Guide

How to swap tokens on VVS Finance

A swap looks like one tap, but four numbers decide what actually lands in your wallet: price impact, slippage tolerance, the route, and the minimum received. Understand those and you'll never be blindsided by a trade again.

What a swap really is

Swapping exchanges one Cronos token for another directly against a liquidity pool — there's no buyer on the other side, just the pool and its formula. You approve the token (a one-time permission per token, paid in CRO gas), confirm the trade, and the contract sends the output to your wallet in the same transaction. Because there's no order to "fill," the only real questions are what rate you get and whether the trade goes through at that rate.

The four numbers that matter

1. Price impact

Price impact is how much your own trade moves the pool's price. It's a function of your trade size relative to the pool's depth, as the constant-product example shows. A small trade in a deep pool barely registers; a large trade in a shallow one can cost you several percent. If the interface flags a high price impact, that's not a bug — it's telling you the pool is too thin for a trade this big. Split it up, or find a deeper route.

2. Slippage tolerance

Between the moment you confirm and the moment the transaction settles, the price can move — someone else may trade the same pool first. Slippage tolerance is the maximum adverse move you'll accept before the trade auto-cancels. Set it:

Too low and volatile or busy trades keep failing (you still pay gas for the failed attempt).
Too high and you authorize a potentially much worse fill — and you become a juicier target for sandwich attacks, where a bot trades around you to skim the difference.

For calm, deep stablecoin pairs a fraction of a percent is plenty. For thin or fast-moving pairs you'll need more, but treat a large slippage setting as a warning sign, not a fix.

3. The route

If no direct pool exists between your two tokens, the router bridges through an intermediate token — A to B to C — in a single transaction. More hops can mean more total fee and more price impact, but sometimes a multi-hop route is cheaper than a shallow direct one. The interface picks a route for you and shows it; glance at it so you know which pools your trade is actually touching.

4. Minimum received

This is the number to actually read. "Minimum received" is the worst-case output you'll accept, derived from the quote minus your slippage tolerance. If the market moves against you within tolerance, you'll get somewhere between this figure and the quote; if it moves further, the trade reverts and you keep your input (minus gas). Confirm the minimum received looks sane before you sign — it's your safety net.

Quote vs. reality

The big number on the swap screen is an estimate. What you're truly agreeing to is the minimum received. If those two are far apart, your slippage is set high or the pool is thin — pause and reconsider.

A sensible swap routine

Confirm you're on a channel you trust and that both token contract addresses match an official source — scam tokens copy real names.
Enter the amount and read the price impact. If it's high, reduce the size or wait for deeper liquidity.
Set slippage to the lowest value that lets the trade succeed for this pair.
Check the route and the minimum received.
Make sure you hold enough CRO for gas, then confirm. Read what the wallet prompt actually authorizes.

Common mistakes to sidestep

Cranking slippage to force a trade through. You're usually fighting thin liquidity or a fee-on-transfer token; high slippage just hands value to bots.
Trading a token you haven't verified. A matching name and logo mean nothing — only the contract address does.
Forgetting gas. Every action needs CRO. Keep a little spare so you're never stranded mid-transaction.
Approving unlimited spend without thinking. Token approvals are powerful; only grant them to contracts you trust, and revoke ones you no longer use.

Swapping is the simplest thing you'll do on VVS, and the easiest to do carelessly. Get comfortable reading these four numbers and you've mastered the part of DeFi people most often get wrong. To see why depth and price impact behave the way they do, revisit how it works; to understand the risks of holding a liquidity position rather than just trading, read risks & impermanent loss.