A public blockchain testnet (Chain ID 4638) using LPB, QaUser3387 enables low-risk developer testing and pre-production validation in a cost-efficient, isolated sandbox.
QaUser3387 is a testnet network for the cross-chain bridge, used to validate bridge flows before mainnet release. It enables end-to-end testing of deposits/withdrawals, cross-chain messaging, relayer behavior, and wallet/SDK integrations without impacting production. Transactions pay gas in the native LPB currency.
QaUser3387 is a dedicated testnet focused on bridge-specific scenarios, allowing iterative testing and frequent upgrades without mainnet risk. Its LPB-denominated fee market helps estimate gas costs for bridging while isolating economic exposure from real assets. For performance comparison, monitor average gas cost (in LPB), block speed, TPS, and network activity via your RPC/explorer—official benchmark figures for these metrics are not publicly published for this testnet.
QaUser3387 uses LPB as the gas token for transaction fees. You can obtain LPB by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge LPB to QaUser3387, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select QaUser3387 as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on QaUser3387 you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.
To add QaUser3387 to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.
To send LPB on QaUser3387, ensure your wallet is connected to the QaUser3387 network, enter the recipient's address, specify the amount of LPB to send, review the gas fee, and confirm the transaction in your wallet.