Connect a Rithmic account
Your Rithmic login goes in on the Accounts page. One passing Test later, MirrorFill knows every trading account on that login and offers them in the Copy Rules pickers. You need three things: your Rithmic username, your password, and the name of the system your accounts run on — it is in your prop firm's welcome e-mail.
Steps
- Open Accounts and click Add connection. Give the connection a name — up to 32 characters, something like "My Apex eval".
- Pick the Rithmic tile in the platform picker.
- Choose your System. The dropdown is pulled live from Rithmic when the form opens. If the live list cannot load, the form says "Showing the standard list" and falls back to known systems: Rithmic Test, Rithmic Paper Trading, Rithmic 01, TopstepTrader, Apex, LucidTrading, MES Capital, TradeFundrr, UProfitTrader, Leeloo Trading, and Earn2Trade. Not sure which one is yours? See Rithmic systems and gateways explained.
- Enter your Username and Password. Both are case-sensitive. There is no gateway field — every connection uses Rithmic's Chicago Area route, so there is nothing to choose and nothing to get wrong.
- Press Test. A working login answers "Connected. N accounts found:" followed by your account ids. A failure answers "Could not connect:" with the reason.
- Click Add connection to save. A saved, enabled connection looks up its accounts right away, so they show in Copy Rules without another click.
If Test fails
"Could not connect" on a Rithmic login almost always comes down to one of these:
- Unsigned market-data agreements. A fresh Rithmic login cannot connect until its market-data agreements are signed. Log into R|Trader once with the same credentials, sign the agreements there, then Test again.
- Case-sensitive credentials. Rithmic usernames and passwords are case-sensitive. If a paste keeps failing, retype them.
- Whitespace pasted with the username. Copying from a welcome e-mail often drags a trailing space along. Delete and retype the last character if in doubt.
- The login is in use somewhere else. Rithmic allows one session per login — signing in from a second place ends the first. Close R|Trader or your firm's platform before you Test with the same credentials.
Quick answers
Where do I find my system name?
In the welcome e-mail from your prop firm or broker — it is usually the firm's own name in the list. Details in Rithmic systems and gateways explained.
Why is there no gateway dropdown?
A gateway is only the route to a system, never part of your login. MirrorFill fixes every connection to the Chicago Area route, so there is no wrong answer to give.
Does Test place any orders?
No. Test signs in and lists the trading accounts on the login. It never places orders and it never starts the copier.