Swap
A token swap exchanges one crypto token for another, for example turning some ETH into a stablecoin. This section only explains the idea: there is no swap widget on this page.
- Swaps are usually executed by a smart contract that holds pools of tokens and calculates a price from their balances.
- The price you are quoted can change before your transaction is confirmed. This difference is called slippage, and wallets let you set a maximum slippage you accept.
- Every swap pays a network (gas) fee, and often a small pool or protocol fee as well.
- Before swapping a token, your wallet may ask you to approve a spending allowance. Only approve what you need, and revoke approvals you no longer use.
- Confirmed swaps are generally irreversible. Always check the token addresses and final amounts in your wallet before confirming.