> For the complete documentation index, see [llms.txt](https://docs.akto.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.akto.io/api-security-testing/how-to/play-in-test-editor-playground.md).

# Play in Test Editor Playground

Play in Test Editor Playground Akto Test Editor allows you to create and customize API security tests. It gives you access to over 100 built-in tests and uses YAML for easy writing and understanding. It also lets you test against a sample API for real-time feedback. This is perfect for both finding prebuilt security tests and creating custom ones.

In the demonstration below, we use Akto's Test Editor to run a pre-built test against the **`rest/captcha`** endpoint of the **`juice_shop_demo`** collection to detect any potential vulnerabilities within the API.

{% embed url="<https://demo.arcade.software/Ycj79fXnQDV0NabTgrHC?embed=>" %}
Play in Test Playground
{% endembed %}

In the above demonstration, we ran a pre-built test against the **`rest/captcha`** endpoint of the **`juice_shop_demo`** collection and observed that the selected endpoint has high vulnerabilities.