{"uid":"cap_RiEwaFrALXu0_T6HPh4gA","slug":"x402-tools-quote-guard-diagnostics-c1b6d2d7","name":"x402-tools Quote Guard Diagnostics","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/quotaguard?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"quotaguard","note":"Example paid JSON shape. Not a live settle.","price":"$0.18","title":"Quote Guard"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.18","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.18/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.18","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.18","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UIun12APduiQIpuNx6b20","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.18","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a paid JSON diagnostic payload for the 'quotaguard' SKU via the x402 HTTP payment protocol, returning HTTP 402 with EIP-3009 payment details if unpaid.","exampleAgentPrompt":"Run the x402-tools Quote Guard diagnostic to check that my x402 payment setup works — I want to see the paid JSON response for the quotaguard SKU at $0.18 USDC.","exampleUseCases":[{"title":"Testing x402 payment agent integration","prompt":"I'm building a payment agent that handles x402 micropayments — can you call the Quote Guard diagnostic endpoint and confirm my EIP-3009 payment credentials can successfully settle the $0.18 USDC quotaguard SKU?"},{"title":"Inspecting 402 error response structure","prompt":"What does the raw HTTP 402 response with EIP-3009 extras look like when you hit the x402-tools quotaguard endpoint without paying? I want to see the full error shape before building my payment handler."},{"title":"Verifying OpenX402 facilitator connectivity","prompt":"Check that the OpenX402 facilitator is reachable and correctly gating the quotaguard SKU — can you probe the Quote Guard diagnostic and confirm the paid JSON shape comes back after settling $0.18 USDC?"}],"resultDescription":"A JSON object containing the SKU identifier ('quotaguard'), a diagnostic note, the price ('$0.18'), and the title ('Quote Guard'). If payment has not been made, returns HTTP 402 with EIP-3009 payment metadata including facilitator details for settlement via OpenX402.","failureModes":["HTTP 402 returned with EIP-3009 extras if payment not provided or invalid","Payment token rejected by OpenX402 facilitator — check facilitator compatibility","Malformed properties parameter may result in unexpected response","Network timeout if OpenX402 facilitator is unreachable","Non-x402-aware client may not handle 402 response correctly"],"whenToPreferThis":"Choose this endpoint when you need to test or validate an x402 micropayment flow end-to-end, specifically using the OpenX402 facilitator and EIP-3009 payment authorization. It is ideal for developers building x402-aware agents who need a live sandbox-like paid endpoint to confirm their payment logic works before integrating with production services. Not suitable for non-x402 payment methods or general API quota management.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:48:10.513Z","isFirstParty":false,"canonicalSlug":"x402-tools-quote-guard-diagnostics-c1b6d2d7"}