Bridge BTC Between Bitcoin and Via

Learn how to bridge your assets between Bitcoin Testnet4 and VIA Alpha Testnet.

The Via Alpha Testnet is fully equipped to support BTC deposits and withdrawals through a simple and intuitive Via Bridge. This is the recommended interface for interacting with the network during the Alpha phase.

🧩 Required Wallets

To use the bridge, you’ll need to install and connect the following wallets:

Install Xverse Wallet on your browser or mobile device.

Xverse Wallet

🔧 Setting Up Xverse Wallet for Testnet 4 for our Alpha Testnet

You need to configure the Xverse wallet properly to bridge BTC between Bitcoin Testnet4 and the VIA Alpha Testnet.

⚙️ Configure Xverse Wallet for Testnet4

Open Xverse Wallet
- Go to your browser extension or app.
- Unlock your wallet.
Access Network Settings
- Click on the settings icon.
- Go to Network settings.
Select “Testnet4”
- Choose the “Testnet4” option from the list.
Set Custom URLs Fill in the fields as shown below:
Stacks URL:
```
https://api.testnet.hiro.so
```
BTC URL:
```
https://btc-testnet4.xverse.app
```
Fallback BTC URL:
```
https://mempool.space/testnet4/api
```
Click "Save" After entering all the URLs correctly, click Save.

Once you’ve completed these steps, your Xverse Wallet will be fully connected to Bitcoin Testnet3, allowing you to interact with the VIA Alpha Testnet bridge for BTC deposits and withdrawals.

Make sure to only use testnet BTC with this configuration.

Required to sign and broadcast Bitcoin Testnet3 transactions (deposits).
VIA Bridge UI Deposit
Used to provide your Bitcoin Testnet4 address for receiving tBTC on L1.
Xverse Wallet address
Xverse Wallet Chrome Extension

MetaMask Wallet

Required to sign and broadcast VIA Testnet transaction (withdrawals).
VIA Bridge UI Withdrawal
Used to provide your VIA Testnet (EVM) address for receiving L2 funds.
MetaMask Wallet
MetaMask Wallet Chrome Extension