QI0603I3 is a sandbox testnet for the cross-chain bridge, using UQI as the native gas token with no monetary value. It’s used for end-to-end bridge flows, smart-contract and relayer testing, wallet/integration QA, and validating monitoring before mainnet. As of September 2025, there are no published performance figures (avg gas cost, block speed, TPS, or network activity), so treat performance as non-production and benchmark via RPC if you need comparisons.
What sets QI0603I3 apart is its purpose-built, isolated testnet design for bridge workflows—faucet-funded UQI, controlled resets/upgrades, and a predictable environment for failure-mode and throughput tests. This isolation reduces external noise versus public multi-project testnets, making gas-cost profiling and block-propagation studies more consistent for cross-chain scenarios. Until official metrics are released, expect variable block speed and TPS; capture your own avg gas price, TPS, and activity metrics for apples-to-apples comparisons with other networks.
QI0603I3 uses UQI as the gas token for transaction fees. You can obtain UQI by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge UQI to QI0603I3, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select QI0603I3 as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on QI0603I3 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 QI0603I3 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 UQI on QI0603I3, ensure your wallet is connected to the QI0603I3 network, enter the recipient's address, specify the amount of UQI to send, review the gas fee, and confirm the transaction in your wallet.