{"id":"1d7191cf-0276-419f-b607-a611f86d5a84","shortId":"3trr7P","kind":"x402","title":"Pay-per-call premium API access on Base network via x402 protocol at $0.02/request.","tagline":"Pay-per-call premium API access on Base network via x402 protocol at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific path `/api/v1/trades/130` suggests a trades-related data endpoint, though the site broadly offers APIs across data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities—all priced at $0.02 per request.\n\nPayment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The x402 challenge indicates a maxAmountRequired of 20000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are required; access is granted instantly upon payment. The endpoint accepts POST requests and returns application/json responses.\n\nThe site's documentation pages are essentially empty (showing only \"Connect wallet\"), so there is no detailed schema or example response available for this specific trades endpoint. The broader platform advertises categories including price feeds, exchange rates, token quotes, and gas estimates under its Finance & Web3 section, suggesting this trades endpoint likely returns market or trade-related data.","tags":[],"capabilities":["x402-payment","pay-per-request","base-network","usdc-settlement","trades-data","json-response","no-api-key"],"categories":["finance","data"],"synonyms":["trade data API","market trades","crypto trades endpoint","x402 API","micropayment API","pay-per-call API","lowpaymentfee"],"warnings":["No API documentation available—all doc pages show only 'Connect wallet'","The specific functionality of /api/v1/trades/130 is undocumented and unclear","No request body schema or response schema provided","The broader site lists many endpoints but none match this exact path, suggesting it may be a generic or placeholder resource"],"endpointUrl":"https://lowpaymentfee.com/api/v1/trades/130","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/trades/130","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, and no examples available. The specific purpose of /api/v1/trades/130 is unclear beyond the generic 'Premium API Access' 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'/request':16,32 '0.02':15,31,77,103 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':90 '20000':98 '6':106 'accept':124 'access':7,23,40,116 'across':63 'advertis':161 'ai':66 'analyt':65 'api':6,22,39,62,109 'application/json':129 'avail':152 'base':9,25,85,99 'base-network' 'broad':60 'broader':159 'call':4,20 'categori':162 'challeng':93 'connect':141 'contract':89 'crypto trades endpoint' 'data':55,64,189 'decim':107 'detail':147 'document':134 'empti':138 'endpoint':34,56,123,157,181 'equal':102 'essenti':137 'estim':172 'exampl':150 'exchang':166 'feed':165 'financ':69,175 'gas':171 'grant':118 'includ':163 'indic':94 'infrastructur':72 'instant':119 'json-response' 'key':110 'learn':68 'like':182 'limit':113 'lowpaymentfee' 'lowpaymentfee.com':36 'machin':67 'market':184 'market trades' 'maxamountrequir':96 'micropayment API' 'network':10,26,86 'no-api-key' 'offer':61 'page':135 'path':48 'pay':2,18 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request' 'payment':44,80,121 'per':3,19,78 'platform':160 'post':125 'premium':5,21,38 'price':75,164 'protocol':13,29,45 'provid':37 'quot':169 'rate':112,167 'relat':54,188 'request':79,126 'requir':115 'respons':130,151 'return':128,183 'schema':148 'section':177 'settl':82 'show':139 'site':59,132 'specif':47,155 'suggest':50,178 'though':57 'token':168 'trade':53,156,180,187 'trade data API' 'trade-rel':186 'trades-data' 'trades-rel':52 'unit':100 'upon':120 'usdc':88,104 'usdc-settlement' 'use':87,105 'util':73 'via':11,27,41 'wallet':142 'web3':70,176 'x402':12,28,43,92 'x402 API' 'x402-payment'","prices":[{"id":"c039d610-9e02-40dc-95e2-d6c7454ecb96","listingId":"1d7191cf-0276-419f-b607-a611f86d5a84","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/trades/130","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:26.120Z"}],"sources":[{"listingId":"1d7191cf-0276-419f-b607-a611f86d5a84","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/trades/130","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:26.120Z","lastSeenAt":"2026-04-26T09:33:34.399Z"}],"details":{"listingId":"1d7191cf-0276-419f-b607-a611f86d5a84","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/trades/130 \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/trades/130"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/trades/130"}],"useCases":["Fetching trade data for a specific asset or market","Integrating real-time trade information into trading bots","Accessing financial data without subscription commitments","Agent-driven data retrieval with automatic crypto micropayments"],"bestFor":["Developers needing quick, keyless access to trade data","AI agents that can settle payments autonomously on Base","Users who prefer pay-per-use over monthly subscriptions"],"notFor":["High-volume consumers needing bulk pricing or rate guarantees","Users without a Base network wallet or USDC holdings","Anyone needing detailed API documentation before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:46.862Z"},"updatedAt":"2026-04-26T09:33:34.399Z"}}