{"id":"c2018a7c-cfb0-47ba-b514-6d6aa72cc6f5","shortId":"nMKcvd","kind":"x402","title":"Check order status via x402 micropayment on Base network for $0.02 per request.","tagline":"Check order status via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint at lowpaymentfee.com returns the status of order #21 via a POST request, gated behind an x402 payment challenge. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/orders/21/status` is listed as \"Premium API Access\" and costs 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimal places. Payment is made via the x402 protocol's `exact` scheme with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through per-request micropayment.\n\nThe platform's landing page lists additional endpoint categories including sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, and more — all at the same $0.02 price point. However, documentation pages (docs, pricing, README) returned only a \"Connect wallet\" prompt with no substantive content, so the actual behavior and response schemas of these endpoints remain unverified beyond the x402 challenge metadata.","tags":[],"capabilities":["x402-payment","usdc-base","order-status","pay-per-request","micropayment","no-api-key","json-response"],"categories":["commerce","infrastructure"],"synonyms":["order status API","x402 micropayment API","pay-per-call API","Base USDC API","lowpaymentfee","order tracking endpoint"],"warnings":["Documentation pages (/docs, /pricing, /README) contain no substantive content — only a 'Connect wallet' prompt.","No response schema or example response is available for this endpoint.","The endpoint path is hardcoded to order ID 21; it is unclear whether other order IDs are supported or what the order refers to.","The platform lists many endpoint categories (AI, finance, analytics) but none could be verified beyond the landing page listing."],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/21/status","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/orders/21/status","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 returns a valid x402 challenge, but there is no documentation, no response schema, and no examples of actual response payloads. The docs, pricing, and README pages all returned only 'Connect wallet' with no content. The endpoint path is hardcoded to a single order ID (21), making its general utility 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'0.02':11,24,75,110,176 '000':99 '0x8335':104 '20':98 '21':36 '2913':105 '300':129 '6':114 'Base USDC API' 'access':95,140 'across':63 'actual':197 'addit':155 'advertis':139 'ai/ml':66 'analysi':160 'analyt':65 'api':61,94,133 'base':8,21,84,100,107 'behavior':198 'behind':42 'beyond':207 'broader':52 'call':60 'categori':157 'challeng':46,210 'check':1,14 'classif':163 'connect':188 'content':194 'cost':97 'data':64 'decim':115 'doc':182 'document':180 'dozen':55 'embed':164 'endpoint':28,62,88,156,204 'equal':109 'exact':125 'exchang':167 'feed':166 'finance/web3':68 'gate':41 'geocod':169 'given':111 'grant':142 'howev':179 'includ':158 'infer':67 'infrastructur':70 'json-response' 'key':134 'land':152 'limit':137 'list':91,154 'lowpaymentfee' 'lowpaymentfee.com':30 'made':119 'metadata':211 'micropay':6,19,148 'micropayment' 'network':9,22,85 'no-api-key' 'offer':54 'order':2,15,35 'order status API' 'order tracking endpoint' 'order-status' 'page':153,181 'part':49 'pay':58 'pay-per-cal':57 'pay-per-call API' 'pay-per-request' 'payment':45,117 'per':12,25,59,76,146 'per-request':145 'place':116 'platform':53,150 'point':178 'post':39 'premium':93 'price':73,165,177,183 'prompt':190 'protocol':123 'pure':143 'rate':136,168 'readm':184 'remain':205 'request':13,26,40,77,147 'respons':200 'return':31,185 'schema':201 'scheme':126 'second':130 'sentiment':159 'settl':79 'specif':87 'status':3,16,33 'substant':193 'summar':162 'text':161 'timeout':131 'unit':101 'unverifi':206 'usdc':81,103,112 'usdc-base' 'util':71 'via':4,17,37,120 'wallet':189 'x402':5,18,44,122,209 'x402 micropayment API' 'x402-payment'","prices":[{"id":"b77869c3-4a32-4b1e-b412-46acf2f10cff","listingId":"c2018a7c-cfb0-47ba-b514-6d6aa72cc6f5","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/orders/21/status","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:48:57.118Z"}],"sources":[{"listingId":"c2018a7c-cfb0-47ba-b514-6d6aa72cc6f5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/21/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:57.118Z","lastSeenAt":"2026-04-22T09:01:14.276Z"}],"details":{"listingId":"c2018a7c-cfb0-47ba-b514-6d6aa72cc6f5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/21/status \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/orders/21/status","method":"POST","headers":{"X-PAYMENT":"<x402_payment_token>","Content-Type":"application/json"}},"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/21/status"},{"claim":"All endpoints 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":"The platform offers endpoints across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/orders/21/status"}],"useCases":["Checking the status of a specific order via a single micropayment","Demonstrating x402 protocol integration for pay-per-request APIs","Agent-driven order tracking without pre-provisioned API keys"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing keyless, pay-as-you-go API access on Base","Low-volume order status lookups without subscription commitments"],"notFor":["High-volume order management systems needing bulk queries","Users without USDC on the Base network","Anyone needing detailed order history or modification capabilities"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:11.332Z"},"updatedAt":"2026-04-22T09:01:14.276Z"}}