Testnet Guide
Practice trading on Brtr without risking real funds. This guide helps you get set up on testnet.
Testnet tokens have no real value. They're perfect for learning how Brtr works before trading with real assets.
Step 1: Get Testnet ETH
You'll need testnet ETH to pay for gas fees. Here are faucets for each supported testnet:
Most faucets have daily limits. If one faucet is dry, try another or wait 24 hours.
Step 2: Get Test Tokens
To trade on Brtr, you'll need some ERC-20 test tokens. Here are a few options:
Option A: Use Brtr Test Tokens
We've deployed test tokens on each testnet specifically for practicing:
| Token | Base Sepo | OP Sepo | Monad Testnet | MegaETH |
|---|---|---|---|---|
| BRTR Test | 0x... | 0x... | 0x... | TBD |
| USDC Test | 0x... | 0x... | 0x... | TBD |
Add Token to Wallet
- Copy the token address from the table above
- In MetaMask, click "Import Token"
- Paste the token address
- Click "Add Custom Token"
Mint Test Tokens
- Visit the test token faucet: faucet.brtr.world (opens in a new tab)
- Connect your wallet
- Select the token you want
- Click "Mint" (usually 1000 tokens per mint)
Option B: Use Existing Test Tokens
Many projects have deployed testnet versions of popular tokens:
- Uniswap Testnet Tokens
- Aave Testnet Tokens
- Various testnet USDC/USDT
Check each protocol's documentation for their testnet token addresses.
Step 3: Configure Networks
Make sure your wallet is configured for the testnets. If not, Brtr will prompt you to add them automatically, or add manually:
| Network | Chain ID | RPC URL | Explorer |
|---|---|---|---|
| Base Sepo | 84532 | https://sepolia.base.org | basescan.org (opens in a new tab) |
| OP Sepo | 11155420 | https://sepolia.optimism.io | optimism-sepolia (opens in a new tab) |
| Monad Testnet | 10143 | https://testnet-rpc.monad.xyz | monadexplorer (opens in a new tab) |
| MegaETH | TBD | TBD | TBD |
Step 4: Start Trading!
Once you have testnet ETH and tokens:
Create Your First Order
- Go to Create Order
- Select a token you want to offer
- Add payment options (try adding multiple chains!)
- Submit the order
Fill Someone Else's Order
- Browse the Discover (opens in a new tab) page
- Find an order that matches your tokens
- Click "Fill Order"
- Complete the trade
Testnet Contract Addresses
All testnet deployments use the same contract source code as mainnet, just deployed on test networks.
| Network | BrtrOTCV1 Address |
|---|---|
| Base Sepo | 0x... |
| OP Sepo | 0x... |
| Monad Testnet | 0x... |
| MegaETH | TBD |
Tips for Testing
- Try both roles — Create orders (as seller) and fill orders (as buyer) to understand both sides
- Test cross-chain — Create an order on one chain and fill it from another
- Test multiple payment options — Add 2-3 acceptable tokens when creating orders
- Watch the timeline — Cross-chain trades show progress through multiple steps
- Check the History tab — Track all your completed and pending trades
Need Help?
- Join our Discord (opens in a new tab) for live support
- Check the FAQ for common questions
- Report bugs on GitHub (opens in a new tab)