STON.fi

STON.fi is one of TON's largest decentralized exchanges (DEX) — a protocol that lets people swap one token for another using automated liquidity pools instead of a company-run order book — and @STONfi_bot is its official way to do that from inside Telegram. You connect an existing TON wallet (Tonkeeper, the built-in Wallet, or anything else that supports TON Connect), pick the two tokens you want to swap, and the bot's Mini App shows the current rate before you confirm the transaction in your own wallet app. STON.fi never takes custody of your funds; it only routes the swap through its smart contracts, which also power a cross-chain bridge to other networks.

The fee structure is public and small: a standard pool charges 0.3% of the swapped amount, split between liquidity providers and the protocol, on top of the usual TON network gas. That is transparent compared to many trading apps, but it does not remove the risks that come with any DeFi protocol: rates move with the market and slippage can eat into a trade, smart contracts can contain bugs no audit fully rules out, and scammers regularly launch fake jetton tokens designed to look like a real project — always double-check a token's contract address before swapping into something unfamiliar.

Nothing here is an investment recommendation or a promise of profit; it is simply a tool for exchanging tokens you already intend to hold.