{"id":"d58d7ee9-5c6c-4573-bc2d-f4473d3b1f70","shortId":"TYE5zM","kind":"x402","title":"Check order status via x402 micropayment on Base (USDC, $0.02/request).","tagline":"Check order status via x402 micropayment on Base (USDC, $0.02/request).","description":"This endpoint at lowpaymentfee.com returns the status of order #168 via a POST request, gated by 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 utility categories — all priced at $0.02 per request settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/orders/168/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). No API keys or rate limits are advertised; access is instant once payment is included.\n\nThe broader platform 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, the crawled documentation pages (docs, api, pricing, README) all 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","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee"],"warnings":["Endpoint is hardcoded to order #168 — unclear if other order IDs are supported or if this is a demo","All documentation pages (/docs, /api, /pricing, /README) returned no substantive content","No response schema or example response available — actual output format is unknown","No OpenAPI spec or machine-readable documentation found","The platform lists many endpoints but none have documented schemas or behavior"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/168/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/168/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 (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, the endpoint is hardcoded to a single order ID, there is no OpenAPI schema, no response examples, and all documentation pages returned only 'Connect wallet' with no content. The actual utility and response format are 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'/request':11,22 '0.02':10,21,71,115,180 '000':104 '0x8335':109 '1':135 '168':32 '20':103 '2913':110 '6':119 'Base network API' 'USDC micropayment API' 'access':89,144 'across':59 'actual':205 'advertis':143,154 'ai/ml':62 'analysi':158 'analyt':61 'api':57,88,137,189 'base':8,19,79,105,112 'behavior':206 'broader':48,152 'call':56 'categori':67 'challeng':42,93 'check':1,12 'classif':161 'connect':196 'content':202 'convers':173 'crawl':185 'data':60 'decim':120 'doc':188 'document':186 'dozen':51 'embed':162 'endpoint':24,58,83,155,212 'equal':114 'estim':170 'exact':98 'exchang':165 'feed':164 'finance/web3':64 'gas':169 'gate':37 'generat':175 'geocod':171 'given':116 'header':129 'howev':183 'includ':150 'infer':63 'instant':146 'key':138 'label':86 'limit':141 'lowpaymentfee' 'lowpaymentfee.com':26 'made':123 'maxamountrequir':101 'micropay':6,17 'micropayment' 'network':80 'no-api-key' 'offer':50 'order':2,13,31 'order status API' 'order-status' 'page':187 'part':45 'pay':54 'pay-per-cal':53 'pay-per-call API' 'pay-per-request' 'payment':41,95,121,128,148 'per':55,72,130 'platform':49,153 'point':182 'post':35 'premium':87 'price':69,163,181,190 'prompt':198 'protocol':133 'quot':168 'rate':140,166 'readm':191 'remain':213 'request':36,73 'respons':208 'return':27,193 'schema':209 'scheme':96 'sentiment':157 'settl':74 'specif':82 'status':3,14,29 'substant':201 'summar':160 'text':159 'token':167 'undocu':214 'unit':106 'usdc':9,20,76,108,117 'usdc-base' 'util':66 'valid':172 'version':134 'via':4,15,33,124 'wallet':197 'x':127 'x-payment':126 'x402':5,16,40,92,132 'x402 endpoint' 'x402-payment'","prices":[{"id":"27386c43-e7a3-495f-b504-a6593022c516","listingId":"d58d7ee9-5c6c-4573-bc2d-f4473d3b1f70","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/168/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":"2026-04-18T18:48:55.907Z"}],"sources":[{"listingId":"d58d7ee9-5c6c-4573-bc2d-f4473d3b1f70","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/168/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:55.907Z","lastSeenAt":"2026-04-22T08:31:17.280Z"}],"details":{"listingId":"d58d7ee9-5c6c-4573-bc2d-f4473d3b1f70","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/168/status \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/orders/168/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":"maxAmountRequired is 20000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)","source_url":"https://lowpaymentfee.com/api/v1/orders/168/status"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Checking the status of a specific order (#168) programmatically","Demonstrating x402 pay-per-call payment flows on Base","Integrating micropayment-gated API access into agent workflows"],"bestFor":["Developers experimenting with x402 protocol payments","Agents needing pay-per-call order status checks without API keys","Prototyping micropayment-gated API integrations on Base"],"notFor":["Production order management systems (endpoint is hardcoded to order 168)","Users who need detailed API documentation or response schemas","High-volume batch order lookups"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:11.349Z"},"updatedAt":"2026-04-22T08:31:17.280Z"}}