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

# Sandbox Environment

# Sandbox

The Issuing API sandbox environment provides a few conveniences to make development, inspecting, and experimenting with the API easier.

## Bypass Signature Verification

In the sandbox environment, authentication without signature verification can be performed simply with HTTP Basic Authentication. To make a request using this convenience method, simply pass your access key directly into the username field, no password or signature is required.

<CodeGroup>
  ```shell Shell theme={null}
  curl -H "Accept: application/json" \
  	-u $MY_ACCESS_KEY: https://sandbox.access.utgl.io/v1/ping
  ```
</CodeGroup>

When the header `Authorization: Bearer` is present in a request, request signature verification is enforced as normal.

In production environment, request signing via `Bearer` token is required.

***

* [Table of Contents](#)
* * [Sandbox](#sandbox)
    * [Bypass Signature Verification](#bypass-signature-verification)