What is Across?
Across is a next-generation cross-chain bridge that combines optimistic verification with bonded liquidity to enable secure and near-instant transfers between blockchains. Unlike traditional bridges that can take hours for verification, Across provides:
- Instant guaranteed liquidity for cross-chain transfers
- Optimistic verification for enhanced security
- Lowest fees compared to other bridging solutions
- Support for major L2s including Arbitrum, Optimism, Polygon, and more
- Decentralized design with no single point of failure
How Across Works
Watch this video to understand Across's unique approach to cross-chain bridging that delivers both speed and security:
More Across Video Resources
Key Features of Across
Instant Guarantees
Receive immediate confirmation of your cross-chain transfer with Across's unique liquidity pool design.
Optimistic Verification
Security through delayed fraud proofs that don't slow down your transfers.
Bonded Liquidity
Liquidity providers back transfers with collateral, ensuring funds are always available.
Multi-Chain Support
Bridge assets between Ethereum mainnet and all major L2 solutions.
Competitive Fees
Pay significantly less than traditional bridging solutions.
Decentralized Design
No central operator controls funds or can censor transactions.
Across by the Numbers
Across vs Other Cross-Chain Bridges
| Feature | Across | Competitor A | Competitor B |
|---|---|---|---|
| Transfer Speed | Instant | 10-30 min | 20+ min |
| Fees | Lowest | High | Medium |
| Security Model | Optimistic + Bonded | MPC | Lock-Mint |
| Supported Chains | 25+ | 10 | 8 |
| Decentralization | Full | Partial | Centralized |
How to Use Across
- Connect your wallet to the Across interface
- Select source and destination chains for your transfer
- Choose the token and amount you want to bridge
- Review the estimated fee and transfer time
- Confirm the transaction in your wallet
- Receive funds on the destination chain within minutes
ACX Token Utility
The ACX token powers the Across ecosystem with several key functions:
- Governance - Vote on protocol upgrades and parameters
- Fee Discounts - Pay lower fees when using ACX
- Liquidity Mining - Earn ACX by providing bridge liquidity
- Staking Rewards - Earn a portion of protocol fees
- Security - Used as collateral by relayers