{"uid":"cap_0nGKzYqrTWRmVlieU0Jsz","slug":"webpage-snippet-change-watcher-3c656d76","name":"Webpage Snippet Change Watcher","description":"Change watch for webpage snippet: 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 lightweight web page snippet changes. $0.01 per check.","url":"https://intel.rallylive.ca/watch/page-snippet","method":"GET","headers":{},"bodySchema":{"type":"object","$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_Fkm9ixYgX_YsmJSHmE-LW","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":"Runs a change-detection check on a webpage snippet URL and returns whether it changed since the last call, with before/after diffs and timestamps","exampleAgentPrompt":"Keep an eye on https://example.com/pricing for me — call this every hour and let me know as soon as the content changes, showing me exactly what was different before and after.","exampleUseCases":[{"title":"Price drop alert on product page","prompt":"Watch https://store.example.com/product/widget for me and tell me when the price or availability text changes — I want to know the before and after values as soon as it updates."},{"title":"Competitor announcement monitoring","prompt":"Check https://competitor.com/news every day and alert me the moment any new content appears on that snippet, showing me exactly what changed."},{"title":"Job board vacancy tracking","prompt":"Monitor https://jobs.example.com/openings for me on a schedule and tell me when new listings appear or any existing ones change, including what the page said before versus now."}],"resultDescription":"Returns the current content of the webpage snippet, a boolean 'changed' flag indicating whether it differs from the previous call, a list of fields that changed with their before and after values, and a timestamp of when the snippet was last seen. Previous results are stored for 90 days per URL.","failureModes":["URL is unreachable or returns a non-200 status","No previous result exists for this URL (first call returns changed=false or null baseline)","Snippet selector yields no content on the page","Rate limiting or payment failure prevents the check","Page content is behind authentication or anti-bot measures","Result older than 90 days has been purged, resetting the baseline"],"whenToPreferThis":"Use this endpoint when you need lightweight, scheduled change detection on a specific webpage snippet without scraping the entire page. It is ideal for polling tasks where you want a stateful before/after comparison automatically managed server-side (90-day history), avoiding the need to store previous snapshots yourself. Prefer it over full-page scrapers when you only care about whether a targeted section changed, not a full content extraction.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:10:23.238Z","isFirstParty":false}