TradeCloner is a ProjectX trade copier for prop firm traders. ProjectX is the platform behind TopstepX and other prop firms' trading platforms, and TradeCloner connects ProjectX accounts as a Master or as followers. You trade one account, your Master, and TradeCloner copies its trades in real time to your follower accounts. It runs in the cloud, so your PC does not need to stay on.
Connect ProjectX
ProjectX connects with your ProjectX username and an API key, not an OAuth redirect.
- In TradeCloner, add a connection and choose ProjectX.
- Enter your ProjectX username and your API key. You generate the key from your ProjectX dashboard.
- Connect, and the accounts on that login become available to use as a Master or as followers.
TopstepX and other ProjectX firms connect the same way. The ProjectX connection guide has the details.
What gets copied
- Market, limit and stop orders. A market fill on the Master is copied to each follower, and a resting limit or stop is placed on each follower as a resting order.
- Modifications and cancellations. Move a resting limit or stop on the Master and the follower orders move too. Cancel on the Master and the follower orders are cancelled.
Not supported: stop-limit orders, trailing stops, multi-bracket orders, auto breakeven, and brackets sent through a TradingView webhook.
How followers are sized
- Multiplier from 1 to 50. The follower trades the Master's size times its multiplier.
- Fixed contract count. The follower trades the same count every time.
- Max contracts cap. A per-follower ceiling, so an account never takes more contracts than you set.
- Cross Order. A follower can trade the micro of the contract your Master trades, or the reverse, across eight pairs including ES and MES and NQ and MNQ. It changes the contract, not the count. See the mini to micro trade copier.
Protection
- Follower Protection. When your Master goes flat, any follower still holding the copied position is closed.
- Daily profit target and daily loss limit, per account. A follower that breaches one is flattened and locked, so no more copies go to it. Locks reset at 5 PM ET, Monday to Friday. A Master that hits its limit is flattened but not locked.
- Blown-account detection. If the broker closes an account, TradeCloner suspends copying to it.
More in prop firm risk management.
TopstepX accounts: check Topstep's rules first
Topstep's help article on TopstepX describes Topstep's own built-in trade copier. It says:
"Trade copying is only available for Trading Combine® and Express Funded Account® accounts. Live Funded Account® accounts cannot use the Trade Copier."
Topstep's article does not address third-party copiers. Ask Topstep before connecting one.
Source: Topstep Help Center, TopstepX. Rules checked: 7 October 2026.
For every other ProjectX firm: prop firms set their own copy trading rules and change them often. Check your firm's current rules before you connect a copier.
Mixed-platform groups
Your followers do not all have to be on ProjectX. A ProjectX Master can lead followers on Tradovate, NinjaTrader or Rithmic, and a ProjectX account can follow a Master on any of those platforms. One copy group is active at a time, with one Master. See the Tradovate trade copier, Rithmic trade copier and NinjaTrader trade copier pages.
Speed
TradeCloner's own processing adds well under 100 ms. The rest is the broker's order handling.
How it works
- Start your trial and connect ProjectX with your username and API key.
- Create a copy group. Choose your Master and add your followers.
- Set each follower's size. Multiplier or fixed contracts, a max-contracts cap, and Cross Order where needed.
- Turn on protection. Check that Follower Protection is on and set daily limits per account.
- Trade your Master. TradeCloner copies each order to every follower in the group.