#WalletConnect
WalletConnect is an open-source protocol that enables secure communication between decentralized applications (dApps) and mobile wallets using end-to-end encryption. It is commonly used in Web3 applications to connect a wallet (like MetaMask, Trust Wallet, Rainbow, etc.) to a dApp without exposing your private keys.
How WalletConnect Works
Session Initiation:
A dApp generates a WalletConnect URI (a QR code or deep link).
The user scans the QR code or clicks the link using a compatible wallet.
Secure Connection:
Wallet and dApp exchange a key using symmetric encryption (often over a WebSocket).
Both parties are now securely connected.
Interaction:
The dApp sends requests (like signing a transaction) to the wallet.
The wallet prompts the user to approve or reject the request.
If approved, the wallet signs the transaction and returns the signed data to the dApp.
Session Termination:
Either side can disconnect the session at any time.
Features
End-to-end encrypted communication
QR code or deep link based connection
Supports Ethereum and many EVM-compatible chains
Compatible with over 170+ wallets
Doesn't require browser extensions
Security Notes
Private keys never leave the wallet.
Only session data and transaction requests are exchanged.
Always verify the origin of the dApp before connecting.
Popular Wallets Supporting WalletConnect
MetaMask (mobile)
Trust Wallet
Rainbow
Argent
Crypto.com DeFi Wallet
Ledger Live (mobile)
Common Use Cases
Logging in to dApps without passwords
Signing smart contract interactions (e.g., DeFi, NFTs)
Interacting with DAOs
Cross-platform wallet usage (desktop dApp + mobile wallet)
