Swap

LitDEX routes swaps through two AMM routers and picks the best output automatically:

• LitDEX router — the native LiteSwap V2 fork on LitVM
• OmniFun router — a partner router with overlapping pairs

When you punch in an amount, the dApp queries both routers' getAmountsOut, picks whichever pays out more, and shows the chosen path in the bottom-right of the swap card.

How to swap

1. Open the Swap page from the top nav.
2. Pick a You Pay token.
3. Pick a You Receive token. The output amount is computed live as you type.
4. Set slippage (default 0.5%). Higher slippage tolerance means the swap will still go through if the price moves slightly between quote and execution.
5. Click Swap, sign the approve (first time per token), then sign the swap.

The success card shows the explorer link, the router used, and the exact amounts.

Token list

The default list lives in litdex-core-logic.ts and includes zkLTC, USDC, USDT, WBTC, WETH, LDEX, plus several Lit-themed memecoins (LiToad, Lester, Pepe, Yuri, etc.). Custom tokens deployed through Deploy → Token can be pasted in by address.

Slippage and gas

• Slippage: 0.5% is fine for most pairs. If a pair has thin liquidity bump it to 1-3%.
• Gas: paid in zkLTC. Average swap costs ~0.0001 zkLTC.
• Deadline: every swap has a 20-minute deadline encoded into the transaction.

Routing logic

quote LitDEX → out_A
quote OmniFun → out_B
chosen = max(out_A, out_B)

The footer of the swap card always reads Routed via LitDEX or Routed via OmniFun so you can see which AMM was used. If a pair only exists on one router the other is skipped silently.

Slippage / "Insufficient output amount" errors

This happens when the price moves more than your slippage tolerance between the quote and the swap landing. Either:

• raise the tolerance,
• swap a smaller amount,
• or wait a few seconds for the pool to settle.

The Trading on LitDEX badge under the swap title indicates which router will execute. It updates live as you change tokens.