$WCT WalletConnect is an open-source protocol that allows decentralized applications (dApps) to securely connect and interact with cryptocurrency wallets (like MetaMask, Trust Wallet, Rainbow, etc.) across different devices.
š§ How It Works:
1. A dApp shows a QR code (on desktop) or a deep link (on mobile).
2. The user scans the QR code with their mobile wallet app (or clicks the deep link).
3. A secure connection is established between the dApp and the wallet.
4. Transactions can be signed and approved from the wallet app, without exposing private keys to the dApp.
š§ Example Use Case:
Youāre on a DeFi website on your desktop and want to swap tokens. Instead of logging in with a username/password:
ā¢ You scan the QR code using MetaMask Mobile.
ā¢ Your wallet connects to the website.
ā¢ You approve the transaction from your phone.
š Security Note:
ā¢ Private keys never leave your wallet. The dApp only gets permission to request transactions, not access your funds directly.
ā¢ The connection is end-to-end encrypted.
š WalletConnect v2 (latest version):
ā¢ Supports multi-chain connections (Ethereum, Solana, etc.).
ā¢ Improved session management and performance.
ā¢ More secure and scalable.
