> For the complete documentation index, see [llms.txt](https://docs.onelens.cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onelens.cloud/observe-visibility-and-insights/cost-watcher.md).

# Anomaly Watcher

Cost Watcher helps you stay on top of cost changes in your cloud environment. It tracks unexpected spikes, daily cost variations, and newly introduced resources that start incurring cost.

Cost Watcher is organized into three areas:

### [**Cost Anomaly**](/observe-visibility-and-insights/cost-watcher/cloud-cost-anomalies.md)

* Alerts you to sudden spikes in cost and shows which accounts, services, or regions are affected.

### [**Cost Delta**](/observe-visibility-and-insights/cost-watcher/cost-delta.md)

* Shows you how your cost has changed since the last update, broken down by account, service, region, or cost center.

### [**New Resources**](/observe-visibility-and-insights/cost-watcher/new-resources.md)

* Highlights any new resources that have started generating cost.

With Cost Watcher, you get a clear view of what’s changing in your cloud cost and where to focus next.


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