{"id":"d1595e42-b79e-4f8d-9180-889651cf8ca6","shortId":"YWargh","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 55) via an x402 payment-gated API. The endpoint 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). No API keys or rate limits are required; access is granted immediately upon valid x402 payment.\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, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request. However, this specific listing covers only the `/api/v1/audit/logs/55` endpoint.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual data returned after payment is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","audit-logs","pay-per-call","no-api-key","json-response"],"categories":["data","infrastructure"],"synonyms":["audit log API","pay-per-request API","x402 API","USDC micropayment API","Base network API","lowpaymentfee","audit trail endpoint"],"warnings":["No OpenAPI spec or request/response schema available","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","The specific data returned by /api/v1/audit/logs/55 after payment is completely unknown","The '55' in the path suggests a specific resource ID but there is no documentation on valid IDs or how to discover them","Platform appears to be a generic demo or placeholder — many diverse endpoints all at identical pricing with no substantive docs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/audit/logs/55","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/55","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, but there is zero documentation on request parameters, response schema, or what 'audit/logs/55' actually returns. The docs pages are empty stubs. Without any OpenAPI spec, examples, or meaningful documentation, this is effectively a stub 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'0.02':12,28,78,149 '000':82 '0x8335':72 '20':81 '2913':73 '402':205 '55':46 '6':86 'Base network API' 'USDC micropayment API' 'accept':56 'access':7,23,38,96 'actual':210 'advertis':108 'ai/ml':120 'analysi':123 'analyt':119 'api':53,89,116,169 'audit':5,21,40 'audit log API' 'audit trail endpoint' 'audit-logs' 'avail':196 'base':9,25,67,83 'base-network' 'broader':105 'call':4,20,115 'challeng':207 'classif':125 'confirm':200 'connect':175 'contract':71 'convers':142 'cost':76 'cover':156 'crypto':129 'data':42,118,130,211 'decim':87 'detail':182 'doc':166 'document':161,191 'embed':126 'endpoint':34,55,145,160,198 'entri':45 'estim':136 'exampl':194 'exchang':133 'extrem':163 'feed':132 'financ':127 'gas':135 'gate':52 'generat':143 'geocod':140 'grant':98 'howev':152 'immedi':99 'infer':121 'infrastructur':138 'json':61 'json-response' 'key':90 'limit':93 'list':147,155 'live':201 'log':6,22,41,44 'lowpaymentfee' 'lowpaymentfee.com':36,106 'network':68 'no-api-key' 'openapi':186 'page':170 'pay':2,18,113 'pay-per-cal':1,17,112 'pay-per-call' 'pay-per-request API' 'payload':195 'payment':51,62,103,214 'payment-g':50 'per':3,13,19,29,79,114,150 'platform':107 'post':57 'price':131,167 'prompt':177 'proper':204 'provid':37 'rate':92,134 'render':172 'request':14,30,58,80,151 'request/response':189 'requir':95 'return':60,202,212 'schema':190 'sentiment':122 'settl':64 'span':117 'spars':164 'spec':187 'specif':43,154 'suit':110 'summar':124 'technic':181 'unit':84 'unknown':216 'upon':100 'usdc':16,32,70 'usdc-settlement' 'use':69 'util':139 'valid':101,141 'via':10,26,47 'wallet':176 'x402':11,27,49,102,206 'x402 API' 'x402-payment'","prices":[{"id":"9f6a25eb-ece9-476d-83a4-d719a56c3fb9","listingId":"d1595e42-b79e-4f8d-9180-889651cf8ca6","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/55","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:43:02.639Z"}],"sources":[{"listingId":"d1595e42-b79e-4f8d-9180-889651cf8ca6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/audit/logs/55","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:43:02.639Z","lastSeenAt":"2026-04-27T06:33:42.525Z"}],"details":{"listingId":"d1595e42-b79e-4f8d-9180-889651cf8ca6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/55 \\\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 accepting USDC on Base network at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/55"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/audit/logs/55"}],"useCases":["Retrieving audit log entry 55 from the lowpaymentfee.com platform","Programmatic access to audit data without API key management","Agent-driven on-demand data retrieval with per-call USDC payment"],"bestFor":["Developers or agents needing keyless, pay-as-you-go audit log access","x402-compatible agents that can settle USDC on Base","Use cases where avoiding subscription commitments is preferred"],"notFor":["Bulk audit log retrieval (no documented batch or list endpoints)","Users who need detailed API documentation or guaranteed SLAs before integrating","Non-crypto payment workflows — requires USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:28.494Z"},"updatedAt":"2026-04-27T06:33:42.525Z"}}