{"id":"1cca1699-7a4b-42d0-b3e6-067c929c8142","shortId":"eBbHD9","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\" behind an x402 paywall on the Base network. The specific resource `/api/v1/trades/184` appears to be part of a broader platform offering data & analytics, AI/ML inference, finance/Web3 data, and infrastructure utility endpoints — all priced at $0.02 per request paid in USDC (USD Coin) on Base.\n\nThe x402 challenge confirms the endpoint is live, accepting POST requests and settling payments via the \"exact\" scheme to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys or rate limits are advertised; access is granted per-request upon payment. The response MIME type is `application/json`.\n\nHowever, the specific functionality of `/api/v1/trades/184` is unclear. The path suggests a trades-related resource (possibly returning data for a specific trade with ID 184), but no documentation, request schema, or response schema is available for this particular endpoint. The site's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. The platform advertises many endpoint categories but provides no detailed documentation for any of them.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","per-request-pricing","json-response","no-api-key","post-method"],"categories":["finance","data"],"synonyms":["trades API","x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API","premium data endpoint"],"warnings":["No documentation available for this specific endpoint — the /docs, /pricing, /api, and /README pages all render only a 'Connect wallet' prompt with no content.","The purpose of /api/v1/trades/184 is unclear; the path suggests trade data but no schema or description exists.","No request body schema or response schema is provided, making integration risky without trial calls.","The endpoint path includes a hardcoded ID (184), suggesting it may be a single-resource lookup rather than a general-purpose trades API."],"endpointUrl":"https://lowpaymentfee.com/api/v1/trades/184","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/184","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and no explanation of what /api/v1/trades/184 actually returns. The site's doc pages are empty beyond a wallet connect prompt. This is effectively a stub 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'0.02':10,24,71,117 '000':108 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':101 '184':165 '20':107 '6':113 'Base network API' 'USDC micropayment API' 'accept':89 'access':6,20,36,126 'address':100 'advertis':125,201 'ai/ml':60 'amount':104 'analyt':59 'api':5,19,35,119,186 'appear':49 'application/json':139 'avail':175 'base':8,22,43,80,109 'base-network' 'behind':37 'broader':55 'categori':204 'challeng':83 'coin':78 'confirm':84 'connect':192 'content':198 'data':58,63,158 'decim':114 'detail':208 'doc':183 'document':168,209 'endpoint':30,67,86,179,203 'equal':116 'exact':97 'finance/web3':62 'function':143 'gate':3,17 'grant':128 'howev':140 'id':164 'infer':61 'infrastructur':65 'json-response' 'key':120 'limit':123 'live':88 'lowpaymentfee' 'lowpaymentfee.com':32 'mani':202 'max':103 'mime':136 'network':44 'no-api-key' 'offer':57 'page':187 'paid':74 'part':52 'particular':178 'path':149 'pay':9,23 'pay-per-call API' 'payment':94,133 'paywal':40 'per':11,25,72,130 'per-request':129 'per-request-pricing' 'platform':56,200 'possibl':156 'post':90 'post-method' 'premium':4,18,34 'premium data endpoint' 'price':69,184 'prompt':194 'provid':33,206 'rate':122 'relat':154 'render':189 'request':12,26,73,91,131,169 'requir':105 'resourc':47,155 'respons':135,172 'return':157 'schema':170,173 'scheme':98 'settl':93 'site':181 'specif':46,142,161 'suggest':150 'trade':153,162 'trades API' 'trades-rel':152 'type':137 'unclear':147 'unit':110 'upon':132 'usd':77 'usdc':14,28,76,112 'usdc-settlement' 'util':66 'via':95 'wallet':193 'x402':2,16,39,82 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"96bb291b-1dee-4209-96ef-a20ddd9c6a08","listingId":"1cca1699-7a4b-42d0-b3e6-067c929c8142","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/184","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:45.607Z"}],"sources":[{"listingId":"1cca1699-7a4b-42d0-b3e6-067c929c8142","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/trades/184","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:45.607Z","lastSeenAt":"2026-04-26T05:32:45.888Z"}],"details":{"listingId":"1cca1699-7a4b-42d0-b3e6-067c929c8142","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/trades/184 \\\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 requires 20,000 base units of USDC ($0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/trades/184"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/trades/184"},{"claim":"The site offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching trade data via a single micropayment without needing an API key","Agent-driven programmatic access to trade information with per-call USDC settlement","Integrating pay-per-request trade data into automated workflows on Base"],"bestFor":["Developers wanting keyless, pay-per-call API access","AI agents that can settle x402 payments in USDC on Base","Users who need occasional trade data without subscription commitments"],"notFor":["Users needing detailed API documentation or response schemas before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:45.898Z"},"updatedAt":"2026-04-26T05:32:45.888Z"}}