':34,105 'made':84 'network':66,158 'no-api-key' 'offer':213 'openapi':226 'output':235 'page':177,200,206 'pay':2,17,112 'pay-per-cal':1,16,111 'pay-per-call' 'pay-per-request API' 'payment':48,60,82 'per':3,18,69,113,151 'platform':106 'price':68,130,197 'prompt':212 'protocol':49 'provid':35 'quot':135 'rate':100,133 'remain':241 'request':70,152 'request/response':219 'requir':59,102 'respons':186,229 'return':55 'schema':187 'scheme':89 'sentiment':121 'settl':154 'show':207 'site':174,194 'span':116 'spec':227 'specif':41,163 'specifi':92 'stub':205 'suit':109 'summar':123 'technic':216 'token':134 'uncertain':242 'unclear':192 'unit':76 'usdc':15,30,62,78,160 'usdc-base' 'use':159 'util':140 'valid':142 'via':10,25,45,85 'wallet':93,211 'without':224 'x402':11,26,47,87 'x402 paid endpoint' 'x402-payment'","prices":[{"id":"83a23d7c-0677-46e6-9132-d445685a4b20","listingId":"4e65d8d6-322e-4ef1-9df7-2519637b52bc","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/73","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:06.816Z"}],"sources":[{"listingId":"4e65d8d6-322e-4ef1-9df7-2519637b52bc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/73","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:06.816Z","lastSeenAt":"2026-04-27T05:04:23.541Z"}],"details":{"listingId":"4e65d8d6-322e-4ef1-9df7-2519637b52bc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/73 \\\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 402 challenge requiring USDC payment on Base network with maxAmountRequired of 20000 base units.","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/73"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network.","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/73"},{"claim":"Documentation, pricing, and API pages show only a 'Connect wallet' prompt with no additional content.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving audit log entries via programmatic pay-per-call access","Integrating x402 payment-gated data retrieval into agent workflows","Accessing structured log data without managing API keys or subscriptions"],"bestFor":["Agents or services that need on-demand audit log data with no subscription commitment","Developers experimenting with x402 payment protocol integrations","Scenarios requiring keyless, pay-as-you-go API access on Base"],"notFor":["High-volume bulk log retrieval where per-call pricing would be expensive","Use cases requiring detailed API documentation or guaranteed SLAs","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.363Z"},"updatedAt":"2026-04-27T05:04:23.541Z"}}