Account Owner Lookup
Description
Returns account details associated with a wallet address, including the internal accountId, publicKey, Loopring-specific tags, and signature-related fields used for authentication.
This endpoint is commonly used to:
Confirm a wallet’s registration on the Loopring protocol
Retrieve the public key components (
xandy) needed for off-chain operationsAccess signature seed values like
keyNonceandkeySeedfor signing transactions
Endpoint
GET /api/v3/accountRequest
address
string
(Optional) The wallet's public address. address or accountId is required.
0xbefa...b491
owner
string
(Optional) The unique ID of the user's Loopring DeFi account. accountId or address is required.
0xbefa...b491
⚠️ Either address or owner must be provided — at least one is required to query account owner details.
Response
accountId
number
The unique ID of the user's Loopring DeFi account.
302001
owner
string
The wallet address of the account owner.
0xbefa...b491
frozen
boolean
Indicates if the wallet is currently locked.
false
publicKey
object
An object containing the user's public key components (x and y), used for verifying off-chain operations.
[ ... ]
publicKey.x
string (hex)
The x coordinate of the elliptic curve public key, encoded as a hex string.
{x: 0x105b...627}
publicKey.y
string (hex)
The y coordinate of the elliptic curve public key, encoded as a hex string.
{y: 0x2d8e...566}
tags
string
A label describing the context or status of the account (e.g., FirstUpdateAccountPaid).
FirstUpdateAccountPaid
nonce
number
The current nonce of the user's exchange account, used to validate and sequence off-chain requests.
1
keyNonce
number
The nonce associated with the user's current signing key. It helps verify off-chain signatures and prevent replay attacks.
1
keySeed
string
The seed used to generate the user's L2 eddsaKey. Typically derived with L2_EDDSA_KEY = eth.sign(keySeed).
"Sign this message to access Loopring Exchange: 0x0BABA1...A4 with key nonce: 0"
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