Gravity Alpha Testnet Sepolia is a Sepolia-based environment for the Gravity cross-chain bridge that uses G as the native gas token. It enables developers to test asset bridging and cross-chain messaging with EVM contracts, relayers, and fee logic before mainnet. Performance mirrors Sepolia for realistic benchmarking—~12s block time, ~15 TPS baseline, and faucet-funded G making average gas effectively near-zero for simple transfers—so teams can validate latency and throughput without real costs.
It is purpose-built for cross-chain bridge workflows rather than being a generic EVM testnet, with tooling to trace end-to-end messages and to safely test replay protection and failure modes under controlled limits. Its G-denominated fee market isolates testing from Sepolia-ETH price swings, keeping average gas negligible while confirmations track Sepolia’s cadence (~12s blocks; activity is bursty during coordinated test waves rather than sustained high TPS), making results easy to compare against other networks.
Gravity Alpha Testnet Sepolia uses G as the gas token for transaction fees. You can obtain G by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge G to Gravity Alpha Testnet Sepolia, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Gravity Alpha Testnet Sepolia as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Gravity Alpha Testnet Sepolia 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 Gravity Alpha Testnet Sepolia 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 G on Gravity Alpha Testnet Sepolia, ensure your wallet is connected to the Gravity Alpha Testnet Sepolia network, enter the recipient's address, specify the amount of G to send, review the gas fee, and confirm the transaction in your wallet.