Go to STON.fi and click Connect wallet.
- On desktop: click the icon of your wallet in the list to open the wallet app and approve the connection, or scan the QR code with your TON wallet's built-in scanner.
- On mobile: tap your wallet in the list — it should hand off into the wallet app automatically. You can also use the QR code with another device.
Your wallet must support TON Connect. Most popular TON wallets (Tonkeeper, Wallet in Telegram, My Wallet (formerly MyTonWallet), etc.) do.
Once approved, your wallet stays connected until you disconnect it manually or clear your browser cache.
For step-by-step screenshots and visual examples, see the official guide: