Trading on Lighter

The Lighter application (found at was created to provide a simple way to access the Lighter protocols for any experience level. This is the ideal option for people who are not familiar with blockchain development. The below steps are created for clarification on how to setup and use the frontend.

💡 Note: If you are looking for more information on interacting with the deployed contracts directly or using a Python SDK, more information can be found here.

Step 1: Start Trading

Click on the button that says “Start Trading” in the upper right hand corner of application website.

Step 2: Connect a Wallet

Click on the “Connect” button on the top right corner of the trading page.

Lighter Frontend application easily connects to more than 200 wallet types including MetaMask, Coinbase Wallet, and Rainbow. Depending on what kind of wallet you would like to link the system will prompt you on all necessary steps to connect your wallet to Lighter Frontend.

Note: If you would like to create a new wallet, click “Get your first wallet” and you will be prompted to install MetaMask.

Step 3: Asset Logistics

In order to be able to trade, you need assets on the Arbitrum Network. For example, if you are planning to buy WETH on WETH - USDC pair, you will need USDC in your linked wallet to pay for the transaction. If you are looking to sell WBTC on WBTC - USDC pair, you will need WBTC in your linked wallet.

In all scenarios, you will also need a small amount of ETH in order to pay for gas prices. (Read more about Lighter’s efficient gas protocols here.)

If you have assets on a different network, you will need to bridge them to the Arbitrum Network in order for them to be available to trade. Depending on what wallet you use, we recommend you search online for rules. For example, searching for “bridging from Ethereum to Arbitrum using MetaMask” would direct you to this helpful article.

Once you have assets on the Arbitrum Network, you can swap them using this link so you can ensure you have the correct assets for the transaction you are trying to execute.

Step 4: Trading Dashboard

Now that you have a linked wallet and the necessary assets to trade, you are free to use the Lighter frontend however you’d like. The different sections are broken out below for a brief tutorial on how the trading dashboard works.

  • Trade Tickets

    • Market: To switch what you are trading, click the name on the top left corner of the trading dashboard.

  • Direction: At the top of the order entry screen, you will need to select either Buy or Sell. If you have selected WETH-USDC, and you select Buy, you will be purchasing WETH and selling USDC. If you select Sell, you will be selling WETH and buying USDC.

  • Execute: If everything is all set, you will see the “Place Limit Order” or “Place Market Order” button, once you click that button, a popup to your connected wallet will ask you to confirm the details of your trade, if you click “accept” your order should be executed quickly.

  • Troubleshooting: As a reminder, if you see an error saying “Insufficient Balance,” you will need to return to your wallet to confirm you have the necessary assets for the required trade. See Step 3 for further clarification.

    • Insufficient ETH means you don’t have enough ETH to cover the gas fees

    • Insufficient WETH (or WBTC) means you are trying to sell something you don’t have in your wallet.

    • Insufficient USDC means you don’t have the cash needed to purchase.

  • Price Chart

    The charts on are traditional candlestick charts which can be displayed for a variety of timelines. The bars at the bottom of the page show volume data. The green candlesticks indicate a period of time where the price went up and the red candlesticks indicate a period of time where the price went down. The top “tail” of the candlestick shows the highest price that was traded during that period and the bottom “tail” shows the lowest price that was traded during that period.

  • Order Book

    The order book is set up with the offers (price someone is willing to sell) are on the top and the bids (price someone is willing to buy) are on the bottom.

Last updated