> For the complete documentation index, see [llms.txt](https://wiki.cygnus.finance/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.cygnus.finance/whitepaper/cygnus-omnichain-liquidity-validation-system-lvs/cygnus-lvs-integration/cgusd-v1/protocol-mechanics/bridge.md).

# Bridge

Users can transfer wcgUSD between different chains. Currently, Cygnus utilizes Axelar Network for cross-chain communication, and when users engage in cross-chain transactions, they are required to pay Axelar Network a certain fee in the native token of the source chain.

Here are the details of the cross-chain fees:

<table data-full-width="false"><thead><tr><th>Network</th><th>Waiting Time</th><th>Fee Components</th><th>Payment Currency</th></tr></thead><tbody><tr><td>Ethereum</td><td>20 mins</td><td>Cross-Chain Fees</td><td>USDC/USDT</td></tr><tr><td>Arbitrum</td><td>30 mins</td><td>Cross-Chain Fees</td><td>USDC/USDT</td></tr><tr><td>Optimism</td><td>30 mins</td><td>Cross-Chain Fees</td><td>USDC</td></tr></tbody></table>