> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Using our Sandbox

> An isolated Lerian environment that mirrors production behavior and powers the Try It experience inside the documentation for safe hands-on API testing.

The sandbox helps you explore Lerian’s APIs in a safe and predictable environment. It mirrors production behavior while keeping your real data untouched. Our documentation routes every request you send through this environment.

The sandbox powers the Try It experience. When you test an endpoint, the response you see comes from this environment. If you haven't seen how the Try It feature works yet, check out the [Using the Try It feature](/en/start-here/evaluate-and-deploy/using-try-it) page.

<Note>
  The sandbox is only available inside the documentation. You cannot access it directly through external tools.
</Note>

## Base URLs

***

These are the URLs the documentation uses behind the scenes when you test an endpoint:

| Service        | Sandbox Base URL                                                                                    |
| -------------- | --------------------------------------------------------------------------------------------------- |
| Midaz          | `https://ledger.sandbox.lerian.net`                                                                 |
| Access Manager | `https://auth.sandbox.lerian.net` (Auth APIs) `https://identity.sandbox.lerian.net` (Identity APIs) |
| CRM            | `https://midaz-crm.sandbox.lerian.net`                                                              |
| Fees Engine    | `https://fees.sandbox.lerian.net`                                                                   |
| Reporter       | `https://reporter.sandbox.lerian.net`                                                               |

All examples and test boxes in the docs already use these URLs.

## What you can do

***

The sandbox lets you:

* Run live requests from the documentation
* Inspect request and response structures
* Understand authentication headers and data formats
* Learn how each API behaves without setting up your own environment

<Tip>
  Click **Try It** on any endpoint to run a live request and check how the API responds.
</Tip>

## Limitations

***

The sandbox is designed for exploration. Some restrictions are intentional:

* It only works inside the documentation
* Data resets frequently
* Some endpoints use fixed or sample responses
* Some APIs can use simpler authentication rules

For full integration tests, use your own environment or reach out to our team to request a dedicated development space.