{"resource":"https://fetchdelta.com/api/diff","service":null,"areas":["web_search"],"answering":true,"http_status":402,"latency_ms":235,"price_usdc":0.004,"buyers_30d":4,"calls_30d":4,"description":"FetchDelta: compare one public web page with its previous stored snapshot. Returns added/removed lines and change previews. The first call creates a baseline; later calls share that URL baseline across buyers. Use page-watch-30d for a priva","id":"8888da73bdd7","category":"Web page readers and scrapers","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/8888da73bdd7"}