Topstep and Trade Copiers: What Their Rules Allow (Honest Guide)

If you hold more than one funded account, you already know the real enemy isn't the market — it's execution drift. You take the A+ setup on account one, get a worse fill on account two, forget account three entirely, and by Friday three accounts that should look identical have three different equity curves.

A trade copier removes that whole failure mode: you trade once, and software places the same position on every account within moments. But before you wire anything to a Topstep account, you need to know what Topstep actually allows — because their rules are stricter than most, and staying funded matters more than any tool. This guide gives you the honest picture.

TopstepX exposes an official API, but Topstep's Terms of Use require every API request to originate from your personal device — VPS hosting, VPNs and remote servers are prohibited, and their gateway enforces this by rejecting requests from datacenter IP ranges outright. A cloud platform like MirrorChain runs on exactly that kind of infrastructure, which means a compliant cloud-to-TopstepX connection is not possible — for us or for any other hosted service.

So we don't offer one. Rather than route around Topstep's rules and put your funded account at risk, MirrorChain doesn't connect to TopstepX — and we have no workaround to sell you. If copying between your own funded accounts matters to your setup, firms that run on Tradovate or NinjaTrader rails are the compliant path.

For the funded platforms MirrorChain does connect — Tradovate and NinjaTrader, which power a large share of futures prop evaluation accounts — copying works like this: you organize accounts into a copy group with one leader account you actually trade and members that mirror it. Trade the leader, and every enabled member receives the same entry within the copy cycle.

Exits propagate too, which matters more than entries: when the leader's position closes — manually, by stop, or by target — each member's matching position is closed on its own account. Cross-platform members don't carry translated stop orders, so exit propagation is what keeps a member from riding a position the leader already left. You can read more about how grouping works in Copy Groups: Organizing Your Accounts.

A $50K account and a $150K account shouldn't trade the same size. MirrorChain balance-scales contracts: each member's quantity is derived from its balance relative to the leader's, rounded to whole contracts. Trade 3 MNQ on the leader and a member at a third of the balance takes 1 — proportional risk without per-account math at entry time.

Funded accounts live and die by daily loss rules, so the copier's risk management runs per account, around the clock: set a daily loss limit and the moment an account's realized-plus-floating P&L crosses it, that account is locked and its open positions are flattened — even if your screen is off. Profit targets and session locks work the same way, per account.

That protection is deliberately independent of the copying itself: a member that hits its limit stops receiving copies until its lock clears, while the rest of the group keeps following the leader.

Three rules matter if you trade Topstep, whatever tool you use. First, API activity must come from your personal device — no VPS, no VPN, no cloud service in the middle. Second, automation must be actively monitored; unattended bots are prohibited. Third, copying is only permitted between accounts you own — mirroring someone else's trades into a Topstep account is grounds for payout denial. Firms update these rules, so check Topstep's current policy before wiring anything up.

If you're weighing copiers across firms and platforms, the broader picture — MT5 prop firms, Tradovate-based firms, and how the rules differ — is covered in The Prop-Firm Trader's Guide to Trade Copiers. Or see pricing — every plan starts with a trial.