Introduction
Across is bringing its superfast bridging experience to one of the most popular chains in web3.
Drum roll: Across is live on BNB Smart Chain (BSC).
With over 100 million users, BSC is the chain of choice for crypto users all over the world. From trading and gaming to DeFi and payments, BSC powers one of the most vibrant ecosystems in web3.
Now you can enjoy fast, cheap, and secure crosschain bridging to one of the largest and most active crypto ecosystems in seconds with zero friction.
Mass Adoption Meets Mass Liquidity
BSC is home to a global user base that spans geographies, languages, and use cases. Across is on a mission to make blockchains more usable, accessible, and efficient.
With this BSC launch, Across is taking another step towards meeting users where they are and empowering them to go wherever they want.
This integration unlocks:
Superfast bridging to and from Ethereum: Bridge crypto between BSC and Ethereum mainnet, and other supported L2s in seconds. No long wait times or confirmation delays.
Smarter, cheaper routing: Across uses Intents and efficient relayer rebalancing on the Binance CEX to improve capital efficiency and lower bridging costs. This architecture unlocks low-fee transfers, even at scale.
Trust-minimized security: Across enables crosschain transfers with ironclad security guarantees and no centralized trust assumptions.
However, this integration goes beyond crypto bridging for end users to unlock crosschain superpowers for builders.
Build Crosschain Applications on BSC
In addition to providing an industry-leading bridge for users, Across also serves as a plug-and-play crosschain engine for builders.
As a developer, you can integrate Across to embed crosschain actions directly into your applications. Popular actions include crosschain DeFi deposits, swaps, NFT minting, and more. Whether you're building on BSC or expanding to it, Across lets you abstract away complex bridging logic and focus on the user experience.
When you integrate Across, you can:
Embed 1-click crosschain actions: Let users deposit, stake, swap, or interact with protocols on other chains without ever leaving your dApp.
Simplify onboarding flows: Abstract away the need for users to bridge manually before engaging with your application. Across handles all the crosschain complexity under the hood so your users can enjoy a frictionless UX.
Support multiple chains by default: Across’ expanding list of supported chains, including Ethereum, L2s, and now BSC, allows you to go multichain without re-architecting your apps.
Across's SDK and contracts are permissionless, open-sourced, and optimized for speed, security, and ease of integration. In today’s thriving multichain landscape, it’s easier than ever to build apps that meet modern user needs.
Built Different: The Tech Behind Across’ BSC Bridge
So, how does the integration work? We’re glad you asked.
At the core of Across is a powerful Intents-based architecture: a model that empowers users to express what they want to do (e.g., "bridge 500 USDC from Ethereum to BSC") without needing to manage the step-by-step execution. Once a user initiates an Intent, Across' decentralized network of independent relayers competes to fulfill it as quickly and cheaply as possible.
This architecture allows for:
Fast fulfillment: Users receive funds in seconds, often long before final settlement is complete.
Low costs: Relayer competition and capital efficiency lead to negligible bridging fees.
Flexible design: Builders can embed complex crosschain operations with a single action.
Efficient verification: Claims about fulfilled transfers are aggregated and submitted onchain, where they are verified using UMA’s optimistic oracle.
Meanwhile, relayers rebalance capital via Binance CEX, keeping costs low at scale. The result: efficient capital movement without the gas fee headaches.
This modular approach decouples execution from settlement, enabling a more secure and scalable crosschain experience. By combining Intents with UMA for settlement, Across delivers verifiable, trust-minimized bridging without relying on centralized infrastructure.
Across uses an Intents-based system to power crosschain bridging between BSC and other chains.
Why This Matters
BNB Smart Chain is the gateway to crypto for millions of users worldwide. By adding support for BSC, Across makes it easier for those users to participate in the broader Ethereum ecosystem and for Ethereum-native users to access BSC’s thriving apps, communities, and opportunities.
Whether you’re a builder launching your dApp on BSC or a user looking to move capital efficiently, bridging with Across means one thing: speed without compromise.
This is a major step toward a unified, cross-chain future, one where you don’t have to think about which chain you’re on because it all just works.
Bridge to BNB Smart Chain with Across Today
Ready to bridge to BNB Smart Chain?