Swap or Bridge? How to Move Tokens to Base
Choose the right route to Base. Learn how swaps, bridges, token approvals and network fees work in the Lemon Jet wallet.
You open Lemon Jet, see funds in your wallet and prepare to play. Then the wallet shows two options: Swap and Bridge. Both move value, but they solve different problems.
In the Lemon Jet wallet, a swap exchanges assets within one network. A bridge transfers value between networks. To prepare for a crypto crash game on Base, begin with where your funds are and what you need them to become.
Swap vs bridge: start with the result you need
Imagine that you hold USDC on Base and want ETH on Base. The network already matches; the asset needs changing. That is a swap, provided a route is available.
Now imagine that you hold ETH on Arbitrum and need ETH on Base. The asset name can stay the same, but its network must change. That requires a bridge or another supported transfer service.
| Your starting point | Your intended result | Relevant action |
|---|---|---|
| USDC on Base | ETH on Base | Swap on Base |
| ETH on another supported network | ETH on Base | Bridge to Base |
| Funds already in the required asset on Base | Use those funds on Base | No swap or bridge needed |
These are examples of the distinction, not promises that every pair will have a route. The token selector and current quote determine what is available.
Switching networks does not move your funds
A network switch changes which blockchain your wallet interacts with. It does not transfer its balance. Sending ETH to your own address on Ethereum also keeps that ETH on Ethereum.
EVM wallets can use the same address across several networks, which makes this easy to miss. MetaMask's guide to blockchain bridges explains why a normal transfer to an address stays on the sending network.
Before choosing a route, identify the network beside the asset in your portfolio. If the numbers look inconsistent, read how Base wallet balances work.
Read the quote as a complete transaction
Open your wallet in Lemon Jet, choose Swap or Bridge and select the available assets. For a bridge, review both the source and destination network. Then look beyond the largest number on the screen.
The expected amount is the quote's estimate. Minimum received reflects the route's stated output limit with your selected slippage tolerance. The network fee pays for blockchain execution; a bridge or protocol fee is a separate cost. The bridge screen also shows an estimated completion time.
Slippage tolerance allows a specified amount of movement in the execution price. Raising it accepts a less favourable result within that tolerance; it does not make a route safer or guarantee completion.
Quotes expire. If Lemon Jet asks you to refresh a route, review the replacement amount and fees before signing. A quote you read earlier is not a permanent offer.
An approval can come before the actual swap
When the route spends an ERC-20 token, your wallet may first request permission for the relevant contract to spend it. That approval is separate from the transaction that performs the exchange or starts the bridge.
A successful approval therefore does not mean the destination asset has arrived. Check the token, spending amount and contract shown in the request. Our LJT token approval guide explains the distinction between connecting a wallet and authorising token spending.
Leave enough of the source network's native asset for fees. After arrival on Base, ordinary transactions also need native ETH there. Holding USDC, LJT or wrapped ETH alone does not provide that native balance; see why LJT users need ETH on Base.
Wait for the destination transaction
Bridging has more than one stage. Your transaction can succeed on the source chain while delivery is still pending on Base. LI.FI's transfer status reference explicitly distinguishes the sending and receiving transactions.
Use the bridge result and destination transaction, when available, to check what arrived. Neither the time estimate nor the original quote guarantees successful delivery. If the result is unclear, follow the transaction status guide before submitting another transfer.
Once the correct funds are on Base, what LJT is used for explains its role in Lemon Jet. A token appearing in a wallet does not establish an available trading market: check for a current route before planning any exchange involving LJT.
FAQ
Can I bridge just by selecting Base in my wallet?
No. Selecting Base changes the active network. Your assets remain on their existing networks until an appropriate transfer completes.
Does approving a token complete my swap?
No. Approval gives a contract a spending allowance. The swap or bridge still needs its own execution transaction.
Is the fastest quoted bridge guaranteed to finish first?
No. The displayed time is an estimate. Network conditions and the route's providers affect completion, and a transfer can encounter delays or fail.