# Equipment Bridge (LayerZero)

The **LayerZero Equipment Bridge**  processes the cross-chain bridging of Pet and Equipment NFTs. It is available between **DFK Chain and Metis**, and between **Kaia and Metis** only.

{% hint style="info" %}
The Equipment Bridge is built in partnership with [Layer Zero](https://layerzero.network/) using their V2 Messaging protocol. For more information, visit their documentation at: <https://layerzero.gitbook.io/docs/>.

Use [Layer Zero Scan](https://layerzeroscan.com/) (<https://layerzeroscan.com/>) to track the progress of bridged items.
{% endhint %}

### Chain ID

Use the following destination Chain IDs for the Equipment Bridge:

* DFK Chain: `53935`
* Kaia: `8217`
* Metis: `1088`

### Fees

Bridging has a fee associated with each transaction. This fee must be included in the `value` field of the transaction. Fees can be estimated by calling `estimateEquipment`.

### Equipment Contract Mapping

Use the following mappings for the `_equipmentType` input on the `sendEquipment` function:

* Weapon: `1`
* Accessory/Offhand: `2`
* Armor: `3`
* Pet: `4`

### Contract Addresses

| Name      | Mainnet                                      | Testnet                                      |
| --------- | -------------------------------------------- | -------------------------------------------- |
| DFK Chain | `0x3f6cc9B0E342386618cDc5785Fd4DF82CfB32CCF` | `0x9B1CaACC71672D4843B06cde9AA47B50d7691E0c` |
| Kaia      | `0xfb065ef4257719A99Ce7f1d03A6C22bd28983b77` | `0x5982f5FA37a2d9Da8DB8a76Cb89FA655A17bEcf0` |
| Metis     | `0xBeA7c8BDBc5ab4D5752C597A8DA896C0BD94F6bf` | `0x30e643B8ce2d3B055086bA1AD05dA62d81b79BD5` |

### Interfaces

```solidity
interface IEquipmentBridgeLZ {

    event EquipmentArrived(uint256 indexed equipmentId, uint16 indexed equipmentType, uint256 arrivalChainId);
    event EquipmentSent(uint256 indexed equipmentId, uint16 indexed equipmentType, uint256 arrivalChainId);
    event LZMessageSent(tuple(bytes32 guid, uint64 nonce, tuple(uint256 nativeFee, uint256 lzTokenFee) fee) receipt);
    event PetArrived(uint256 indexed petId, uint256 arrivalChainId);
    event PetSent(uint256 indexed petId, uint256 arrivalChainId);

    function bridgeEquipment(uint32 _dstChainId, address _receiver, uint256 _equipmentId, uint16 _equipmentType) payable;
    function estimateEquipment(uint32 _dstChainId, address _receiver, uint256 _equipmentId, uint16 _equipmentType) view returns (tuple(uint256 nativeFee, uint256 lzTokenFee) fee);

}
```

### ABIs

{% file src="/files/JULN7X7OLoQaGwUIGRHQ" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://devs.defikingdoms.com/contracts/bridging/equipment-bridge-layerzero.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.