{"uid":"cap_O6y5LA2fsOHeMMxwadGFV","slug":"page-change-monitor-30-day-watch-f505ad05","name":"Page-Change Monitor (30-Day Watch)","description":"Page-change monitoring for 30 days: we poll a URL on schedule, you poll us for changes","url":"https://predator-ubuntu.taild9a745.ts.net/v1/watch?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"interval_minutes":{"type":"integer","maximum":1440,"minimum":5}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ogfq-D5kNVIvPmuGB8UvF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Registers a URL for scheduled polling over 30 days and lets the caller poll back for detected page changes","exampleAgentPrompt":"Keep an eye on https://example.com/pricing for me — check it every 60 minutes and let me know when anything changes.","exampleUseCases":[{"title":"Competitor pricing page surveillance","prompt":"Watch https://competitor.com/pricing every 30 minutes for the next 30 days and alert me whenever the content changes so I can react to pricing shifts."},{"title":"Government regulation update tracking","prompt":"Monitor https://regulations.gov/document/EPA-2024-001 every 120 minutes — I need to know the moment any text on that page is updated so our compliance team can respond."},{"title":"E-commerce product availability alert","prompt":"Check https://store.example.com/products/limited-edition-sneaker every 5 minutes and tell me as soon as the page content changes, since that usually means it's back in stock."}],"resultDescription":"Returns a watch registration confirming the URL is now being polled at the requested interval; subsequent polls to this service return any detected page changes (diffs or change flags) captured during the 30-day monitoring window.","failureModes":["Invalid or unreachable URL returns an error with no watch created","interval_minutes below 5 or above 1440 rejected with validation error","Payment not received results in 402 response and no registration","Target URL blocks the polling bot (403/robots.txt) causing silent missed checks","30-day window expires and no further changes are reported after expiry"],"whenToPreferThis":"Choose this endpoint when you need passive, recurring surveillance of a specific URL over days or weeks without running your own cron job or scraping infrastructure. It is ideal for low-frequency change detection (every 5 minutes to daily) where you can tolerate polling the service for results rather than receiving a push webhook. Prefer alternatives if you need real-time sub-minute alerts, webhook push notifications, or monitoring of pages requiring authentication.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:44:36.909Z","isFirstParty":false,"canonicalSlug":"page-change-monitor-30-day-watch-f505ad05"}