TopstepX trade copier: the built-in one, honestly, and what picks up after it

By Kenten Kronemann (Kenny Trades) · Last updated October 1, 2026

TopstepX includes a trade copier — credit where due — that mirrors a Lead account to Follower accounts inside Topstep, free, for Trading Combine and Express Funded accounts. Trading Floor connects TopstepX with your API key and runs it as one floor with your Tradovate, Rithmic and Volumetrica accounts, with per-account guardians and every copy timed.

The native TopstepX copier, as Topstep documents it

From Topstep’s help centre (TopstepX, read October 1, 2026): one Lead account mirrors to one or more Follower accounts; it is available for Trading Combine and Express Funded accounts, not Live Funded; the Lead must have the lowest Maximum Position Size of the group; a Follower that is connected cannot be traded directly (greyed-out order buttons mean it is still linked); Followers keep a Personal Daily Loss Limit and Profit Target but not the other trade limits; and if Lead and Followers sit on different Scaling Plan tiers the copier may disconnect at the start of a new day. Setup is Settings → Copy Trading. It is free, and if everything you trade is at Topstep it is the obvious choice. Verify current behaviour on that page — their rules, their product.

Where it can’t go

• Other firms. Your Apex, MyFundedFutures, Tradeify or personal accounts aren’t invited. A cross-firm floor needs a copier that connects each firm’s platform directly.
• A cushion before the line. Topstep enforces its Daily Loss Limit and Maximum Loss Limit as hard stops. A guardian that flattens at a cushion you set inside the firm’s number is a different product.
• Receipts. There is no per-copy latency or rejection log to read. You find out how a copy went from the fills.

How Trading Floor connects TopstepX

Connecting TopstepX accounts: username + API key

TopstepX (and other ProjectX-based dashboards) connect with your TopstepX username and an API key you generate yourself inside TopstepX under Settings → API Key. No password leaves the firm’s site; the key is stored encrypted, and every account under that login is pulled in automatically. Topstep documents API access in its help centre (TopstepX API Access) — check there for its current terms.

What gets copied

The engine mirrors the leader’s net position per contract onto each follower, scaled by that follower’s multiplier and clamped by its max-contracts cap. Entries, scale-ins, partial exits, flattens and reversals all land on every follower, sized for that account. Mirrored stop and target legs go out as one broker-side OCO pair on Tradovate; on TopstepX, Rithmic and Volumetrica they are two orders, and the copier cancels one when it sees the other fill. A limit entry is mirrored as a limit and given a few seconds to fill at your price before the engine backstops it, and your first live session runs under Safe Start: one contract per follower until you lift it or set that account’s cap.

How fast, and how you check

Every copy prints two numbers in your Copy Log: the engine’s own share (detect the fill, size each follower, submit) and the broker’s wire time, attributed separately so a slow gateway is never disguised as engine speed — or vice versa. The platform-wide median copy, the engine’s p95 and the share of copies above the disclosed 200ms cutoff are published live from real production orders (54ms median copy, fill to follower). Copy delay is slippage handed to every follower on every entry, so we show the number instead of describing it.

Risk guardians, per account

Each follower carries its own drawdown, daily-loss and profit-target guardian. Set a guardian a cushion inside the firm’s number and a breach auto-flattens that account and stops copying to it — while the rest of the floor keeps running. The firm presets (Apex, Topstep, MyFundedFutures, Tradeify and others) apply in one click and use the same drawdown model as the free trailing drawdown calculator.

How to set up a TopstepX trade copier, step by step

1. Create a Trading Floor account at /signup and pick a plan: Starter ($25/mo) runs up to 20 accounts across two broker logins, Pro ($50/mo) runs 120 across unlimited logins. The first month is free.
2. Connect the login that holds your leader. TopstepX connects with your username and an API key from Settings → API Key; every account under the login is pulled in. Tradovate logins connect with OAuth, Rithmic logins with your Rithmic user and system.
3. Connect every follower login the same way. Mixed floors are normal: TopstepX accounts next to accounts at other firms, personal accounts, or a TradingView strategy as the signal source.
4. Crown the leader and enable followers. One account leads; tick the accounts that should mirror it. A disabled account is left completely alone.
5. Size each follower. Set a multiplier (or a fixed contract count) and a max-contracts cap per account, so a 50k eval and a 150k funded account never share one setting.
6. Arm the guardians. Apply the TopstepX preset, then nudge the drawdown and daily-loss lines to leave the cushion you want. Guardians act per account at your line.
7. Run Test floor, then Start. Test floor checks every connection and your copy wiring without placing an order. First session: Safe Start holds followers at one contract until you set a cap.
8. Trade the leader normally and read the Copy Log. Every copy shows its fill, its engine latency and the broker’s wire time; rejections and skips appear with a reason instead of vanishing.

Copiers that reach TopstepX / ProjectX, compared

ProjectX went Topstep-exclusive in early 2026, so “ProjectX support” today means TopstepX. The table is what each vendor’s own pages said on October 1, 2026; a platform cell lists exactly what the vendor lists, and a blank cell is a fact we could not verify.

Rules first

Topstep prohibits coordinated trading with other people — copying is for accounts you own and trade, under one Topstep profile. Its help centre documents the native copier’s rules in detail and does not address third-party copiers on that page, so read the current version and check your firm’s current rules before you mirror. Our sourced rules by firm covers the other firms on your floor.

What it costs

Starter is $25/month for up to 20 accounts across two broker logins; Pro is $50/month for up to 120 accounts across unlimited logins. Yearly billing is ten months’ price. There are no per-account fees and nothing to host. Between evals you pause instead of cancelling — settings, journal, payout tracker and streaks wait for you. The first month is free, so the honest way to evaluate it is to run one real session and read your own Copy Log. Plans in plain text: /pricing.md.