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Relay supports depositing to Lighter from any supported chain. To try it today, use the Relay App. This document details how to integrate Lighter deposits into your application.
Currently, only deposits to Lighter are supported. Withdrawals from Lighter are not yet available.

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Prerequisites

Before you can bridge funds to Lighter, you must first set up an account on lighter.exchange. Once your account is created, you can retrieve your account index to use as the recipient for deposits.

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API Access

Lighter can be accessed using the standard Relay API flow. To get started, review the execution steps documentation. When you’re ready to execute deposits, refer to the Get Quote API endpoint.

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Lighter-Specific API Parameters

ParameterInputDescription
toChainId3586256Lighter Chain ID
recipientLighter Account Index (not a wallet address)
These parameters are specific to Lighter interactions. All other standard API parameters remain required.
The recipient parameter must be your Lighter account index, not your wallet address. See below for how to retrieve your account index.

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Getting Your Lighter Account Index

To deposit to Lighter, you need to use your Lighter account index as the recipient parameter. You can retrieve this using the Lighter API’s accountsByL1Address endpoint: 
curl 'https://mainnet.zklighter.elliot.ai/api/v1/accountsByL1Address?l1_address=YOUR_WALLET_ADDRESS'
Replace YOUR_WALLET_ADDRESS with your Ethereum wallet address. The response will include your accountIndex, which you should use as the recipient in your quote request. For more details, see the Lighter API documentation.

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Example Quote Request

curl 'https://api.relay.link/quote/v2' \
  -H 'content-type: application/json' \
  -d '{
    "user": "0xf3d63166f0ca56c3c1a3508fce03ff0cf3fb691e",
    "originChainId": 8453,
    "destinationChainId": 3586256,
    "originCurrency": "0x0000000000000000000000000000000000000000",
    "destinationCurrency": "0",
    "recipient": "509564",
    "tradeType": "EXACT_INPUT",
    "amount": "1000000000000000000"
  }'
In this example:
  • originChainId: 8453 - Depositing from Base
  • destinationChainId: 3586256 - Lighter chain ID
  • recipient: "509564" - Your Lighter account index (replace with your actual account index)
The response will include the execution steps required to complete the deposit. Follow the standard step execution flow to complete the transaction.