Topstep trade copier: beyond the one built into TopstepX

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

A Topstep trade copier mirrors one Topstep account onto others. TopstepX has one built in for Trading Combine and Express Funded accounts; Trading Floor connects TopstepX with your API key and mirrors a leader across Topstep and your Apex, MyFundedFutures, Rithmic and personal accounts, with a Daily Loss Limit guardian per account and every copy timed.

Does Topstep allow a trade copier?

Topstep documents its own copier inside TopstepX: a Lead account mirrors to one or more Follower accounts, it is available for Trading Combine and Express Funded accounts only (not Live Funded), the Lead must carry the lowest Maximum Position Size in the group, and a connected Follower cannot be traded directly. Followers keep a Personal Daily Loss Limit and Profit Target; other trade limits are not available on them. Third-party copiers are not addressed on that page, and Topstep’s general rules still apply — one profile per person, no hedging, your own trading only.

Source: TopstepX (Topstep help centre), read October 1, 2026. Firms change rules by plan and promo with no notice — check the current version of that page before you mirror, and see our rules by firm for the rest.

When the native TopstepX copier is enough — and when it isn’t

If every account you trade is a Topstep Combine or Express Funded account, the built-in copier is free and it is the obvious choice. It runs out of road in three cases: your other evals live at firms that aren’t Topstep (the native copier never leaves the building); you want a guardian that flattens at a cushion you set inside the Daily Loss Limit instead of relying on Topstep’s hard stop; or you want a Copy Log that shows the latency and the rejections of every copy. Those are the jobs Trading Floor was built for.

How it works with Topstep

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 (53ms 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.

Built around Topstep’s loss rules

Set the daily-loss guardian inside your Daily Loss Limit and a breach flattens that account and stops copying to it for the session, so your equity never has to meet the firm’s number. The Maximum Loss Limit (Topstep’s end-of-day trailing drawdown) gets its own guardian, and per-instrument contract caps are enforced before an order fires. One account hitting its line never stops the rest of the floor. Check any account’s live line on the Topstep drawdown calculator.

How to set up a Topstep 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 generated in TopstepX under Settings → API Key; every account under the login is pulled in.
3. Connect every follower login the same way. Mixed floors are normal: Topstep 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 Topstep 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.

Topstep copiers compared

Which third-party copiers reach TopstepX at all? The facts below are from each vendor’s own pages on October 1, 2026. TradeCopia, TradeSyncer and Thor list TopstepX or ProjectX; CrossTrade and Replikanto do not list it, so their platform cells say what they do list rather than guessing.

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.