How to Bridge native USDC from Ethereum to Polygon | Avalanche | BSC | ? — About Relay

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How to Bridge native USDC from Ethereum to Polygon | Avalanche | BSC | ? — About Relay

In this example we will show you how to bridge “native” USDC stable coins from Ethereum to Binance Smart Chain (BSC).

The procedure is exactly the same to the other destination chains only the native USDC contract on the destination chain is different.

Quick, fast, secure and low cost.

Why native? Well there are many different wrapped versions of all tokens when they are moved from there original chain to another chain.

This is just the way cross-chain works. In many smaller tokens cause liquidity fragmentation over the chains. By using native stable coins you never have to worry if there is enough liquidity on the other chain..

First we will go to the bridge app on https://app.relaychain.com.

We already have our Metamask on our source chain (Ethereum) and USDC in our wallet.

As you can see we are clearly connected to Ethereum and first will select the destination chain in the “sending To:” dropdown:

In this example we use Ethereum as the source “Sending From:” and BSC as the “Sending to:” destination chain.

The procedure is exactly the same from Ethereum to all 3 native USDC bridges “destination chains” : Polygon | BSC | Avalanche

Next we will select the token and amount we want to transfer:

If we select USDC from the drop down menu we will get the following and can safely select “I understand” and press continue.

We selected to cross-chain bridge 250 USDC from Ethereum to BSC and this is how it looks before we select to transfer:

Above the Transfer button you will see:

1. Max amount USDC to transfer

2. Estimated Transfer fee (bridge fee)

If everything looks good we will start the transfer by pressing the transfer button.

Then we get the above overview and we select approve transfer

This screen will pop-up next

Followed by this screen to confirm the transaction.

Then we select Start transfer

Then the transfer is pending

And we get the final confirmation in metamask with the gas fees (for the source chain TXN fee) and the bridge fees (including the destination chain TXN fee)

Voila the Transfer is now send from Polygon to the destination chain you chose. And the tokens left the chain. (In this example from Polygon to Avalanche)

The bridge is very fast . However it still has to be processed on the destination chain. The time it takes depends mostly on the destination chain.

Switching to the destination chain

Recommended to switch from Ethereum to the destination chain within the relay Bridge App. This will automatically switch MetaMask as well.

In case this is your first time you ever used the destination change this will also import the correct destination chain settings from the Bridge App into MetaMask.

In our below example we choose Binance Smart Chain (BSC) .

How can I add the token contracts on the destination chain (Avalanche — Polygon — BSC ) ?

Remember every token that is bridged has a different token contract on every chain. So choose the correct corresponding contract from the list below. You only have to do this once per token on every chain you use. Once done the tokens you bridged will be visible on the destination chain.

When you transferred USDC from Ethereum to Avalanche

Importing the native USDC contracts on the Avalanche chain:

You can copy paste this USDC contract for Avalanche in the box below: 0xa7d7079b0fead91f3e65f86e8915cb59c1a4c664

When you transferred USDC from Ethereum to Polygon

Importing the native USDC token contracts on the Polygon chain:

You can copy paste this USDC contract for Polygon in the box below: 0x2791bca1f2de4661ed88a30c99a7a9449aa84174

When you transferred USDC from Ethereum to BSC

Importing the native USDC token contracts on the BSC chain:

You can copy paste this USDC contract on Binance Smart Chain (BSC) in the box below: 0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d

For more info on: How to use our Ethereum Bridge ?

Originally published at https://about.relaychain.com.



Original post here: How to Bridge native USDC from Ethereum to Polygon | Avalanche | BSC | ? — About Relay

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