{"id":"ed8ac588-1a68-45d2-9fb6-d7543c457d3e","shortId":"AffH66","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 #138 via a POST request, gated by the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which provides a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints on the platform share a uniform $0.02 per request pricing model settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/orders/138/status` is labeled \"Premium API Access\" in the x402 challenge. The x402 challenge confirms the endpoint is live, accepting POST requests, and requires a payment of up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02. Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through per-request micropayment.\n\nDocumentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the order status response looks like. The platform's landing page lists many other endpoints but provides no detailed documentation for any of them. As a result, the actual response format and the meaning of \"order 138 status\" are unknown.","tags":[],"capabilities":["x402-payment","usdc-base","per-request-micropayment","order-status","post-endpoint","no-api-key"],"categories":["commerce","infrastructure"],"synonyms":["order status API","x402 micropayment API","pay-per-call API","Base USDC API","lowpaymentfee","order tracking endpoint"],"warnings":["No documentation available — /docs, /api, /pricing, and /README pages all render only 'Connect wallet'","No OpenAPI or response schema provided; response format is completely unknown","Endpoint is hardcoded to order ID 138 — unclear if this is a demo or a real resource","The description 'Premium API Access' is generic and does not describe actual functionality","Cannot verify what data is actually returned upon successful payment"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/138/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/138/status","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but documentation is effectively nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and the endpoint is hardcoded to a single order ID (138), making its general utility unclear. Pricing is clear ($0.02 USDC on 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'/api/v1/orders/138/status':98 '/docs':172 '/pricing':174 '/readme':176 '/request':11,22 '0.02':10,21,83,138 '000':127 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':144 '0x8335':132 '138':32,239 '20':126 '2913':133 '300':147 'Base USDC API' 'accept':116 'access':103,158 'actual':231 'address':143 'advertis':157 'ai/ml':68 'analyt':67 'api':64,102,151 'base':8,19,93,128,135 'broad':57 'call':63 'catalog':58 'challeng':107,110 'check':1,12 'confirm':111 'connect':182 'content':188 'data':66,71 'detail':221 'document':167,197,222 'endpoint':24,48,76,97,113,217 'equal':137 'exampl':200 'extrem':169 'finance/web3':70 'format':233 'gate':37 'grant':160 'infer':69 'key':152 'label':100 'land':212 'like':208 'limit':155 'list':214 'live':115 'look':207 'lowpaymentfee' 'lowpaymentfee.com':26,52 'made':141 'mani':47,215 'mean':236 'micropay':6,17,166 'model':87 'network':94 'no-api-key' 'offer':49 'one':45 'openapi':192 'order':2,13,31,204,238 'order status API' 'order tracking endpoint' 'order-status' 'page':177,213 'pay':61 'pay-per-cal':60 'pay-per-call API' 'payment':41,122,139 'per':62,84,164 'per-request':163 'per-request-micropayment' 'platform':53,79,210 'post':35,117 'post-endpoint' 'premium':101 'price':86 'prompt':184 'protocol':42 'provid':55,219 'pure':161 'rate':154 'render':179 'request':36,85,118,165 'request/response':195 'requir':120 'respons':206,232 'result':229 'return':27 'schema':196 'second':148 'servic':74 'settl':88 'share':80 'span':65 'spars':170 'spec':193 'specif':96 'status':3,14,29,205,240 'timeout':149 'uniform':82 'unit':129 'unknown':242 'usdc':9,20,90,131 'usdc-base' 'util':73 'via':4,15,33 'wallet':183 'x402':5,16,40,106,109 'x402 micropayment API' 'x402-payment'","prices":[{"id":"b600f7d2-e4cd-42c1-9761-2abc1c7421d9","listingId":"ed8ac588-1a68-45d2-9fb6-d7543c457d3e","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/138/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":"2026-04-18T18:48:35.434Z"}],"sources":[{"listingId":"ed8ac588-1a68-45d2-9fb6-d7543c457d3e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/138/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:35.434Z","lastSeenAt":"2026-04-22T13:31:12.387Z"}],"details":{"listingId":"ed8ac588-1a68-45d2-9fb6-d7543c457d3e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/138/status\n# Returns 402 with x402 payment challenge.\n# Attach X-PAYMENT header with signed USDC payment on Base to access.","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"x402 challenge returns 402 with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/138/status"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/orders/138/status"}],"useCases":["Querying the status of a specific order (#138) via automated agent with USDC micropayment","Demonstrating x402 protocol integration for pay-per-call API access","Building agent workflows that pay per API call without API key management"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Agents needing keyless, pay-per-call API access","Prototyping micropayment-gated API consumption"],"notFor":["Production order management systems (endpoint is hardcoded to order 138)","Users who need detailed API documentation or response schema guarantees","High-volume use cases where per-request payment overhead is impractical"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:12.294Z"},"updatedAt":"2026-04-22T13:31:12.387Z"}}