How to Bridge and Swap Tokens Across Networks: A Cross-Chain Guide

A cross-network trade moves value from one network to another. You can send the same asset, such as ETH from Base to Arbitrum, or receive a different token on arrival, such as USDC on Arbitrum for ETH on Base. On Swapdore both start in the same swap card and need one transaction from your wallet on the source network. Swapdore does not hold your funds at any point.

Supported networks: Robinhood Chain, Base, Arbitrum One, Ethereum, OP Mainnet, BNB Smart Chain, Polygon, Avalanche, HyperEVM, Monad.

How a route is chosen

Swapdore asks Relay and LI.FI for quotes. LI.FI can route through bridges such as Across and Mayan. Each quote is checked before it is shown: the receiving address, the destination network and token, the guaranteed minimum, the Swapdore fee and the contract you will send to. Among the quotes that pass, the one with the highest guaranteed minimum on the destination is selected.

Step by step

1. Connect your wallet.
2. Under You pay, choose the source network, the token and the amount.
3. Under You receive, choose a different network and the token you want there. The card switches to a cross-network quote.
4. Read the quote: the estimated amount, the Minimum received and the Total deductions, which lists who takes what.
5. Select Confirm in wallet. An ERC-20 may first need an approval for the exact amount.
6. The card then follows the transfer: first the source transaction, then the delivery on the destination, with links to both.

Fees and gas

The Swapdore fee uses the same marginal tariff as a swap on one network: 0.10% on the first 1,000 USDT-equivalent, 0.05% up to 1,000,000 and 0.01% above that. It is included in the quote. Bridge and relayer fees are also included in the quote and listed under Total deductions; a provider fee charged separately is marked as such. You pay network gas on the source network only. You do not need gas on the destination network to receive.

Slippage and the guaranteed minimum

Slippage tolerance can be set between 0.01% and 5%; anything above 1% needs an extra confirmation. The minimum received is what the provider guarantees on the destination. If a provider lowers that minimum by more than 0.1% while building the transaction, nothing is sent: the new minimum is shown and you decide whether to send with it.

Delivery, refunds and records

Most transfers arrive within a minute. The card counts a transfer as delivered only after it reads the arrival on the destination network itself. If a provider cannot complete the route, it may return the funds; the card shows the refund and the network it arrived on once it is confirmed on chain. Less than the minimum or a different token can arrive in rare cases, and the card says so.

The transfer record is kept only in this browser. On another device no card appears, but the funds still arrive; use the explorer or the provider’s tracking link to follow them.

Moving tokens out of many networks at once is easier with the Dust converter. If your wallet asks for an approval first, see the token approval guide.