{"uid":"cap_6Qk9elOTI9Om0_yBnWXIh","slug":"signal-forge-studio-offer-change-check-24d583b4","name":"Signal Forge Studio - Offer Change Check","description":"Signal Forge Studio makes printable wall art and small digital kits for online sellers.","url":"https://signalforgestudios.com/x402/offer-change-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"data":{"status":"baseline_created","changes":[],"snapshot":{"url":"https://example.com","ctas":[],"offers":[],"prices":[],"version":1,"final_url":"https://example.com","headlines":[],"captured_at":"2026-09-22T00:00:00Z","html_truncated":false},"limitations":["Caller retains snapshots. No background monitoring."]},"meta":{"example_only":true},"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_8QTMQwzd_8fsl7Sqyg5Lp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Takes a snapshot of a public URL's offers, prices, CTAs, and headlines, then detects changes from a previously established baseline.","exampleAgentPrompt":"Can you take a snapshot of https://signalforgestudios.com/products and check whether the offers, prices, or CTAs have changed from the last baseline I set?","exampleUseCases":[{"title":"Etsy listing offer monitoring","prompt":"Check if the offers and prices on my Etsy shop landing page at https://myetsyshop.etsy.com have changed since I last set a baseline — I want to know if anything shifted in the CTAs or pricing."},{"title":"Competitor landing page change detection","prompt":"Snapshot https://competitorstore.com/sale and tell me if their headline, prices, or call-to-action buttons are different from the baseline we captured last week."},{"title":"Sales page integrity verification","prompt":"I need to verify that my digital product sales page at https://mysellerkits.com/offer still shows the correct pricing and offer phrases — can you compare it against the existing baseline and flag any changes?"}],"resultDescription":"Returns a JSON object indicating the change status (e.g. 'baseline_created' or changes detected), a list of detected changes, and a full snapshot of the URL including offers, prices, CTAs, headlines, final URL, capture timestamp, and whether HTML was truncated. Note: the caller is responsible for retaining snapshots; no background monitoring is performed.","failureModes":["URL is inaccessible or returns a non-200 status — snapshot cannot be captured","Page requires authentication or blocks automated access — content may be empty or incomplete","No prior baseline exists — first call creates a baseline rather than comparing","HTML content is too large and gets truncated — some offers or prices may be missed","Dynamic JavaScript-rendered content may not be captured if the crawler does not execute JS"],"whenToPreferThis":"Use this endpoint when you need a lightweight, on-demand check of whether a specific public URL's offers, prices, CTAs, or headlines have changed since a previously established baseline. Ideal for online sellers, marketers, or agents that need point-in-time change detection without setting up continuous background monitoring infrastructure. Best when the caller manages their own snapshot history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:32:07.358Z","isFirstParty":false,"canonicalSlug":"signal-forge-studio-offer-change-check-24d583b4"}