zkSync is an Ethereum Layer-2 zk-rollup on mainnet that uses validity proofs to inherit L1 security while delivering low fees and fast confirmations; ETH is the native gas. It’s used for low-cost DeFi, payments, NFTs, and gaming, with native account abstraction enabling sponsored transactions and ERC‑20 gas payments. For comparison, transactions typically cost cents (≈$0.01–$0.10), confirm in seconds (≈2–5s L2), and the network sustains tens to hundreds of TPS with peak bursts in the hundreds, supporting millions of unique addresses.
zkSync is unique for its native account abstraction (every account is a smart contract) and Paymasters, allowing gasless UX and ERC‑20 gas—features many L2s only emulate. It couples a zkEVM-compatible design and the Boojum prover with the ZK Stack (hyperchains) for high throughput and trust-minimized interoperability, enabling cheaper fees and faster L2 confirmations than L1 (often 10–100x cheaper, seconds vs minutes) while settling securely to Ethereum.
zkSync uses ETH as the gas token for transaction fees. You can obtain ETH by bridging from other chains or purchasing using thirdweb Bridge.
To bridge ETH to zkSync, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select zkSync as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on zkSync 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 zkSync 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 ETH on zkSync, ensure your wallet is connected to the zkSync network, enter the recipient's address, specify the amount of ETH to send, review the gas fee, and confirm the transaction in your wallet.
