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Stable uses USDT0 as the gas token, so you need USDT0 in your wallet to submit transactions. This page covers two ways to fund a testnet wallet.

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Faucet

The faucet is the fastest way to get testnet USDT0 for basic development and testing.
  1. Visit https://faucet.stable.xyz.
  2. Connect your browser wallet or paste a wallet address.
  3. Select the button to receive testnet USDT0.
The faucet sends 1 USDT0 per request, which is enough to deploy and interact with several contracts.

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Verify your balance

Confirm the funds arrived: 
cast balance YOUR_ADDRESS --rpc-url https://rpc.testnet.stable.xyz
You should see a non-zero value. If the balance is still 0, wait a few seconds and re-run — Stable produces a new block roughly every 0.7 seconds, so funds settle quickly.

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Bridge from Sepolia (larger amounts)

If you need more USDT0 than the faucet provides, you can bridge Test USDT from Ethereum Sepolia to the Stable testnet.

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1. Mint Test USDT on Sepolia

Call the mint function on the Ethereum Sepolia Test USDT contract to get the desired amount.

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2. Bridge to Stable testnet

Send a cross-chain transfer to the LayerZero bridge contract on Ethereum Sepolia to bridge Test USDT to the Stable testnet. For the full bridge script and contract addresses, see Bridge USDT0 to Stable.
Last modified on April 16, 2026