{"uid":"cap_rbU3nwrKOUFxrn-uEZAdu","slug":"price-extract-watch-bc20bc03","name":"price-extract-watch","description":"Change watch for price extract: 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 price extraction from a page changes. $0.01 per check.","url":"https://intel.rallylive.ca/watch/site/prices","method":"GET","headers":{},"bodySchema":{"type":"object","$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_TN4r2WcYRPAnNvMJL6YYy","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 price data extracted from a webpage and reports whether it has changed since the last check, including before/after field diffs.","exampleAgentPrompt":"Keep an eye on the pricing page at https://example.com/product/widget and let me know if any prices change compared to last time you checked — show me exactly which fields changed and what the old and new values are.","exampleUseCases":[{"title":"Competitor pricing surveillance","prompt":"Watch the pricing page at https://rivalstore.com/pricing every hour and tell me the moment any price changes — I want to see exactly which plan prices went up or down and by how much."},{"title":"E-commerce product price alert","prompt":"Check https://shop.example.com/product/123 for me and tell me if the price is different from the last time it was checked, including what it was before and what it is now."},{"title":"SaaS subscription plan monitoring","prompt":"Monitor https://software.io/plans for any changes to their subscription prices — if anything changes, show me the before and after values so I can update our competitive analysis."}],"resultDescription":"Returns the current price extraction result from the page, a boolean 'changed' flag indicating whether any price data differs from the previous call for the same URL, a list of exactly which fields changed with their before and after values, and a timestamp of when the data was last seen. Results are retained for 90 days per URL.","failureModes":["URL is inaccessible or returns a non-200 status — extraction fails with an error","No previous result exists for the URL — first call returns current data with changed=false or null diff","Page has anti-scraping measures that block price extraction","Price data is rendered client-side via JavaScript and cannot be statically extracted","Stored comparison result has expired after 90 days, losing diff baseline"],"whenToPreferThis":"Choose this endpoint when you need to detect changes in price data specifically extracted from a webpage, as opposed to monitoring general page content or non-price fields. It is ideal for scheduled agent workflows where you want structured diff output (changed fields with before/after values) rather than a raw snapshot. Prefer it over generic change-watch tools when the target page contains pricing information you want to track with minimal per-check cost ($0.01/check).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:12:23.568Z","isFirstParty":false}