# Circle CI

One useful way of monitoring the changes in your codebase is by adding annotations whenever your tests run. This handy Hosted Graphite webhook you can do just that!

### How to set up a CircleCI webhook

CircleCI’s documentation lists [how to edit your CircleCI configuration to add a new webhook url](https://circleci.com/docs/configuration#notify/).

To get your webhook URL from Hosted Graphite - Simply click the “Copy CircleCI webhook URL” button on the [add-ons](https://www.hostedgraphite.com/app/addons/) page, and add the URL to your circle configuration.

<figure><img src="https://495119770-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZtHmoGZNsmARIViZEdbz%2Fuploads%2FRsjpXqS72vT7WgQvMbQj%2Fimage.png?alt=media&#x26;token=41ebdf6a-9d2c-4e1c-8997-a3316813e024" alt=""><figcaption><p>CircleCI Webhook</p></figcaption></figure>

To see these events as [annotations](https://docs.hostedgraphite.com/api-guides/annotations-and-events-api#dashboard-annotations) on your graph, just enable them in your dashboard settings, and query by Tag:

<figure><img src="https://495119770-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZtHmoGZNsmARIViZEdbz%2Fuploads%2FNJBtDeSalp6ZMg4caljs%2Fcircleci-annotation.png?alt=media&#x26;token=27064fbe-5012-4b82-bc00-fa938089086c" alt=""><figcaption><p>CircleCI Annotation</p></figcaption></figure>