ProjectX trade copier · Topstep compliant
Topstep compliant ProjectX trade copier with risk enforcement built in.
Copy futures trades into your ProjectX-connected prop firm accounts and apply account-level rules for daily loss, drawdown, profit protection, and account locks. Pair the Mimik ProjectX Bridge on your Windows PC — your username and API key go into the bridge, never into Mimik.
- Pair ProjectX accounts via the Windows bridge — the API key stays on your PC
- Per-account sizing and rule enforcement
- Cloud execution — no VPS, no local install
7-day trial · No VPS required · Cancel anytime
ProjectX is supported today. Connect each prop firm's ProjectX accounts with your platform username and an API key generated in your ProjectX platform. Topstep Live (funded) accounts are not supported for copy trading — use evaluation / simulated accounts as leaders and followers.
What you can do
Copy across ProjectX accounts with rules built in.
ProjectX is the trading technology behind a growing number of futures prop firms, including TopstepX. MimikTrader connects to ProjectX accounts through the ProjectX API, mirrors orders from a leader account to selected followers in real time, and enforces each account's risk rules on every tick.
- Connect ProjectX accounts with your platform username and API key
- Create copy groups with one leader and multiple followers
- Set follower sizing per account with a per-account multiplier
- Apply daily loss, drawdown, and profit drawdown enforcement per account
- Auto-flatten and lock breached accounts
- Record fills, orders, and breach events in the journal
How it connects
Connect ProjectX in a couple of minutes.
There's no OAuth redirect and Mimik never asks for your API key. Pick your prop firm in MimikTrader to get a one-time pairing code, install the small Mimik ProjectX Bridge on your Windows PC, and type your platform username and API key into the bridge — the key stays on your computer. Your accounts and balances appear the moment the bridge pairs.
- Generate an API key — In your ProjectX platform, open Settings / API and generate a new key. Click the eye icon to reveal it, then copy it in full.
- Get a pairing code — In MimikTrader go to Connections → Add Connection → ProjectX and choose your prop firm. Save shows a one-time pairing code and the bridge download.
- Pair the bridge — Install MimikProjectXBridge-Setup.exe, click Open bridge to pair, and type your platform username and API key into the bridge on your PC. Keep the bridge running while you trade.
- Group it — Add your ProjectX accounts to a copy group as followers alongside Tradovate, NinjaTrader, and Rithmic accounts.
Prop firm note
Compatible with ProjectX-routed prop firms.
Many futures prop firms route their accounts through ProjectX, including TopstepX. MimikTrader compatibility depends on whether your account routes through this broker connection — check your account routing before setting up copy trading.
Topstep Live (funded) accounts are not supported for copy trading and should not be added as leaders or followers in any copy group. MimikTrader is independent software; prop firm names are referenced for compatibility context only and do not imply affiliation or endorsement unless explicitly stated.
Risk Management
8 Pre-Trade Risk Checks on Every Account
Prop firm rules, account sizes, and policies are subject to change. Always verify current rules directly with your prop firm before configuring your risk settings.
- Daily Loss Limits — Automatic position flatten and account lock when daily loss threshold is reached.
- Trailing Drawdown — Equity high-water mark tracked on every price tick — essential for prop firm accounts.
- Profit Drawdown Protection — Cap give-back from your daily peak to protect gains.
- Auto-Flatten & Lock — Instant position closure the moment any risk rule is breached.
- Per-Account Multipliers — Size each follower up or down from the leader independently.
- Weekly Limits — Cumulative weekly loss and profit controls across multiple sessions (verify current wiring for your account).
- Max Daily Trades — Limit round-trip trades per day to stay within firm guidelines.
- Tick-Level Enforcement — Risk rules checked on every market tick, not just at trade entry.
In a live trade
What happens when one account breaks a rule?
One leader trade. Five follower accounts. One breach. Here is what MimikTrader does about it.
Copy group · 1 NQ contract leader trade
After breach event
Account
Firm / size
Status
Day P&L
Account 01
Apex 50K Eval
Active+$420
Account 02
Topstep 50K Funded
Active+$380
Account 03
MFFU 50K Eval
Locked-$1,000
Account 04
Bulenox 100K Eval
Active+$840
Account 05
Tradeify 50K Eval
Active+$420
Step 01
Trade copied across five accounts
You place a trade on the leader account. MimikTrader sends the correct order to each follower based on its copy settings.
