ProjectX / TopstepX trade copier

Supported

• Leader and follower. Any connected Topstep account can lead a copy group or follow one, at its own multiplier from ×0.1 to ×5.
• Take-profit and stop-loss on followers. Switch on Auto OCO for the group in Replica, and set the account to Auto OCO brackets in TopstepX: the copied entry then carries the take-profit and stop-loss as one bracket, at the same distance in ticks from the follower’s own fill.
• Brackets on a TopstepX leader. An Auto OCO bracket on the leader, or a stop and a limit added by hand, is copied to followers.
• The TopstepX platform stays open. You can keep trading from TopstepX while Replica copies.
• API key stored encrypted. The ProjectX API key is stored encrypted on the computer that runs Replica.
• Per-account risk rules. Daily Loss, Daily Profit and Trades Limit per account, with optional Enforce, plus Flatten and Flatten All.

Not supported

• Other ProjectX prop firms. ProjectX ended API access for third-party firms on February 28, 2026; only Topstep accounts can be connected.
• Topstep Live Funded accounts. Topstep does not allow the ProjectX API or a copier on Live Funded accounts.
• A VPS or remote server for Topstep. Topstep requires API orders to come from your own device, so run Replica on your own PC.
• Two exits without Auto OCO. Without Auto OCO, a TopstepX follower holds one protective order (the stop when the leader has one), never two unlinked exits.
• TopstepX’s own Trade Copier on the same accounts. Turn it off on every account Replica copies into; two copiers on one account copy each trade twice, and accounts it controls refuse Replica’s orders.
• Several API tools on one login. ProjectX request limits are per login and shared by every API tool signed in with it. Use one API tool per TopstepX login.
• Copying working orders, trailing stops and stop-limit exits. Entries are copied when they fill; trailing and stop-limit exits are not copied as a static order.
• MetaTrader 4 or 5, forex, crypto or stocks. Replica is for futures only.
• Mac, phone and cloud versions. Not yet: they are coming soon. Today Replica runs on Windows and copies only while the app is open.
• TradingView alerts or webhooks as a leader. Replica copies trades that fill on the leader account, not alerts.

How to set it up

1. Get a ProjectX API key for your TopstepX login.
2. Install Replica on your own Windows PC (not a VPS) and sign in.
3. Open Connections, choose ProjectX (Topstep), and enter your platform username and the API key.
4. In TopstepX, turn the Trade Copier off on every account Replica copies into.
5. For take-profit and stop-loss on followers, set those accounts to Auto OCO brackets in TopstepX and switch on Auto OCO for the group in Replica.
6. Create the copy group in Cockpit, set daily limits on the Risk page, and test with one micro contract.

Read more

• Step by step: Connect TopstepX (ProjectX)
• The background: Copying trades on TopstepX
• Firm rules: which prop firms allow a trade copier
• Every setting: how the copier works