# How to Enable USDT (TRC-20, ERC-20) in Fireblocks Sandbox?

**URL:** <https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309>\
**Category:** Developer Discussion\
**Created:** [March 18, 2025, 7:53am UTC](https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309 "2025-03-18T07:53:00Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![LeeSeungsoo](https://avatars.discourse-cdn.com/v4/letter/l/ea5d25/32.png) [@LeeSeungsoo](https://community.fireblocks.com/u/LeeSeungsoo)\
**Post date:** [March 18, 2025, 7:53am UTC](https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309/1 "2025-03-18T07:53:00Z")

</div>

Hello Fireblocks Team,

I am currently testing in the Fireblocks Sandbox environment and need to enable USDT on both TRC-20 (Tron) and ERC-20 (Ethereum) networks. However, when I try to create a new wallet, I only see test assets like “TRX\_TEST” and “USD Coin Test (Tron),” but USDT (TRC-20, ERC-20) is not available.

Could you please provide guidance on:

1. How to enable USDT (TRC-20, ERC-20) in the sandbox?
2. If it is not listed, is there a way to manually add it?
3. Does the sandbox environment support TRC-20 transactions at all?

Any documentation or steps would be greatly appreciated. Thank you!

Best regards,

---

<div class="post-metadata">

**Author:** ![yoji](https://avatars.discourse-cdn.com/v4/letter/y/977dab/32.png) [@yoji](https://community.fireblocks.com/u/yoji)\
**Post date:** [March 18, 2025, 1:51pm UTC](https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309/2 "2025-03-18T13:51:44Z")

</div>

Hi @LeeSeungsoo – the Sandbox environment only supports testnet assets. Mainnet assets like USDT will only be available in production workspaces.

---

<div class="post-metadata">

**Author:** ![LeeSeungsoo](https://avatars.discourse-cdn.com/v4/letter/l/ea5d25/32.png) [@LeeSeungsoo](https://community.fireblocks.com/u/LeeSeungsoo)\
**Post date:** [March 20, 2025, 2:44am UTC](https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309/3 "2025-03-20T02:44:51Z")

</div>

I am currently testing in the **Fireblocks Sandbox environment** and would like to know if it supports **TRON’s testnets: Shasta and Nile**.

Specifically, I would like to ask:

1. **Can I use the Shasta or Nile testnet within the Fireblocks Sandbox?**
2. **If not, is there any way to connect Fireblocks to these testnets for testing purposes?**
3. **Are there any alternative ways to test TRON transactions within the sandbox?**

It would be very helpful if you could provide documentation or guidance on this.

Thank you!

---

<div class="post-metadata">

**Author:** ![yoji](https://avatars.discourse-cdn.com/v4/letter/y/977dab/32.png) [@yoji](https://community.fireblocks.com/u/yoji)\
**Post date:** [March 22, 2025, 4:41pm UTC](https://community.fireblocks.com/t/how-to-enable-usdt-trc-20-erc-20-in-fireblocks-sandbox/2309/4 "2025-03-22T16:41:41Z")

</div>

@LeeSeungsoo – certainly! We support the Shasta testnet for Tron. You can [add the Shasta TRX wallet](https://support.fireblocks.io/hc/en-us/articles/4417753190674-Asset-wallets#:~:text=asset%20wallets.-,Creating%20a%20new%20asset%20wallet,-To%20create%20a) through the console or API (asset ID will be `TRX_TEST`). Adding TRC/ERC20 assets is supported through the sandbox as well, [instructions here](https://support.fireblocks.io/hc/en-us/articles/6641659764508-Adding-non-EVM-assets-to-a-workspace).