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Ledger

Create an Acurast address with Ledger​

This guide explains how to create an address with Ledger hardware wallet. Ledger provides secure cold storage for your crypto assets by keeping your private keys offline.

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Acurast is built on Polkadot technology, so you'll need to install the Polkadot app on your Ledger device to manage Acurast accounts.

This guide uses Polkadot.js extension as the wallet interface, but your Ledger hardware wallet can also be used with other Polkadot-compatible wallets such as SubWallet or Talisman.

Prerequisites​

Before you begin, ensure you have:

  1. A Ledger hardware wallet
  2. Ledger Live application installed on your computer
  3. Your Ledger device initialized with a recovery phrase
  4. Latest firmware installed on your Ledger device
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Important Security Notes:

  • Never share your 24-word recovery phrase with anyone
  • Always verify addresses on your Ledger device screen before confirming transactions
  • Keep your Ledger device firmware up to date

1. Install the Polkadot App on Your Ledger Device​

  1. Connect your Ledger device to your computer and unlock it with your PIN
  2. Open Ledger Live on your computer
  3. Navigate to My Ledger in the left sidebar
  4. Search for Polkadot in the App catalog
  5. Click Install to add the Polkadot app to your Ledger device
  6. Wait for the installation to complete

2. Access Your Acurast Account Using Polkadot.js Extension​

To interact with Acurast using your Ledger, you'll need the Polkadot.js browser extension:

  1. Install the Polkadot.js extension for your browser (Chrome, Firefox, or Brave)
  2. Open the Polkadot.js extension
  3. Click on the + icon and select Attach Ledger account
  4. Make sure your Ledger device is connected and unlocked
  5. Open the Polkadot app on your Ledger device (the screen should display "Polkadot ready")
  6. In the Polkadot.js extension, select the account index you want to use (usually Account 0)
  7. Give your account a descriptive name, e.g., "Acurast Ledger"
  8. Click Import

3. Configure Acurast Network in Polkadot.js Apps​

To view your Acurast balance and interact with the network:

  1. Go to Polkadot.js Apps
  2. Click on the network name in the top-left corner
  3. Scroll down to Development or Custom Endpoint
  4. Enter the RPC endpoint for your desired network:
    • Acurast Canary: wss://public-rpc.canary.acurast.com
    • Acurast Mainnet: wss://public-rpc.mainnet.acurast.com (coming soon)
  5. Click Switch to connect to the Acurast network
  6. Your Ledger account should now display your token balance (cACU for Canary or ACU for Mainnet)

Get the address of your Acurast account on Ledger​

Your Ledger Acurast address is the same as your Polkadot address but with a different prefix:

  1. Open the Polkadot.js extension
  2. Click on your Ledger account
  3. Click the copy icon next to your address to copy it to the clipboard
  4. You can also verify the address on your Ledger device screen for additional security

Connect your Ledger account to the Acurast Hub​

  1. Connect your Ledger device and unlock it
  2. Open the Polkadot app on your Ledger (it should display "Polkadot ready")
  3. Go to hub.acurast.com and click Enter Hub
  4. Click Connect
  5. Select Polkadot.js as your wallet option
  6. In the Polkadot.js extension popup, select your Ledger account
  7. Click Connect to authorize hub.acurast.com to access your account

Signing Transactions with Ledger​

When you make a transaction on the Acurast Hub:

  1. Your Ledger device will prompt you to review the transaction details
  2. Carefully verify the transaction information on your Ledger screen:
    • Transaction type
    • Amount (if applicable)
    • Destination address
    • Fees
  3. Use the buttons on your Ledger to navigate through the transaction details
  4. If everything is correct, approve the transaction on your Ledger device
  5. The transaction will be broadcast to the Acurast network

Troubleshooting​

Ledger not detected:

  • Make sure your Ledger device is unlocked and the Polkadot app is open
  • Try a different USB cable or port
  • Ensure Ledger Live is closed (it can interfere with browser access)
  • Enable "Blind signing" in the Polkadot app settings on your Ledger if required

Transaction fails:

  • Verify you have sufficient token balance for transaction fees (cACU for Canary or ACU for Mainnet)
  • Make sure your Ledger firmware is up to date
  • Check that the Polkadot app on your Ledger is the latest version

Additional Resources​