# SANDBOX environment.

To test the basic operations of the API, you can use the following API endpoint in our UAT environment:

#### Test endpoint UAT

```
https://test-admin.securecontainerrelease.com:4430/legacy/tmining/api/v1
```

{% hint style="info" %}
Please note: 

* These endpoints do not use authentication, so you can use them without tokens, but in a production environment you should enable authentication
* This also means this data is visible to other companies that are testing in the UAT environment, so please do not add sensitive data
  {% endhint %}

You can retrieve a list of releases using the GET [/releases-endpoint ](/api-reference/releases.md)and start from there

<figure><img src="/files/i0MKbeoLl8YT2sxNaqAf" alt=""><figcaption></figcaption></figure>

#### Postman collection

To allow you to test the whole flow we also have a Postman collection that contains endpoints to do all operations on test releases. This can be obtained from support by emailing <support@securecontainerrelase.com>

<details>

<summary>The Postman collection contains a large list of endpoints</summary>

![](/files/lgb1J5zsrtslpnHqSGaZ)

</details>

{% hint style="info" %}
**It is however important that you follow a basic flow:**

1. A release is created by the carrier
2. By using the “Carrier - Transfer a release” endpoint, you transfer the release to the test

   organization
3. Afterwards the test organization can do a number of transactions using the endpoint

   without “Carrier” in the description
   {% endhint %}

<figure><img src="/files/nv28BuhVTa8bc4ukWXCr" alt=""><figcaption></figcaption></figure>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.securecontainerrelease.com/getting-started/testing-and-sandbox/sandbox-environment..md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.