{"uid":"cap_uonD-m3PZq-Ljkh-SIM32","slug":"americanexpress-com-down-status-change-watch-9a61039d","name":"AmericanExpress.com Down Status Change Watch","description":"Change watch for is americanexpress 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. $0.02 per check.","url":"https://monitor.intel.rallylive.ca/watch/monitor/is-down/americanexpress-com?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_sJfgwjDEih8RO7rkH_OYI","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":"Checks if americanexpress.com is currently down, compares the result with the previous check (retained 90 days), and returns whether the status has changed along with before/after field values.","exampleAgentPrompt":"Keep an eye on americanexpress.com for me and let me know if its up/down status has changed since the last time you checked — I want to know what changed and when.","exampleUseCases":[{"title":"Financial site outage alert","prompt":"Check if americanexpress.com has gone down since the last time you looked, and tell me if anything changed about its status."},{"title":"Automated uptime change detection","prompt":"Set up a recurring check on americanexpress.com so I get alerted the moment its availability status changes — whether it goes down or comes back up."},{"title":"Incident response confirmation","prompt":"I heard American Express might be having issues — has the status of americanexpress.com changed at all recently, and what does it show now versus before?"}],"resultDescription":"Returns the current up/down status of americanexpress.com, a boolean indicating whether the status changed since the last call, a list of fields that changed with their before and after values, and the timestamp of when the status was last observed. Results are compared against a cached result from up to 90 days prior.","failureModes":["No previous check exists (first call returns current state only, changed=false or null)","americanexpress.com itself is unreachable due to network issues unrelated to site status","Cached result is stale beyond 90 days, clearing comparison baseline","Payment of $0.02 USDC not processed, resulting in 402 response","Transient check failure returns ambiguous down status"],"whenToPreferThis":"Use this endpoint when you specifically need change-detection for americanexpress.com availability — not just a one-time status check. It is ideal for scheduled polling workflows where you want to be notified only when something changes, avoiding alert fatigue from repeated identical results. Prefer this over a generic HTTP ping when you need before/after diff context and a persistent 90-day history of results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:49:54.551Z","isFirstParty":false,"canonicalSlug":"americanexpress-com-down-status-change-watch-9a61039d"}