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

# Metamask Wallet

LYNC Metamask Wallet SDK is a one-stop solution for game developers to easily integrate Metamask into their game engine and deploy their game on multiple networks with just a few clicks. This SDK allows game developers to monitor gamers’ data via LYNC analytics system and update the SDK without leaving the game engine.

<figure><img src="/files/4rZYYGrPA22SirECAN0V" alt=""><figcaption><p>Integrate Metamask wallet inside any game using LYNC SDK</p></figcaption></figure>

## Get Your API Key&#x20;

Please get your API key before downloading the SDK from [**here**](https://www.lync.world/form.html)

## Installation

Download the LYNC - Metamask Wallet SDK from [**here**](https://github.com/LYNC-WORLD/Metamask-Unity-Wallet-SDK)<br>

Import the SDK .unitypackage file to your project. or simply drag and drop .unitypackage file to your project.

<figure><img src="/files/ZOxvCM5mHIK23sqZKmoO" alt=""><figcaption><p>Assets -> Import Package -> Custom Package</p></figcaption></figure>

Once the Metamask Wallet SDK package has finished importing into your Unity project, you can begin integrating it into your game. To do this, open the **ConnectWallet** scene provided by the LYNC - Metamask SDK.\
\
&#x20;                                            **Path : Assets ->LYNC-Metamask-SDK -> Scenes**<br>

<figure><img src="/files/2Q17jvrURq99NRDDSOsz" alt=""><figcaption><p><strong>Assets ->LYNC-Metamask-SDK -> Scenes</strong></p></figcaption></figure>

## Choose blockchain network&#x20;

{% hint style="info" %}
If you haven't generated API Key, please check [#get-your-api-key](#get-your-api-key "mention")
{% endhint %}

After opening **ConnectWallet** scene, Go to **Interface.** In the "Inspector" window, go to the API key & Enter the **API key**.&#x20;

<figure><img src="/files/BROEKhh7HJcC9l5PktvW" alt=""><figcaption></figcaption></figure>

To choose the blockchain network, simply go to the **CurrentChain** drop-down menu and pick the network of your preference to deploy your game on.

<figure><img src="/files/3sGSj9Xe4fHCPrbNsqJd" alt=""><figcaption><p>Interface -> CurrentChain -> Choose Your Chain</p></figcaption></figure>

## Integrating ConnetWallet scene into the build&#x20;

To deploy your Unity project, it's necessary to set up the Player Settings in Unity. Follow these steps to select the LYNC WebGL template.

<figure><img src="/files/DXxDHLZH7ryfrLKOPoO5" alt=""><figcaption><p>File -> Build Settings</p></figcaption></figure>

In the "**Build Settings**" window, place **ConnectWallet** and **FetchWallet** at the top of this section.&#x20;

<figure><img src="/files/hnXXn2Jnkyq2rhdAU7qO" alt=""><figcaption><p>Add ConnectWallet &#x26; FetchWallet Scene to the top of Scenes in Build</p></figcaption></figure>

Go to "**Player Settings**" and navigate to "**Resolution and Presentation**". **Select LYNC - Template** in WebGL Template

<figure><img src="/files/YegsxNgCDuWxy9WEFS7B" alt=""><figcaption><p>Player Settings -> Resolution and Presentation -> Select LYNC - Template</p></figcaption></figure>

After completing all the necessary steps and configuring the Player Settings with the LYNC WebGL template, you can now build and run your game.

* To do this, go to "**File**" on the top menu bar in the Unity editor and select "**Build and Run**."&#x20;

<figure><img src="/files/qSb6qB2mV2jQuJszRQ5a" alt=""><figcaption><p>Build and Run </p></figcaption></figure>

Congratulation, you have successfully integrated the Metamask wallet with your favourite blockchain network using LYNC SDK. \
\
NOTE: If you wish to use wallet address inside game after user's wallet is connected, use:

```
PlayerPrefs.GetString("WalletAddress");
```

If you face any error, while Build and Run.\
\
PLEASE ADD, Unity package install by git link\
\
com.unity.nuget.newtonsoft-json

<figure><img src="/files/D72XvPGZk4IAisG4BKMm" alt=""><figcaption></figcaption></figure>