{"uid":"cap_a-sfHqEfIBvysH0Hg5sC3","slug":"quote-freshness-guard-84cce71f","name":"Quote Freshness Guard","description":"Reject x402 quotes that cannot remain valid through authorization and retry","url":"https://phion.systems/v1/paid/trust/quote-freshness-guard?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["body"],"properties":{"body":{"type":"object","additionalProperties":true}}},"output":{"type":"object","required":["example"],"properties":{"example":{"type":"object","additionalProperties":true}}}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_usdHb9IewFxoc4z26KufQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates that an x402 payment quote will remain valid long enough to survive the authorization and retry cycle before accepting it","exampleAgentPrompt":"Before I submit this x402 payment quote, check whether it's still fresh enough to survive the full authorization and retry cycle — reject it if the expiry window is too tight.","exampleUseCases":[{"title":"Pre-payment quote expiry check","prompt":"I have an x402 quote that's about to be used for a paid API call — can you verify it has enough time left on it to get through authorization and any retries before I commit to it?"},{"title":"Retry-safe quote validation in agent loop","prompt":"My agent is retrying a failed x402 payment and I want to make sure the original quote is still valid before trying again — check if it's fresh enough to survive another authorization attempt."},{"title":"Batch job quote freshness gating","prompt":"I'm about to kick off a series of x402-paid calls and I need to confirm each quote is fresh enough to last through the whole authorization cycle — reject any that are too close to expiry."}],"resultDescription":"A decision on whether the x402 quote is sufficiently fresh to remain valid through the authorization and retry process, along with a rejection reason if the quote fails the freshness check.","failureModes":["Quote already expired at time of check — rejected with expiry timestamp","Quote window too narrow for expected authorization latency — rejected with margin details","Malformed or missing quote fields — validation error returned","Network timeout contacting guard service — no decision returned"],"whenToPreferThis":"Use this endpoint when your agent is about to submit an x402 payment and needs to confirm the quote won't expire mid-flight during authorization or retries. It is particularly valuable in retry loops, high-latency authorization chains, or any workflow where clock drift or processing delays could cause a quote to expire before payment completes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T06:31:14.509Z","isFirstParty":false,"canonicalSlug":"quote-freshness-guard-84cce71f"}