> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bm.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign In to BM.XYZ with Your Email — No Wallet Needed

> Sign in with your email and a one-time passcode to trade on BM.XYZ without installing a browser wallet extension. Powered by Privy.

BM.XYZ testnet supports email-based login so you can start trading without installing a browser wallet extension. Under the hood, [Privy](https://privy.io) handles authentication and automatically provisions an embedded wallet tied to your email address. You get a real BM Chain address and the same full trading experience as any extension wallet user.

## Email login flow

<Steps>
  <Step title="Open the connect prompt">
    Click **Connect Wallet** in the top navigation bar or in the trade panel.
  </Step>

  <Step title="Choose Email">
    In the connection modal, select **Email** instead of a wallet provider.
  </Step>

  <Step title="Enter your email address">
    Type the email address you want to use. BM.XYZ passes it to Privy to initiate authentication — your email is not stored by the exchange itself.
  </Step>

  <Step title="Enter the one-time passcode (OTP)">
    Check your inbox for a passcode from Privy. Enter it in the prompt. If you don't see it within 60 seconds, check your spam folder or request a new code.
  </Step>

  <Step title="Complete Enable Trading">
    Privy creates an embedded wallet and assigns you a BM Chain address. Proceed through the standard **Enable Trading** flow — claim your testnet tokens and sign the gas-free session message — exactly as you would with an extension wallet.
  </Step>
</Steps>

## Embedded wallet behavior

| Topic           | Behavior                                                                                            |
| --------------- | --------------------------------------------------------------------------------------------------- |
| Custody         | Embedded wallet keys are managed by Privy; export options follow Privy's key management policy      |
| Same features   | Spot trading, perpetuals, portfolio view, and leaderboard all work identically to extension wallets |
| Onchain address | You receive a standard BM Chain address, visible in your Portfolio and in block explorers           |

## Email vs. extension wallet — when to use each

<Tabs>
  <Tab title="Use Email if…">
    * You want the fastest possible first-time setup with no extension to install
    * You are on mobile and don't have a standalone wallet app configured
    * You are running a quick testnet demo and want to get to the trade screen immediately
  </Tab>

  <Tab title="Use an Extension Wallet if…">
    * You already use MetaMask, OKX Wallet, or another extension daily
    * You need hardware wallet (e.g. Ledger) support
    * You prefer full self-custody of your keys from day one
  </Tab>
</Tabs>

## Troubleshooting

| Issue                            | What to try                                                                                                              |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| OTP not received                 | Check your spam folder; wait 60 seconds; then click **Resend code** to request a new OTP                                 |
| Session expired                  | Log in again with your email and re-run Enable Trading if prompted                                                       |
| Want to switch to MetaMask later | Connect MetaMask through the standard wallet flow — it creates a separate address; accounts are not linked automatically |

<Note>
  Email login availability on mainnet may differ based on compliance review. This page documents the **testnet** implementation only.
</Note>