World Chain is an Ethereum Layer-2 mainnet built with the OP Stack and secured by Ethereum, using ETH as its native gas. It enables human-centric apps via native World ID proof-of-personhood, powering use cases like World App payments, Sybil-resistant DeFi and lending, identity-gated airdrops, one-person-one-vote governance, and spam-resistant social/creator platforms.
What makes World Chain unique is its human-first design: a priority mempool and recurring gas allowances for verified World ID users reduce bot traffic and effective fees while preserving full EVM/Optimism Superchain composability. Performance is in line with OP Stack L2s—~2s block times, low gas costs often under a few cents for simple transactions, and tens to hundreds of TPS—paired with immediate distribution to millions of World App users, which drives high on-chain activity versus generic L2s.
World Chain 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 World Chain, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select World Chain as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on World Chain 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 World Chain 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 World Chain, ensure your wallet is connected to the World Chain network, enter the recipient's address, specify the amount of ETH to send, review the gas fee, and confirm the transaction in your wallet.