opBNB is BNB Chain’s Layer 2 (mainnet) built on the OP Stack that uses BNB for gas and posts rollup data to BNB Smart Chain, enabling sub‑cent fees (typically ~$0.001–$0.005), ~1‑second blocks, and 4k+ TPS headroom; it has recorded over 70M transactions in a single day. It targets high‑throughput, low‑cost use cases such as on‑chain gaming, SocialFi, micro‑payments, NFT minting/airdrops, and DeFi, especially apps needing frequent transactions and seamless bridging/liquidity with BNB Smart Chain.
opBNB is unique in pairing OP Stack EVM‑equivalence with BNB Smart Chain data availability, which cuts data costs versus many Ethereum L2s and delivers faster blocks (~1s), very low average gas (often <$0.005), and high throughput (>4k TPS design). It leverages BNB as the native gas token and deep BNB Chain liquidity, making Solidity dApps easy to port while demonstrating real‑world scale with sustained high activity (hundreds of TPS bursts and tens of millions of daily transactions).
opBNB uses BNB as the gas token for transaction fees. You can obtain BNB by bridging from other chains or purchasing using thirdweb Bridge.
To bridge BNB to opBNB, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select opBNB as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on opBNB 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 opBNB 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 BNB on opBNB, ensure your wallet is connected to the opBNB network, enter the recipient's address, specify the amount of BNB to send, review the gas fee, and confirm the transaction in your wallet.