{"uid":"cap_yq54NVD1de_2HmPnFg-8A","slug":"page-diff-watch-0ed931f8","name":"page-diff-watch","description":"Change watch for page diff: runs the check and compares it with the result from your previous call for the same url (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when page text diff against your previous call changes. $0.01 per check.","url":"https://intel.rallylive.ca/watch/page/text-diff","method":"GET","headers":{},"bodySchema":{"type":"object","$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_9mozduKrmKtOKOdoTptYw","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 a webpage's text content and returns whether it changed since your last call, with before/after field diffs, using persistent 90-day result history.","exampleAgentPrompt":"Keep an eye on https://example.com/pricing for me — call it on a schedule and let me know the moment the page text changes, showing me exactly what was different before and after.","exampleUseCases":[{"title":"Track competitor pricing page updates","prompt":"Watch https://competitor.com/pricing every hour and tell me whenever the text on that page changes — I want to see exactly which parts changed, with the before and after content."},{"title":"Monitor government policy page for amendments","prompt":"Keep checking https://gov-site.example.gov/policy for any text changes and alert me when something differs from the last time you checked, including what specifically changed."},{"title":"Detect product availability changes on a retailer site","prompt":"Poll https://shop.example.com/products/limited-edition for text changes and let me know immediately when the page content is different from your previous check — show me what changed."}],"resultDescription":"Returns the current page text result, a boolean 'changed' flag indicating whether content differs from the previous call for that URL, a list of exactly which fields changed with before and after values, and a timestamp of when the page was last seen. Results are retained for 90 days per URL.","failureModes":["URL is unreachable or returns a non-200 status, resulting in an error or no diff data","First-time call for a URL has no previous result to compare against, so 'changed' may be indeterminate","Page uses JavaScript rendering that is not captured by a plain HTTP GET, leading to incomplete text extraction","90-day history expiry means old baselines are lost and change detection resets","Rate limiting or payment failures (x402) blocking repeated polling"],"whenToPreferThis":"Choose this endpoint when you need persistent, stateful change detection for a webpage's text content across multiple calls over time — especially when you want to know exactly which fields changed and their before/after values without managing your own storage. Ideal for scheduled agent workflows that need to track page updates without maintaining a separate database of previous states. Prefer it over one-shot scraping tools when continuity and delta detection are the goal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:22:01.919Z","isFirstParty":false}