{"uid":"cap_ZkPQQ2DKacNEFOxfqkxmK","slug":"extract-emphasis-as-json-change-watch-8ebba642","name":"Extract Emphasis as JSON - Change Watch","description":"Change watch for extract emphasis as json: runs the check, compares it with the result from your previous call for the same url (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. $0.02 per check.","url":"https://page.intel.rallylive.ca/watch/page/emphasis/json?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_VGGwZNfeCu7IMYwTx4iYo","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 web page's extracted emphasis elements for changes, returning current values, a changed flag, before/after diffs, and last-seen timestamp.","exampleAgentPrompt":"Keep an eye on the emphasized text (bold and italic) on https://example.com/pricing — let me know the moment anything changes compared to last time you checked, and show me exactly what changed.","exampleUseCases":[{"title":"Monitor competitor pricing callouts","prompt":"Watch the emphasized text on our competitor's pricing page at https://rival.com/pricing and alert me whenever something changes — I want to see the before and after values."},{"title":"Track regulatory notice emphasis changes","prompt":"Check whether the bolded or italicized text on https://regulator.gov/notices/current has changed since the last time you looked, and tell me exactly which fields are different."},{"title":"Detect updated product feature highlights","prompt":"Is the emphasized content on https://softwarevendor.com/features different from last check? Show me the changed flag and what the before and after values were."}],"resultDescription":"Returns a JSON object containing the current extracted emphasis elements from the page, a boolean 'changed' field indicating whether content differs from the previous call, an array of changed fields each with before/after values, and a timestamp of when the page was last seen. Results are compared against a stored snapshot retained for 90 days.","failureModes":["URL is unreachable or returns a non-200 status — extraction fails, no comparison performed","No prior snapshot exists (first call) — 'changed' may be null or false with no before/after diff","Snapshot older than 90 days has been purged — treated as a fresh first call","Page returns no emphasis elements — empty result set returned","Payment not received (x402) — request blocked before execution"],"whenToPreferThis":"Choose this endpoint when you need to detect whether the emphasized text (bold, italic, or otherwise highlighted content) on a specific web page has changed since the last check, and want structured before/after diffing without building your own comparison logic. Ideal for scheduled polling workflows where a human or agent needs to be alerted to emphasis-level content changes rather than full page diffs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:32:31.491Z","isFirstParty":false,"canonicalSlug":"extract-emphasis-as-json-change-watch-8ebba642"}