A developer-focused testnet blockchain for safely validating dApps and smart contracts, identified by Chain ID 72877 and using ZAG for low-cost transactions.
QaUser4 Testnet is a non-production blockchain network used by the cross-chain bridge for integration, QA, and developer sandboxing. It uses ZAG as the native gas currency (faucet/test funds) so teams can safely deploy and exercise smart contracts, wallets, and bridge routes. Primary use cases include testing cross-chain transfers, fee/nonce handling, and monitoring relayer/oracle behavior before mainnet.
Unlike open public testnets, QaUser4 is a controlled, bridge-aligned staging network with configurations that can change per release (state resets, allowlisting, and tuning for rapid iteration and low fees), and it has no public info URL. As of Sep 2025, no official explorer or docs publish performance metrics; average gas cost, block time, TPS, and activity levels are unpublished and variable, so they should not be used for benchmarking against mainnets.
QaUser4 Testnet uses ZAG as the gas token for transaction fees. You can obtain ZAG by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge ZAG to QaUser4 Testnet, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select QaUser4 Testnet as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on QaUser4 Testnet 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 QaUser4 Testnet 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 ZAG on QaUser4 Testnet, ensure your wallet is connected to the QaUser4 Testnet network, enter the recipient's address, specify the amount of ZAG to send, review the gas fee, and confirm the transaction in your wallet.