web.monitor.create
2 个工具都能做这件事：价格、是否已验证、端点并排，其中任意一个都能调用，按次计费。
- 创建定时页面监控2.8–16.8 积分/成功在已连接的账号上安排周期性页面抓取与变更检测。
- Watch a page: describe the change to report免费Say in plain words what you care about, for example "tell me when a plan gets more expensive", "a new job in Berlin" or "back in stock". The monitor turns your sentence into conditions, ignores every change that does not match (layout, dates, banners), and reports only matching changes as facts: what changed, from what, to what, with both versions of the page. Numbers work too: "the Business plan costs more than $250". On treg's key it runs from your team's watch budget (crawl4ai.watch.budget.add).