{"id":"95a2a011-d5c4-4458-aaf7-6169d0e882f2","shortId":"waHW2q","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.","tagline":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.","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/132` appears to be part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request in USDC.\n\nThe endpoint is live and returns a standard x402 challenge (HTTP 402) requiring an `X-PAYMENT` header with an exact-scheme payment of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. The response MIME type is `application/json` and the input method is HTTP POST.\n\nHowever, the specific functionality of `/api/v1/trades/132` is unclear. The endpoint path suggests it may return data about a particular trade (ID 132), but it is not listed among the documented API categories on the landing page (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). No request body schema, response schema, or detailed documentation is available — the docs, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. Without knowing what this endpoint actually returns or what input it expects, callers will need to experiment or contact the provider.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","json-response","http-post","no-api-key"],"categories":["finance","data"],"synonyms":["trade data API","x402 endpoint","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee","trades endpoint"],"warnings":["The specific endpoint /api/v1/trades/132 is not listed among the documented APIs on the landing page — its purpose and expected input/output are unknown.","All documentation pages (docs, pricing, README, api) render only a 'Connect wallet' prompt with no substantive content.","No request body schema or response schema is available; callers must experiment to discover the API contract."],"endpointUrl":"https://lowpaymentfee.com/api/v1/trades/132","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/132","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and the x402 challenge is well-formed with clear pricing ($0.02 USDC on Base). However, there is no documentation for this specific endpoint, no request/response schema, and the docs pages are empty. The purpose of /api/v1/trades/132 is not explained anywhere in the crawled material, making this effectively a stub 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'0.02':10,28,88,130 '000':119 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':136 '0x8335':124 '132':176 '20':118 '2913':125 '300':139 '402':104 'Base network API' 'USDC micropayment API' 'access':6,24,44 'actual':231 'address':135 'ai':193 'ai/ml':78 'among':182 'analyt':77,192 'api':5,16,23,34,43,73,185 'appear':58 'application/json':147 'avail':208 'base':8,26,52,120,127 'bodi':200 'broader':64 'call':72 'caller':238 'categori':186 'challeng':102 'connect':219 'contact':244 'content':225 'data':76,81,170,191 'detail':205 'doc':210 'document':184,206 'dozen':67 'endpoint':38,74,94,164,230 'equal':129 'exact':114 'exact-schem':113 'expect':237 'experi':242 'financ':195 'finance/web3':80 'function':158 'gate':3,21 'header':110 'howev':155 'http':103,153 'http-post' 'id':175 'infer':79 'infrastructur':83,197 'input':150,235 'json-response' 'key':17,35 'know':227 'land':189 'list':181 'live':96 'lowpaymentfee' 'lowpaymentfee.com':40 'may':168 'method':151 'mime':144 'ml':194 'need':240 'network':53 'no-api-key' 'offer':66 'page':190,214 'part':61 'particular':173 'path':165 'pay':9,27,70 'pay-per-cal':69 'pay-per-call API' 'pay-per-request' 'payment':48,109,116,131 'per':11,29,71,89 'platform':65 'post':154 'premium':4,22,42 'price':86,211 'prompt':221 'protocol':49 'provid':41,246 'readm':213 'render':216 'request':12,30,90,199 'requir':18,36,105 'resourc':56 'respons':143,202 'return':98,169,232 'schema':201,203 'scheme':115 'second':140 'sent':133 'span':75 'specif':55,157 'standard':100 'substant':224 'suggest':166 'timeout':141 'trade':174 'trade data API' 'trades endpoint' 'type':145 'unclear':162 'unit':121 'usdc':14,32,92,123 'usdc-base' 'util':84 'via':45 'wallet':220 'web3':196 'without':226 'x':108 'x-payment':107 'x402':2,20,47,101 'x402 endpoint' 'x402-gated':1,19 'x402-payment'","prices":[{"id":"0a1a0167-5af1-41fd-8157-ff4836866add","listingId":"95a2a011-d5c4-4458-aaf7-6169d0e882f2","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/132","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:24.962Z"}],"sources":[{"listingId":"95a2a011-d5c4-4458-aaf7-6169d0e882f2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/trades/132","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:24.962Z","lastSeenAt":"2026-04-26T11:32:39.991Z"}],"details":{"listingId":"95a2a011-d5c4-4458-aaf7-6169d0e882f2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/trades/132 \\\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 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/trades/132"},{"claim":"The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching trade data for a specific trade ID via a single paid API call","Integrating pay-per-request data access into autonomous agents on Base","Accessing premium API resources without managing API keys or subscriptions"],"bestFor":["Agents or developers who want keyless, pay-per-call API access settled in USDC on Base","Low-volume or sporadic API consumers who prefer no subscriptions","x402-compatible clients that can construct payment headers automatically"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before integrating","High-volume consumers who would benefit from bulk pricing or rate-limited plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:46.864Z"},"updatedAt":"2026-04-26T11:32:39.991Z"}}