IDEX
  • Introduction to IDEX
  • What is IDEX
    • Components
      • High-performance Exchange
      • Hybrid Liquidity
        • HL Mechanics
        • IDEX HL and LPs
      • Smart Contracts
    • User Benefits
    • Liquidity Mining
    • Staking
    • Referral Program
    • Hummingbot
    • Markets
    • Fees
    • Live Help
  • Code
    • API
    • Smart Contracts
      • Custodian
      • Exchange
      • Governance
    • Resources
  • User Guides
    • Getting Started
      • Connect Your Ledger Hardware Wallet to IDEX
      • Connect Your Metamask Account to IDEX
      • Connect You Private Key/Keystore on IDEX
    • Trading
      • Deposit tokens
      • Withdraw tokens
      • Buy and sell
      • View and cancel open orders
      • View trade, deposit, and withdraw history
    • LP and Farms
      • Add liquidity (LP)
      • Remove liquidity (LP)
      • Add LP tokens to farms
      • Remove LP tokens from farms
    • Staking
      • Operate your own staking node
        • Host a public staking node
      • Delegate to an existing node
    • Polygon Confirmations
    • Hummingbot Setup
      • Pure Market Making
      • Arbitrage
    • AURA Swap Instructions
    • Withdraw Directly on Chain
      • Farm ID List
  • FAQ
    • Polygon Bridge
    • Escape Hatch
    • Adding Polygon To Metamask
    • Clock Sync
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  1. FAQ

Polygon Bridge

The Polygon sidechain is external to Ethereum. To move ETH and other Ethereum-based tokens back and forth between these chains, one must use the Polygon Bridge.

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Last updated 1 year ago

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We’ll show you step by step how to “bridge” tokens from the ethereum network to Polygon (Matic).

First, we must navigate to the official Polygon network bridge website:

Log in with (we recommend metamask for trading on IDEX).

Metamask will request your Signature to connect to the Polygon Bridge.

After signing your transaction you’ll be shown a few choices. This time we want to use the “Polygon Bridge”.

Select the token and amount you want to bridge, in this example we use “Ether”. Please note that your wallet must have enough Ether to cover the gas fees of the transaction.

After clicking on [Transfer] you will receive a couple of notifications, one of these showing you the estimated gas fee you’d pay for the transaction.

Once you've started the bridging process (as shown above) a new Metamask window will appear asking you to confirm the transaction.

The bridge process will begin. This could take a couple of minutes depending on network traffic and gas fees paid.

The transaction will first be “Confirmed” but not yet Completed*.

This can take a few minutes, you can close the small pop up window and watch the process complete by clicking on [Pending] at the top of the website:

Once completed, the tokens have been successfully bridged to Polygon! You can now click on [Switch to Polygon] to start operating on IDEX!

IMPORTANT:

You may not immediately see your new tokens on Metamask once you open it after bridging the tokens.

After clicking on [View in Explorer], a new browser window will open showing your wallet’s transactions. Click on [ERC-20 Token Txns] and you will see the tokens you just bridged.

Click on the token name at the right to find the smart contract address for each and copy it. Now open Metamask and click on [ADD TOKEN].

Paste the contract address in its respective field. The data will populate, click [Next] and you will see the token in the Metamask interface. Repeat this process for other tokens you might want to bridge such as the IDEX token.

Don’t panic! You just need to “add” them to the interface. To do so, you need the address of the token you just bridged, in this case “wETH” (). You can find the address on the Polygonscan explorer website.

If you have any questions about bridging tokens to Polygon to use on IDEX please contact us using the .

wrapped Ethereum
Live-help button on our website
Metamask
This guide provides steps for Metamask only
Click on [Sign] to continue
Here you’ll be able to “bridge” tokens from the Ethereum network to Polygon
Once you’ve set the amount of tokens you want to bridge, click on [Transfer]
Read the notification and click [Continue]
Acknowledge the estimated gas fee and click [Continue]
Click [Continue] to start the bridging process
Click on [Confirm] to continue.
Please be patient while the transaction is confirmed
Once "Confirmed" you can close this window.
The pending screen shows the status of your bridging transfer
The bridging transfer can take some time, in this example it took 19 minutes
The Metamask UI doesn't show your bridged tokens
Click on the three dots at the top, select [View in Explorer]
You can see your bridged tokens here
Metamask will auto-populate the fields after pasting the contract address
Now you see your balances!
PolygonPolygon
Official Polygon Bridge:
https://wallet.polygon.technology/bridge/
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