Step 02
One account reaches its daily loss limit
Account 03 hits the configured daily loss threshold while the copied position is still live.
Step 03
MimikTrader flattens the affected account
The breached account is closed according to your configured flatten rule.
Step 04
The account is locked
New copied trades are blocked from entering that account until the lock is cleared.
Step 05
Other accounts keep running
Accounts 01, 02, 04, and 05 continue following the copy group because they did not breach their rules.
Step 06
The event is recorded
The fill, breach, flatten action, account lock, and timestamp are written to the trade record.
ProjectX copier features
- Windows-bridge ProjectX pairing — your API key never reaches Mimik
- Multiple ProjectX accounts under one connection
- Real-time trade copying
- Cross-platform copying — ProjectX, Tradovate, Rithmic in one group
- Per-account sizing multipliers
- Complete risk management — all eight pre-trade checks
- Tick-level trailing drawdown monitoring
- Daily loss limits with auto-flatten and lock
- Profit drawdown protection
- Weekly limits and max daily trades
- Automated journal and audit trail
FAQ
ProjectX Trade Copier Questions
Yes. ProjectX is supported today. Pick your prop firm in MimikTrader to get a pairing code, install the Mimik ProjectX Bridge on your Windows PC, and type your platform username and API key into the bridge — Mimik never receives the key. Keep the bridge running while you trade.
ProjectX is a trading platform that provides futures order routing and execution. It is used by several prop firms — including TopstepX — as their trading technology backbone, offering charting, order entry, and real-time market data. Some prop firms offer ProjectX alongside Tradovate or Rithmic routing.
In your prop firm's ProjectX platform, open Settings / API and generate an API key (click the eye icon, then copy it in full). In MimikTrader, go to Connections → Add Connection → ProjectX and select your prop firm — Save shows a one-time pairing code and the Windows bridge download. Install the bridge, click Open bridge to pair, and type your platform username and API key into the bridge. Your accounts and balances appear once the bridge pairs.
Error code 3 means 'Unauthorized' and is almost always a credential input issue, not a MimikTrader problem. Double-check the key you typed into the bridge: it must be linked to your ProjectX account, copied in full with no missing characters (paste into Notepad first to verify), and revealed with the eye icon before copying. For the username, try the username shown on your prop firm dashboard, your account email, or the username you use to log in to your ProjectX platform. Then open the bridge and pair again with the corrected details.
No. MimikTrader does not support copy trading on Topstep Live (funded) accounts. ProjectX Live accounts should not be added as leaders or followers in any copy group. Use evaluation / simulated ProjectX accounts for copy trading.
If you include a ProjectX account as a follower, make sure ProjectX-side Position Bracket and OCO Bracket automation is turned off on that account, as it can interfere with replication. As long as accounts don't overlap, you can also run replication on the ProjectX side and only include the ProjectX leader account in a MimikTrader group — customize the setup however you like.
Yes. You can copy across ProjectX, Tradovate, and NinjaTrader accounts in a single copy group. Lead from a Tradovate, NinjaTrader, or Rithmic account and include ProjectX accounts as followers — TopstepX's one-session-per-account rule means a ProjectX account connected through the bridge shouldn't also be driven from the TopstepX platform.
Yes — ProjectX is the one integration that runs through a small Windows app, the Mimik ProjectX Bridge. It keeps your API key on your own PC (Mimik never receives it) and relays orders and fills. Keep the bridge running while you trade; Tradovate and Rithmic connections remain fully cloud-based with nothing to install.
Use ProjectX accounts as followers (copy destinations). TopstepX allows only one active session per account — while the bridge is connected through the API, also logging into the TopstepX platform will disconnect one of the sessions. Lead from a Tradovate, NinjaTrader, or Rithmic account (or TradingView) and let the bridge copy into your ProjectX accounts.
Start Copying ProjectX Trades Today
Pair your ProjectX prop firm accounts through the Mimik Windows bridge — your API key never leaves your PC — and copy trades into them with built-in risk management.
7-day trial · No VPS required · Cancel anytime