Across Protocol Price

Across Protocol (ACX) is a cryptocurrency launched in 2021. It anchors a decentralized optimistic bridge that transfers assets between Ethereum mainnet and its layer-2 rollup chains without the typical withdrawal delays.

The protocol solves the core DeFi problem of fragmented liquidity and slow finality. By maintaining a single unified liquidity pool and a competitive open relay system, it eliminates slippage and reduces cost for cross-chain transfers. Users can move funds from Arbitrum or Optimism to Ethereum in under two minutes, a process that otherwise requires seven days via native rollup bridges.

Across Protocol operates on the Ethereum network. Its security model does not rely on a standalone blockchain consensus but on UMA’s optimistic oracle. Bonded relayers front liquidity and earn fees; the oracle resolves disputes and slashes dishonest participants.

Smart contracts power the bridge across multiple EVM chains, including Arbitrum One, Optimism, Polygon, and Boba. The ACX governance token is an ERC-20 asset on Ethereum mainnet. A single-sided liquidity pool design allows liquidity providers to deposit one asset and earn fees without exposure to impermanent loss from paired assets, while relayers compete off-chain to deliver the fastest fill prices.

The bridge emerged from the UMA ecosystem in October 2021, built by the same core developers who created the oracle that secures it. Originally designed to shorten the seven-day exit window from optimistic rollups, Across quickly integrated with major L2 networks. Early liquidity provisioning concentrated on Arbitrum and Optimism, where demand for instant exits was most acute.

The project targets a DeFi landscape in which value moves across rollups as quickly as it does within a single chain. Its design treats cross-chain messaging as a solvable verification problem rather than a trust problem. By decoupling security from speed, Across aims to make layer-2 ecosystems feel indistinguishable from a unified execution environment.

ACX operates as both a governance lever and a bonding instrument. Holders vote on system parameters such as oracle dispute windows and fee splits. Simultaneously, any entity wishing to serve as a relayer must post an ACX bond, which can be forfeited if the relayer submits an invalid fill. This dual utility ensures that those with the power to direct the protocol also have skin in the game.

Relayers lock ACX to gain the right to fulfill transfer requests, earning a portion of the bridge fees in return. Governance activists stake or delegate tokens to shape the protocol’s evolution, with voting weight proportional to their commitment. Liquidity providers, while not required to hold ACX, often acquire it to influence parameters that affect pool yields.

Across Protocol has a maximum supply of 1,000,000,000 tokens. Currently, 704,657,633 ACX are in circulation. With a market capitalization of $30,560,216, Across Protocol ranks #669 among all cryptocurrencies.