How to provide liquidity on STON.fi

Learn how to add your tokens to a pool on STON.fi. You’ll supply liquidity, receive LP tokens that represent your share, and your position will accrue a portion of swap fees over time.

In this guide you’ll:

✅ Pick a pool and choose balanced or arbitrary provision

✅ Add liquidity step-by-step and confirm safely in your wallet

✅ Understand LP tokens and what happens after the deposit

✅ Review fees, good practices, and how to withdraw later

You’ll need

• A connected wallet (e.g., Tonkeeper)

• The two tokens you plan to deposit

• A small GRAM balance for network fees

What’s a liquidity pool?

A pool is a reservoir of two assets (e.g., STON and GRAM) managed by smart contracts. When users swap, the pool balances amounts; liquidity providers receive a share of swap fees.

There are two ways to add liquidity:

1️⃣ Balanced: deposit the same dollar value of both tokens.

2️⃣ Arbitrary (v2 pools): deposit in any ratio or even just one token; the contract handles the math.

Step 1. Pick a pool

Open Pools → choose a pair (e.g., STON/GRAM). Review TVL, 24h volume, and APR to understand pool size, recent activity, and indicative fee rates. Click Add liquidity.

STON.fi interface: the STON/GRAM pool

💡 Tip: Use the search bar; verify token icons and tickers match what you intend to deposit.

🔗 Read more on pool metrics in the article How to evaluate a liquidity pool.

Step 2. Choose your mode

🔹 Balanced (default)

• Enter amount for Token A; the app auto-calculates Token B to match pool ratio.

• Click Preview liquidity provision.

🔹 Arbitrary (V2)

• Toggle Arbitrary provision to supply in any proportion.

• Enter amounts → Preview liquidity provision.

STON.fi interface: adding liquidity

💡 Tip: Missing one of the tokens? Make a swap first, then return.

Step 3. Review & confirm

In the confirmation window you’ll see:

• Indicative APR

• Your pool share

• Estimated network fee

Click Confirm liquidity provision, then approve operation in your wallet.

After confirmation

• You’ll receive LP tokens representing your pool share; fee distributions accrue to the position over time.

• Liquidity can be withdrawn anytime (subject to pool terms).

• Fees are collected in the pool’s received token on each swap.

After confirmation

• Your LP positions appear in Pools → My pools.

• Your position starts accruing a share of swap fees as trades happen in the pool.

• You can add more liquidity or withdraw later from the same screen.

Notes & good practice

✅ Keep a small GRAM buffer for fees.

✅ Larger pools generally mean lower price impact for swaps.

✅ Arbitrary mode is convenient when you mainly hold one side.

✅ If a pool has an active farm, you may stake LP tokens for additional reward programs.