{"id":"e6119177-0e1f-4521-acc0-d8ecae496422","shortId":"Smuvb8","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 #18 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 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/orders/18/status` is labeled \"Premium API Access\" in the x402 challenge. The payment scheme is \"exact\" with a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the X-PAYMENT header per the x402 protocol (version 1), with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through per-request micropayment.\n\nThe broader platform also advertises endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — 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 undocumented.","tags":[],"capabilities":["x402-payment","usdc-base","order-status","pay-per-request","no-api-key","micropayment"],"categories":["commerce","infrastructure"],"synonyms":["order status API","x402 endpoint","micropayment API","USDC payment API","Base network API","pay-per-call","lowpaymentfee"],"warnings":["No API documentation available — docs, pricing, and README pages all return only 'Connect wallet' with no content.","No response schema or example response is provided; actual output format is unknown.","The endpoint path is hardcoded to order ID 18; it is unclear whether other order IDs are supported or how to discover them.","The platform advertises many endpoints but none have documented schemas or usage examples."],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/18/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/18/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 with clear pricing. However, there is no OpenAPI schema, no response examples, and all documentation pages return only a wallet-connect stub. The endpoint path is hardcoded to a single order ID (18), making its general utility unclear. Effectively a stub 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'0.02':11,24,76,121,194 '000':110 '0x8335':115 '1':141 '18':36 '20':109 '2913':116 '300':144 '6':125 'Base network API' 'USDC payment API' 'access':95,155 'across':63 'actual':215 'advertis':154,168 'ai/ml':66 'also':167 'analysi':172 'analyt':65 'api':61,94,148 'base':8,21,85,111,118 'behavior':216 'behind':42 'broader':52,165 'call':60 'challeng':46,99 'check':1,14 'classif':175 'connect':206 'content':212 'convers':187 'data':64,69 'decim':126 'doc':200 'document':198 'dozen':55 'embed':176 'endpoint':28,62,89,169,222 'equal':120 'estim':184 'exact':104 'exchang':179 'feed':178 'finance/web3':68 'gas':183 'gate':41 'generat':189 'geocod':185 'given':122 'grant':157 'header':135 'howev':197 'infer':67 'key':149 'label':92 'limit':152 'lowpaymentfee' 'lowpaymentfee.com':30 'made':129 'maxamountrequir':107 'micropay':6,19,163 'micropayment' 'micropayment API' 'network':9,22,86 'no-api-key' 'offer':54 'order':2,15,35 'order status API' 'order-status' 'page':199 'part':49 'pay':58 'pay-per-cal':57 'pay-per-call' 'pay-per-request' 'payment':45,101,127,134 'per':12,25,59,77,136,161 'per-request':160 'platform':53,166 'point':196 'post':39 'premium':93 'price':74,177,195,201 'prompt':208 'protocol':139 'pure':158 'quot':182 'rate':151,180 'readm':202 'remain':223 'request':13,26,40,78,162 'respons':218 'return':31,203 'schema':219 'scheme':102 'second':145 'sentiment':171 'servic':72 'settl':80 'specif':88 'status':3,16,33 'substant':211 'summar':174 'text':173 'timeout':146 'token':181 'undocu':224 'unit':112 'usdc':82,114,123 'usdc-base' 'util':71 'valid':186 'version':140 'via':4,17,37,130 'wallet':207 'x':133 'x-payment':132 'x402':5,18,44,98,138 'x402 endpoint' 'x402-payment'","prices":[{"id":"58fe2efa-62e9-403d-844a-3fa67a4ee67f","listingId":"e6119177-0e1f-4521-acc0-d8ecae496422","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/18/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":"2026-04-18T18:48:48.086Z"}],"sources":[{"listingId":"e6119177-0e1f-4521-acc0-d8ecae496422","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/18/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:48.086Z","lastSeenAt":"2026-04-22T10:01:54.629Z"}],"details":{"listingId":"e6119177-0e1f-4521-acc0-d8ecae496422","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/18/status \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/orders/18/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 x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/orders/18/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":"Documentation pages (docs, pricing, README) return only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Checking the status of a specific order via a single micropayment","Demonstrating x402 protocol integration for pay-per-call APIs","Agent-driven order tracking without pre-provisioned API keys"],"bestFor":["Developers experimenting with x402 micropayment protocol","Agents needing keyless, pay-per-use 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 Base network","Anyone needing detailed API documentation or response schema guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:11.69Z"},"updatedAt":"2026-04-22T10:01:54.629Z"}}