> For the complete documentation index, see [llms.txt](https://docs.unstable.run/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.unstable.run/for-users/get-usdt0.md).

# Getting USDT0

Unstable needs a small amount of **USDT0** in your Stable-chain wallet before you can trade or launch. USDT0 is both the gas token and the trading currency, so once you have it, you're set.

## The two paths in

### 1. Bridge from another chain (recommended)

The Stable ecosystem uses **LayerZero-based bridges** for cross-chain USDT/USDT0 flow. From most major chains (Ethereum, BSC, Arbitrum, Polygon, Base), the flow is:

1. Open a supported bridge — see the [Stable docs](https://docs.stable.xyz) for the current list.
2. Pick your source chain and USDT amount.
3. Destination: **Stable**.
4. Confirm on your source chain. Wait \~1-3 minutes for delivery.

That's it. USDT0 lands in your Stable wallet.

### 2. Buy on a CEX and withdraw

If a centralised exchange (CEX) has direct Stable-chain withdrawal support, use it. This gets more common as Stable's ecosystem grows.

{% hint style="info" %}
Not every CEX supports Stable withdrawal yet. When in doubt, bridge from a chain the CEX definitely supports (Ethereum, BSC) using path #1.
{% endhint %}

## How much do you need?

| What you want to do                  | Minimum USDT0                                     |
| ------------------------------------ | ------------------------------------------------- |
| Buy a small bag of a live token      | Whatever you want to spend + a few cents for gas. |
| Launch a coin with no initial buy    | $2 (deploy fee) + \~$0.02 for gas.                |
| Launch a coin with a $50 initial buy | $52 total.                                        |

Gas on Stable is comically cheap — you'll never spend more than a couple of cents per transaction.

## Checking your balance

Two places to look:

1. **Your wallet** — shows USDT0 native balance (18 decimals, appears as e.g. `12.34 USDT0`).
2. **The Unstable trade panel** — displays `Balance: 12.34 USDT` directly above the amount input when you're connected.

Both should agree. If they don't, your wallet may be reading from a stale RPC — force refresh with `Ctrl + R`.

## Native gas vs ERC-20 side

You may notice in your wallet that USDT0 shows up **twice**:

* Once as the network's native currency (like ETH on Ethereum).
* Once as an ERC-20 at `0x779Ded0c9e1022225f8E0630b35a9b54bE713736`.

Both interfaces read from the same on-chain balance — the amount is identical. Unstable uses the ERC-20 side for anything that involves Uniswap V3 (approvals, swaps, deploy fee). Wallet transfers to friends can use either.

## Next

* [Buying & selling](/for-users/buy-sell.md) — spend your fresh USDT0 on a token
* [Launch your own coin](/launching-a-coin/overview.md) — use the $2 deploy fee


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