How to swap (exchange) tokens on STON.fi

Learn how to swap one token for another on STON.fi — choose assets, review route, slippage and fees, and confirm safely in your wallet.

In this guide you’ll: ✅ Select tokens and amounts ✅ Review route, fees, slippage, and “min received” ✅ Confirm the swap and verify the result

Showcase video: how to swap tokens on STON.fi

Step 1. Open Swap tab

Open the STON.fi app and go to the Swap tab. 💡 Keep a little GRAM in your wallet for network fees.

Step 2. Pick tokens

In “You pay”, choose the token you’re sending (for example, USDt). In “You get”, choose the token you’ll receive (for example, GRAM). Enter an amount on either side — the other side auto-calculates.

Click Swap.

STON.fi interface: swap window

Step 3. Review and confirm

In a pop-up window verify the details: the tokens and amounts, the effective rate, your slippage tolerance, the fee reservation. All swaps on STON.fi are routed with Omniston — a liquidity aggregation protocol that finds the best route and price by aggregating liquidity across TON, then executes your swap in one go.

STON.fi interface: swap confirmation window

Click Confirm swap and approve the transaction in your wallet.

✅ Done! After confirmation, your new tokens appear in your wallet and app balance. 🔎 To verify on-chain, use the explorer link shown after the swap.

STON.fi interface: successful interface

Common hiccups and quick fixes

• Insufficient GRAM for fees: add a bit of GRAM and retry. • Slippage error or “price updated”: raise slippage slightly or lower the amount. • Token not visible in wallet: add the jetton to your wallet’s token list. • Allowance/approval prompt: approve once, then swap again.

Smart safety habits

🔒 Use official links and verified tokens only. 💡 Keep slippage reasonable; avoid illiquid pairs for large swaps. 🚫 Never share your recovery phrase — no one from STON.fi will ever ask.