{"uid":"cap_ALZ3GmjTgn2sWZtLxkmKd","slug":"usps-com-downtime-change-watch-0d0f59ac","name":"USPS.com Downtime Change Watch","description":"Change watch for is usps com down: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.","url":"https://monitor.intel.rallylive.ca/watch/monitor/is-down/usps-com?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kCjmyT6SdSkps-k9hyfYr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors usps.com availability and alerts when its status changes compared to a previous check, returning current status, changed flag, diffed fields, and last-seen timestamp.","exampleAgentPrompt":"Keep an eye on usps.com and let me know the moment its availability status changes — tell me what changed, what it looked like before, and when it was last seen.","exampleUseCases":[{"title":"Shipping deadline outage alert","prompt":"I need to know the instant usps.com goes down or comes back up — I'm running a shipping app and my users depend on it. Poll it and tell me what changed and when."},{"title":"Automated monitoring pipeline","prompt":"Set up a scheduled check for usps.com so my agent gets notified whenever the site's availability status changes compared to the last poll — I want to see the before and after values."},{"title":"Incident response trigger","prompt":"Is usps.com currently in a different state than it was the last time you checked? Show me what changed and when it was last seen so I can decide whether to escalate."}],"resultDescription":"Returns the current availability status of usps.com, a boolean 'changed' flag indicating whether the result differs from the previous call (retained for 90 days), a list of fields that changed with before/after values, and the timestamp of when the status was last seen.","failureModes":["No previous check stored — first call returns current status with no diff data","USPS.com itself is unreachable — check may reflect network error rather than site outage","Stored result older than 90 days — previous baseline may have been purged, resetting diff history","Payment not processed — endpoint requires $0.02 USDC per call via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need change-detection semantics for usps.com — not just the current status, but whether it has changed since your last poll. Ideal for scheduling periodic checks and triggering alerts only when something changes, rather than processing the same 'up' result repeatedly. Prefer this over a plain is-down check when you want diff tracking and before/after field comparison.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:49:41.092Z","isFirstParty":false,"canonicalSlug":"usps-com-downtime-change-watch-0d0f59ac"}