Sub account
Overview
Sub-accounts allow you to run multiple independent trading strategies under a single master account. Each sub-account maintains its own positions, assets, and API keys, enabling effective risk isolation across different strategies.
1. Requirements & Limits
Item
Rule
Minimum VIP level
VIP 2 or above, or MM accounts
Maximum sub-accounts
Up to 15 per master account
Sub-account nesting
Not supported
If your VIP level is below VIP 2, please upgrade before using the sub-account feature.
2. Creating a Sub-Account
2. Creating a Sub-Account
How to Create
Connect your master account wallet on Aster Web.
Click your wallet address (top-right) → Sub-account management → Create Sub-account.
Enter the sub-account name and configure trade settings (asset mode, position mode, etc.)
Save your private key immediately. The system generates a wallet address and private key (EVM or Solana, matching your master account type). This key is shown only once and is never stored by Aster.
Click Confirm and save, then confirm again in the second prompt. After closing the dialog, the key CANNOT be recovered.
Each sub-account creation requires a wallet signature from the master account.
Reminder: Aster never stores your private key. If you lose it, you cannot independently log in to or manage that sub-account. Save it to a secure location before dismissing the dialog.
Naming Rules
6 to 20 characters
Must include at least one letter
Numbers are allowed
Special characters are not supported
3. Account Switching
After creating sub-accounts, a dropdown menu will appear in the wallet panel.
First switch requires a wallet signature
Subsequent switches do not require re-signing (unless session is reset)
Important:
Switching is only available when logged in as the master account
When logged in directly as a sub-account, switching to other accounts is not supported
4. Fund Management
Sub-accounts support deposits, internal transfers, but not direct withdrawals.
Deposits
Sub-accounts support the same on-chain deposit methods as the master account.
The system will remind you to confirm that you have saved your private key
Solana deposits directly to sub-accounts are not supported (Use internal transfers as an alternative for Solana)
Internal Transfers
Internal transfers between master and sub-accounts are:
Instant
No fees
Supported transfer directions (when logged in as master):
From
To
Master (Futures / Spot)
Sub-account (Futures / Spot)
Sub-account
Master (Futures / Spot)
Sub-account
Another sub-account
Additional rules:
Each transfer requires a wallet signature
Only assets with balance > 0 are displayed
Assets are sorted by value
Transferable amount equals withdrawable balance
When logged in as a sub-account, transfers are limited to the master account only
Withdrawals
Sub-accounts cannot withdraw directly. To withdraw from sub-accounts, transfer funds to the master account, then withdraw from the master account.
5. Feature Permissions
Feature
Master Account
Sub-Account
Futures & Spot trading
Yes
Yes
On-chain deposits
Yes
Yes
Withdrawals
Yes
No
Internal transfers
Yes (Unrestricted)
To master only (when logged in as sub)
Create / manage sub-accounts
Yes
No
Account switching
Yes
No
API key limit
30
10
API withdrawal permission
Enabled
Permanently disabled
Referral binding between master & sub-accounts
No
No
Email login support
—
Not supported
6. Freezing & Unfreezing Sub-Accounts
Freeze a Sub-Account
Go to Sub-account management → click [⋯] → Disable sub-account → click confirm
After freezing:
New positions are not allowed
Existing positions remain open, and will not be forced closed.
One-way mode: only reduce-only orders allowed
Hedge mode: only closing positions allowed
Unfreeze a Sub-Account
Go to Sub-account management → Click [⋯] → Enable sub-account to restore normal trading functionality.
Note: Deleting sub-accounts is not supported in the current version.
7. Sub-Account API Keys
Each sub-account can create up to 10 API keys (master account limit: 30)
Sub-accounts only support V3 API
Withdrawal permission is permanently disabled on all sub-account keys — calling the withdrawal endpoint returns a permission error.
To create a sub-account API key:
Log in as the master account
Switch to the target sub-account
Create the API key (sub-account limit: 10)
8. VIP Level & Leaderboard
VIP level is calculated based on combined data from the master account and all sub-accounts
The entire account group shares the same VIP tier and benefits
On the leaderboard, only the master account address is displayed
Sub-account trading volume is aggregated into the master account
9. Referrals & Other Features
Feature
Description
Referral / rebates
Each account participates independently, rebates are calculated separately
Portfolio view
Each account sees its own assets (master aggregation is planned for future release)
USDF
Participated independently per account
Invitation relationships
Master and sub-accounts cannot refer to each other. Each account can establish its own referral relationship with an unrelated third party
Trades between master & sub-accounts
Counted as self-trading
10. Frequently Asked Questions
10.1 Can I log in directly with a sub-account?
Yes. Use the sub-account's wallet address and private key to log in. However, switching to master account or other sub-accounts is not supported within the same session.
10.2 What if I lose the sub-account private key?
It cannot be recovered. Aster does not store private keys. Always save your private key securely when creating the sub-account.
10.3 Why can't I create a sub-account?
Sub-account creation requires VIP 2 or above. Please check your current VIP level.
10.4 Can a sub-account create its own sub-accounts?
No. Only the master account can create and manage sub-accounts.
10.5 Can email-login accounts use sub-account features?
No. Sub-account functionality is only available for wallet-connected accounts.
10.6 Can I transfer funds to another sub-account when logged in as a sub-account?
No. When logged in directly as a sub-account, transfers are limited to the master account only.
To transfer between sub-accounts, log in as the master account and perform an internal transfer.
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