How to Create and Manage MEXC Sub-Accounts: Types, Limits and API Setup

A MEXC sub-account is a separate account that sits under your main account, with its own balances, so you can keep funds and trading activity apart without opening a second MEXC account.

You create and manage sub-accounts on the MEXC website under Sub-Account Management, choosing between an API sub-account with no login and an email sub-account that can log in on the website.

Key Takeaways:

• MEXC offers two sub-account types: an API sub-account (no login, used through API keys) and an email sub-account (web login with its own email and password).
• You can create up to 30 sub-accounts, and the counter on Sub-Account Management counts both types together.
• Sub-accounts inherit the main account's spot fee level, cannot complete KYC, and are funded by internal transfers rather than on-chain deposits.
• The main account can freeze a sub-account, enable futures, change an email sub-account's password or email, and review its login history.
• API keys that are not linked to an IP address are valid for 90 days, and the Secret Key is displayed only once.

What Is a MEXC Sub-Account?

A sub-account is an account created and controlled by your main MEXC account, used to split trading activity, for example spot trading in one sub-account and futures trading in another.

MEXC offers two types, and the table shows how they differ.

Every new sub-account inherits the spot fee level of the main account.

Sub-accounts cannot complete KYC and cannot receive on-chain deposits, so they are funded by transfers from the main account, as our MEXC account problems guide also explains.

What Are MEXC Sub-Accounts Used For?

Sub-accounts are used to keep funds apart, to give someone access without sharing the main login, and to run API trading in a separate account.

Keeping Funds Separate

Each sub-account has its own Spot and Futures balances, so assets moved into it are kept apart from the main account and from other sub-accounts.

The main account sees each sub-account's assets under Asset Management and every transfer under Transfer History.

Separate Access for a Team Member

An email sub-account has its own login, so a team member can use it without the main account's password.

The main account keeps control, because it can freeze the sub-account, change its password or email address, and check its login history.

API Trading

An API sub-account has no login and works only through the MEXC API keys created for it, so automated trading runs in its own account.

Each sub-account has its own set of API limits, according to MEXC's sub-account launch announcement.

How Do You Create a MEXC Sub-Account?

You create a sub-account on the MEXC website, and the steps differ only in the details each type asks for.

Open Sub-Account Management

Log in to the MEXC website, click the profile icon in the top-right corner, and select Sub-Account Management.

Click Create a sub-account, choose the type, and click Next Step.

Create an API Sub-Account (No Login)

Choose "Trade only through the API, no login permissions", then enter a username of 8–32 characters with numbers and letters, and add notes if you like.

Click Next Step and complete the security verification to create the sub-account.

Create an Email Sub-Account (Web Login)

Choose "Only web login is available, and email verification is required", then enter the sub-account's email address, a login password twice and the email verification code.

Click Next Step and finish the security verification, and the email sub-account appears in your list.

How Do You Manage MEXC Sub-Accounts?

Sub-Account Management has five tabs: Account Management, API, Asset Management, Transfer History and Login History.

Account Management

Click the three-dot icon (…) next to a sub-account to manage it.

For an API sub-account you can Freeze it or Enable futures, and for an email sub-account you can also Change Password and Change email address.

In the list, a check mark means a feature is enabled or verified and a crossed circle means it is not, so the Futures column changes from a crossed circle to a check mark once futures is enabled.

API Keys for an API Sub-Account

Under the API tab, click Create an API, select the API sub-account, tick the Spot and Futures permissions it needs, enter the required notes, click Create and complete the security verification.

Linking an IP address is optional, but keys that are not linked to an IP address are valid for 90 days only, which MEXC marks as not recommended.

MEXC then shows an Access Key (the API key) and a Secret Key, and the Secret Key is displayed only once, according to MEXC's sub-account and API key setup manual.

Store both keys safely, never share them, and if a key may have leaked, delete it from the API list and create a new one.

Asset Management and Transfers

Under Asset Management, click Transfer, choose the sending account and wallet (Spot or Futures), the receiving account and wallet, the crypto and the amount, then click Confirm.

MEXC's sub-account API documentation lets the main account set both the sending and the receiving account, so assets can move between the main account and a sub-account or between two sub-accounts, and each transfer is listed under Transfer History.

Transfers between the main account and sub-accounts are free of charge, according to MEXC's sub-account launch announcement.

Click Info next to a sub-account to see the assets it holds.

Login History

An email sub-account can log in to the MEXC website on its own, and each of those logins is recorded in the main account.

Under Login History, the main account sees the sub-account, login time, login IP and location for each login.

If a login looks unfamiliar, freeze the sub-account under Account Management and change its password.

How a freeze on your main account works, and how it is lifted, is covered in our guide on how to unfreeze a MEXC account.

Go to the MEXC Website

FAQ

How many sub-accounts can I create on MEXC?

You can create up to 30 sub-accounts, with API and email sub-accounts counted together.

Can a MEXC sub-account complete KYC?

No, KYC verification is not supported for sub-accounts.

Can I deposit crypto directly to a sub-account?

No, on-chain deposits to sub-accounts are not supported, so you fund them by transferring from the main account.

Do sub-accounts pay the same trading fees as the main account?

A new sub-account inherits the spot fee level of the main account.

How long is a sub-account API key valid?

A key that is not linked to an IP address is valid for 90 days, which is why MEXC recommends linking one.

Related Articles

• MEXC Account Problems? Fixes for Login, KYC, Frozen Accounts and Withdrawals
• MEXC Account Frozen? Withdrawal Limits & How to Fix Restricted Account Issues
• What is a Passkey?
• How to Sign Up for MEXC: Web and App (Email, Phone, Google, Apple, Wallet)

Trading crypto assets is high-risk; prices can be highly volatile and you may lose everything you put in. No security measure removes all risk, and MEXC does not promise principal protection or absolute security. This article is not investment advice.