Oasis Sapphire Testnet is the public network for Sapphire, a confidential EVM ParaTime on Oasis that executes smart contracts inside trusted hardware so inputs, state, and outputs remain encrypted while retaining full Ethereum tooling compatibility. It’s used to build and test privacy-preserving DeFi and MEV‑resistant order flow, gaming with secure on‑chain randomness, private identity/RWA/NFT logic, and cross‑chain dApps before mainnet launch. Performance snapshot: free TEST gas (near‑zero cost), ~6s block times, and hundreds‑TPS capacity (throughput and activity vary by load), delivering faster, cheaper execution than Ethereum L1.
Unlike typical EVM L1s/L2s, Sapphire provides native confidentiality by running contracts in Trusted Execution Environments, keeping transaction payloads and state encrypted end‑to‑end and out of public mempools to mitigate MEV. It maintains 1:1 Ethereum compatibility while adding secure on‑chain randomness and confidentiality precompiles, with low fees (fractions of a cent on mainnet; free TEST on testnet), ~6s blocks, and hundreds‑TPS scalability—combining L2‑like performance with privacy not available on most networks.
Oasis Sapphire Testnet uses TEST as the gas token for transaction fees. You can obtain TEST by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge TEST to Oasis Sapphire Testnet, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Oasis Sapphire Testnet as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Oasis Sapphire 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 Oasis Sapphire 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 TEST on Oasis Sapphire Testnet, ensure your wallet is connected to the Oasis Sapphire Testnet network, enter the recipient's address, specify the amount of TEST to send, review the gas fee, and confirm the transaction in your wallet.