# How to Log In

### Overview

You can now log in using your Multichain wallets to access chat features, save personalized settings, and unlock additional functionalities.

### How It Works

#### 1. Wallet NOT linked to OneID

If your multichain wallet is not linked to any OneID, your username will be auto-generated with the format:

```
[First 4 characters of EVM address (without 0x)] + [Last 4 characters of EVM address]
```

*Example:*

* *Wallet address: 0x71079E7acaB18242B292DbFb451c25155b8fC7c2*
* *Username: 7107C7c2*

You can update your username by purchasing a OneID and linking it to your wallet after logging in.

#### 2. Wallet linked to OneID

If your wallet is already linked to one or more OneIDs:

* Your username is the linked OneID
* If multiple OneIDs are linked, the primary OneID will be used as your username.

*Example:*

* *Linked OneID: csw\.98*
* *Username: csw\.98*

### How to Log In

Follow these steps to log in with your wallet:

**Step 1:** Download and install the app

{% embed url="<https://docs.coin98.com/products/coin98-super-wallet/mobile/getting-started/how-to-download-install>" %}

**Step 2**: Create or import your multichain wallet

{% embed url="<https://docs.coin98.com/products/coin98-super-wallet/mobile/getting-started/v15-how-to-create-or-import-a-multichain-wallet>" %}

**Step 3:** Click **Log in with wallet** at the top left corner

**Step 4:** Select the wallet you want to log in with

<figure><img src="https://2549780185-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FirKWZRA5WMZ5uBeDGB96%2Fuploads%2F1xSq0xlUTeHfT4xmDeBh%2Funknown.png?alt=media&#x26;token=b81e3459-8f51-423c-868e-1945024c8c32" alt=""><figcaption></figcaption></figure>

Once logged in, your username will automatically reflect on your main screen

{% hint style="info" %}
**Note:**

* If your wallet’s linked OneID changes, your username will update automatically
* You can log in with any Multichain wallet available on your device
* You can only log in with 1 wallet at a time, logging in with a new wallet will log out the previous one.
  {% endhint %}

### How to Log Out

**Step 1:** Click **the logged-in wallet** at the top left corner

**Step 4:** Click Log out icon

<figure><img src="https://2549780185-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FirKWZRA5WMZ5uBeDGB96%2Fuploads%2FN3sQ9LV99XdezanTy5f9%2FScreenshot%202026-03-21%20at%205.09.53%E2%80%AFPM.png?alt=media&#x26;token=3ac2dd73-f515-4515-b7cc-3602f0cacd9b" alt="" width="375"><figcaption></figcaption></figure>