Across Protocol

Across Protocol is a crosschain bridge for moving tokens between blockchains. It connects the Ethereum mainnet with several layer-2 networks and is aimed at crypto users and at applications that want bridging built in.

What Across Protocol offers

• Token transfers — moves assets between supported chains and Ethereum mainnet.
• Token swaps — lets users exchange tokens as part of a crosschain transfer.
• Fast settlement — the protocol says most transfers reach the recipient's wallet within about two seconds of confirmation.
• Integration for developers — other applications can call a published set of parameters covering trade type, amount, and origin and destination chain identifiers.

Who it works with

The protocol serves everyday crypto users and application builders. Uniswap is named as one integrator, using Across to offer crosschain transfers inside its own app so users need not switch to a separate bridge.

Key facts

• Type: crosschain bridge protocol
• Networks: Ethereum mainnet and various layer-2 chains
• Security record: the protocol states that no user funds have been lost in its transfers to date