> For the complete documentation index, see [llms.txt](https://guide.ston.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.ston.fi/swapping-on-ston.fi/how-to-swap-exchange-tokens-on-ston.fi.md).

# How to swap (exchange) tokens on STON.fi

{% hint style="info" %}
**In this guide you’ll**:\
✅ Select tokens and amounts\
✅ Review route, fees, slippage, and “min received”\
✅ Confirm the swap and verify the result
{% endhint %}

{% embed url="<https://youtu.be/R-tBp6zXfJA?si=Wd16rsQsHKas_BS3>" %}
Showcase video: how to swap tokens on STON.fi&#x20;
{% endembed %}

### 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&#x20;

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**.

<figure><img src="/files/iyt7kKiXbs2uGZdZ1J7M" alt=""><figcaption><p><a href="http://ston.fi">STON.fi</a> interface: swap window</p></figcaption></figure>

### 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](http://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.<br>

<figure><img src="/files/ukRtL2uX1hyKz58orO1M" alt=""><figcaption><p><a href="http://ston.fi">STON.fi</a> interface: swap confirmation window</p></figcaption></figure>

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.

<figure><img src="/files/XgpTDLxZemYAUCuGq4Zn" alt=""><figcaption><p>STON.fi interface: successful interface</p></figcaption></figure>

### 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.

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