> For the complete documentation index, see [llms.txt](https://xai-foundation.gitbook.io/xai-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xai-foundation.gitbook.io/xai-network/~/changes/TieONXPo3G91dLSqRpEI/xai-odyssey/arbitrum.md).

# Arbitrum

Since Xai is built on Arbitrum, the team at Offchain Labs has deployed a testnet bridge that allows Xai Odyssey participants to bridge testnet ETH from Arbirum Goerli to Xai Testnet.

You can access the bridge here: <https://bridge.arbitrum.io/?l2ChainId=47279324479>

For more information on how to use the bridge, click [**here**](/xai-network/~/changes/TieONXPo3G91dLSqRpEI/xai-testnet/bridge-testnet-eth-from-arbitrum-goerli-to-xai-testnet.md).