{"id":"fa741063-180a-4b3c-b6f1-98d684664635","shortId":"jmCZyv","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC.","tagline":"x402-gated premium API access on Base, pay $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol on the Base network. The specific resource `/api/v1/trades/102` appears to be part of a broader suite of pay-per-call APIs offered by the provider, spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, settled in USDC (USD Coin) on Base with no API keys, no rate limits, and no commitments required.\n\nThe x402 challenge for this particular endpoint advertises a maxAmountRequired of 20,000 base units of USDC (contract 0x8335…2913 on Base). Since USDC uses 6 decimals, this converts to $0.02 per call, consistent with the site's advertised pricing. Payment is made via the x402 \"exact\" scheme, with a 300-second timeout. The endpoint accepts POST requests and returns application/json.\n\nNote that the specific functionality of `/api/v1/trades/102` is not documented beyond the generic label \"Premium API Access.\" The path suggests it may relate to a specific trade record (ID 102), possibly in the finance/Web3 category, but no request or response schema is provided. The broader site lists many endpoints but the crawled documentation pages (docs, pricing, README) returned only a \"Connect wallet\" prompt with no additional technical detail. Treat this listing as a stub with confirmed liveness but limited documentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","no-api-key","post-method"],"categories":["finance","data"],"synonyms":["trade data API","premium API","x402 API","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee"],"warnings":["No documentation available for the specific endpoint /api/v1/trades/102 — purpose and response format are unknown","All crawled doc/pricing/README pages returned only 'Connect wallet' with no technical content","No OpenAPI spec, no request schema, no response schema provided","The endpoint path suggests a single trade record (ID 102) but this is unconfirmed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/trades/102","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/102","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 via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation of what /api/v1/trades/102 actually returns, no request/response schema, and the crawled docs pages are empty. This is effectively a stub 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'0.02':10,24,87,138 '000':120 '0x8335':126 '102':198 '20':119 '2913':127 '300':158 '6':133 'Base network API' 'USDC micropayment API' 'accept':163 'access':6,20,36,185 'addit':234 'advertis':115,146 'ai':71 'analyt':70 'api':5,19,35,63,99,184 'appear':50 'application/json':168 'base':8,22,44,96,121,129 'base-network' 'beyond':179 'broader':56,213 'call':62,140 'categori':203 'challeng':110 'coin':94 'commit':106 'confirm':244 'connect':229 'consist':141 'contract':125 'convert':136 'crawl':220 'data':69 'decim':134 'detail':236 'doc':223 'document':178,221,248 'endpoint':30,80,114,162,217 'exact':154 'financ':74 'finance/web3':202 'function':173 'gate':3,17 'generic':181 'id':197 'infrastructur':77 'json-response' 'key':100 'label':182 'learn':73 'limit':103,247 'list':215,239 'live':245 'lowpaymentfee' 'lowpaymentfee.com':32 'machin':72 'made':150 'mani':216 'maxamountrequir':117 'may':190 'network':45 'no-api-key' 'note':169 'offer':64 'page':222 'part':53 'particular':113 'path':187 'pay':9,23,60 'pay-per-cal':59 'pay-per-call API' 'pay-per-request' 'payment':40,148 'per':11,25,61,88,139 'platform':83 'possibl':199 'post':164 'post-method' 'premium':4,18,34,183 'premium API' 'price':85,147,224 'prompt':231 'protocol':41 'provid':33,67,211 'rate':102 'readm':225 'record':196 'relat':191 'request':12,26,89,165,206 'requir':107 'resourc':48 'respons':208 'return':167,226 'schema':209 'scheme':155 'second':159 'settl':90 'sinc':130 'site':144,214 'span':68 'specif':47,172,194 'stub':242 'suggest':188 'suit':57 'technic':235 'timeout':160 'trade':195 'trade data API' 'treat':237 'unit':122 'usd':93 'usdc':14,28,92,124,131 'usdc-settlement' 'use':132 'util':78 'via':37,151 'wallet':230 'web3':75 'x402':2,16,39,109,153 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"014f5dcc-bb83-4ab9-85a4-fe2a0a2fc4f5","listingId":"fa741063-180a-4b3c-b6f1-98d684664635","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/102","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:27.952Z"}],"sources":[{"listingId":"fa741063-180a-4b3c-b6f1-98d684664635","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/trades/102","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:27.952Z","lastSeenAt":"2026-04-26T09:33:34.564Z"}],"details":{"listingId":"fa741063-180a-4b3c-b6f1-98d684664635","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/trades/102 \\\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 x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base with a 300-second timeout","source_url":"https://lowpaymentfee.com/api/v1/trades/102"},{"claim":"All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/trades/102"}],"useCases":["Fetching trade-related data on a per-request payment basis","Integrating pay-per-call APIs into agent workflows without API key management","Accessing financial or trade records via x402 micropayments"],"bestFor":["Agents needing keyless, pay-per-use API access on Base","Developers prototyping x402 payment flows","Low-volume consumers who want no subscription commitments"],"notFor":["High-volume bulk data retrieval where per-request fees add up","Users who need detailed API documentation and response schemas before integrating","Non-crypto users without access to USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:46.743Z"},"updatedAt":"2026-04-26T09:33:34.564Z"}}