{"id":"782602de-bd19-4b69-b00c-7fccdb2130f3","shortId":"nQkuuk","kind":"x402","title":"Check order status via x402 micropayment on Base for $0.02 per request in USDC.","tagline":"Check order status via x402 micropayment on Base for $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com returns the status of a specific order (order ID 10 in the probed URL pattern) behind an x402 paywall. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge. The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). The endpoint accepts POST requests and returns application/json.\n\nThe broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and crypto market data, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, the specific endpoint being listed here is an order-status lookup, which does not clearly map to any of those advertised categories. Documentation pages (/docs, /pricing, /api, /README) all returned only a \"Connect wallet\" prompt with no substantive content, so the actual response schema and detailed behavior of this endpoint remain unknown.\n\nBecause there is no OpenAPI spec, no example responses, and no documentation beyond the landing page summary, the precise fields returned by this order-status endpoint cannot be confirmed. Agents should expect a JSON response but must handle unknown schema. The x402 challenge is live and well-formed.","tags":[],"capabilities":["x402-payment","usdc-base","order-status","pay-per-call","json-response","no-api-key"],"categories":["commerce","data"],"synonyms":["order tracking","order status check","x402 API","micropayment API","Base USDC API","pay-per-request","lowpaymentfee"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all return only 'Connect wallet' with no content.","Response schema is completely unknown; no examples or OpenAPI spec provided.","The endpoint URL contains a hardcoded order ID (10); it is unclear whether this is parameterizable or a demo/test resource.","The 'Premium API Access' title is generic and does not describe the endpoint's actual function.","The broader platform advertises many API categories but none match 'order status', raising questions about what this endpoint actually returns."],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/10/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/10/status","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint exists and accepts payment. However, there is no OpenAPI spec, no response schema, no example responses, and all documentation pages are empty stubs ('Connect wallet'). The endpoint's actual functionality (order status for what system?) is unclear, and the URL appears to be a single hardcoded order ID rather than a parameterized 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'/docs':171 '/pricing':172 '/readme':174 '0.02':10,24,85,132 '000':78 '0x8335':62 '10':42 '20':77 '2913':63 '6':88 'Base USDC API' 'accept':92 'actual':188 'advertis':102,167 'agent':229 'ai/ml':114 'amount':72 'analysi':117 'analyt':113 'api':110,137 'application/json':97 'base':8,22,57,79 'behavior':193 'behind':48 'beyond':211 'broader':99 'call':75,109 'cannot':226 'categori':168 'challeng':69,242 'check':1,15 'classif':119 'clear':161 'commit':144 'confirm':228 'connect':179 'content':185 'contract':61 'crypto':123 'data':112,125 'decim':89 'detail':192 'document':169,210 'embed':120 'endpoint':30,91,148,196,225 'equal':84 'exact':67 'exact-schem':66 'exampl':206 'expect':231 'field':218 'financ':121 'form':248 'handl':237 'howev':145 'id':41 'infer':115 'infrastructur':127 'json':233 'json-response' 'key':138 'land':213 'limit':141 'list':150 'live':244 'lookup':157 'lowpaymentfee' 'lowpaymentfee.com':32,100 'map':162 'market':124 'maximum':71 'micropay':6,20 'micropayment API' 'must':236 'network':58 'no-api-key' 'openapi':203 'order':2,16,39,40,155,223 'order status check' 'order tracking' 'order-status':154,222 'page':170,214 'pattern':47 'pay':107 'pay-per-cal':106 'pay-per-call' 'pay-per-request' 'payment':52 'paywal':51 'per':11,25,74,108,133 'platform':101 'post':93 'precis':217 'price':130 'probe':45 'prompt':181 'rate':140 'remain':197 'request':12,26,94,134 'requir':73 'respons':189,207,234 'return':33,96,176,219 'schema':190,239 'scheme':68 'sentiment':116 'settl':54 'span':111 'spec':204 'specif':38,147 'status':3,17,35,156,224 'substant':184 'suit':104 'summar':118 'summari':215 'unit':80 'unknown':198,238 'url':46 'usdc':14,28,60,82,86 'usdc-base' 'use':59,87 'util':128 'via':4,18 'wallet':180 'well':247 'well-form':246 'x402':5,19,50,241 'x402 API' 'x402-payment'","prices":[{"id":"6def14e2-5c07-4449-9d91-357c355eb846","listingId":"782602de-bd19-4b69-b00c-7fccdb2130f3","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/10/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":"2026-04-18T18:48:31.807Z"}],"sources":[{"listingId":"782602de-bd19-4b69-b00c-7fccdb2130f3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/10/status","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:31.807Z","lastSeenAt":"2026-04-22T15:01:31.147Z"}],"details":{"listingId":"782602de-bd19-4b69-b00c-7fccdb2130f3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/10/status \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"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 on Base network","source_url":"https://lowpaymentfee.com/api/v1/orders/10/status"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/10/status"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Checking the status of an order programmatically via a single micropayment","Integrating order-status lookups into an agent workflow without managing API keys","Demonstrating x402 payment protocol usage on Base network"],"bestFor":["Agents needing stateless, keyless order-status queries","Developers experimenting with x402 micropayment protocols","Low-volume, pay-as-you-go order tracking"],"notFor":["High-volume order management systems needing bulk queries at lower per-call cost","Use cases requiring detailed API documentation or guaranteed SLAs","Applications needing authentication, sessions, or persistent state"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:12.524Z"},"updatedAt":"2026-04-22T15:01:31.147Z"}}