{"id":"1bf2c958-6161-4cdc-aa61-f8f0002e211c","shortId":"uPYEsL","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 #143 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 spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request settled in USDC on the Base network.\n\nThe specific resource `/api/v1/orders/143/status` accepts POST requests and requires an X-PAYMENT header carrying a valid x402 payment proof. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.\n\nThe platform advertises no API keys, no rate limits, and instant access. Documentation pages (/docs, /pricing, /api, /README) all resolve but render only a \"Connect wallet\" prompt with no substantive content, so the actual response schema and detailed behavior of this endpoint are unknown. The endpoint is live and returning a well-formed x402 v1 challenge.","tags":[],"capabilities":["x402-payment","usdc-base","order-status","pay-per-request","no-api-key"],"categories":["commerce","infrastructure"],"synonyms":["order status API","x402 micropayment","USDC pay-per-call","Base network API","lowpaymentfee","order tracking","402 payment required"],"warnings":["All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' prompt with no actual content.","The endpoint path references a specific order ID (143); it is unclear whether this is a demo or a general-purpose endpoint.","No response schema or example response is available — the actual payload returned after payment is unknown.","No OpenAPI or machine-readable spec is published."],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/143/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/143/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 the specific resource (/orders/143/status) is a single hardcoded order ID with no documented request or response schema. All documentation pages render only a wallet-connect prompt. No OpenAPI spec, no examples, and no description of what the response 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'/api/v1/orders/143/status':85 '/docs':153 '/pricing':154 '/readme':156 '/request':11,22 '0.02':10,21,72,121 '000':110 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':132 '0x8335':115 '143':32 '20':109 '2913':116 '300':137 '402 payment required' '6':125 'Base network API' 'USDC pay-per-call' 'accept':86 'access':150 'actual':172 'address':131 'advertis':105,141 'ai/ml':62 'analyt':61 'api':57,143 'base':8,19,80,111,118 'behavior':177 'broader':48 'call':56 'carri':96 'challeng':42,104,195 'check':1,12 'connect':163 'content':169 'data':60,65 'decim':126 'detail':176 'document':151 'dozen':51 'endpoint':24,58,180,184 'equal':120 'finance/web3':64 'form':192 'gate':37 'given':122 'header':95 'infer':63 'infrastructur':67 'instant':149 'key':144 'limit':147 'live':186 'lowpaymentfee' 'lowpaymentfee.com':26 'maxamountrequir':107 'micropay':6,17 'network':81 'no-api-key' 'offer':50 'order':2,13,31 'order status API' 'order tracking' 'order-status' 'page':152 'part':45 'pay':54 'pay-per-cal':53 'pay-per-request' 'payment':41,94,100,127 'per':55,73 'platform':49,140 'post':35,87 'price':70 'prompt':165 'proof':101 'rate':146 'render':160 'request':36,74,88 'requir':90 'resolv':158 'resourc':84 'respons':173 'return':27,188 'schema':174 'second':138 'sent':129 'settl':75 'span':59 'specif':83 'status':3,14,29 'substant':168 'timeout':135 'unit':112 'unknown':182 'usdc':9,20,77,114,123 'usdc-base' 'util':68 'v1':194 'valid':98 'via':4,15,33 'wallet':164 'well':191 'well-form':190 'x':93 'x-payment':92 'x402':5,16,40,99,103,193 'x402 micropayment' 'x402-payment'","prices":[{"id":"5326b1ae-0a6f-4d0f-b871-75aa452efe76","listingId":"1bf2c958-6161-4cdc-aa61-f8f0002e211c","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/143/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":"2026-04-18T18:48:46.252Z"}],"sources":[{"listingId":"1bf2c958-6161-4cdc-aa61-f8f0002e211c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/143/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:46.252Z","lastSeenAt":"2026-04-22T12:03:56.872Z"}],"details":{"listingId":"1bf2c958-6161-4cdc-aa61-f8f0002e211c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/143/status \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base with asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/orders/143/status"},{"claim":"The platform lists all endpoints at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Checking the fulfillment or processing status of a specific order programmatically","Demonstrating x402 payment-gated API access on the Base L2 network","Integrating pay-per-call order tracking into an agent workflow without API key management"],"bestFor":["Developers experimenting with x402 protocol micropayments","Agents that need on-demand order status checks without subscription overhead","Projects already holding USDC on Base looking for frictionless API access"],"notFor":["Bulk order-status polling (no documented batch endpoint; per-call cost adds up)","Users without a Base-network USDC wallet","Anyone needing detailed API documentation or guaranteed SLAs (docs are essentially empty)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:11.815Z"},"updatedAt":"2026-04-22T12:03:56.872Z"}}