> For the complete documentation index, see [llms.txt](https://noiho.gitbook.io/noiho/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://noiho.gitbook.io/noiho/developers/xmrn-across-chains.md).

# XMRn across chains

XMRn is a LayerZero OFT, so the same token exists on several chains at different addresses.

| Network | Chain            | Chain ID | XMRn address                               | LayerZero EID  |
| ------- | ---------------- | -------- | ------------------------------------------ | -------------- |
| Mainnet | HyperEVM         | 999      | 0x9cdcb9a823773c52345ad404444fccbcde23b2c3 | 30367          |
| Mainnet | Ethereum         | 1        | 0x0d14e6d1b102c18ae470b5b1614c19afd2ebe3a2 | 30101          |
| Mainnet | Arbitrum One     | 42161    | Not configured                             | Not configured |
| Testnet | HyperEVM Testnet | 998      | 0xd54D9d52A43d5BE9461619CF570f21068De46EE5 | 40362          |
| Testnet | Ethereum Sepolia | 11155111 | 0x8c1DdB39B899B0C2d8570dD6778B0B4f0199D067 | 40161          |
| Testnet | Arbitrum Sepolia | 421614   | 0xd26d69B936816B5659e62881a8872121C12411B1 | Not configured |

> **Warning: Mainnet and testnet OFTs are separate networks**
>
> A testnet endpoint ID can never route to a mainnet one. Sending across that boundary is not a slow transfer — it is an unroutable message.