Prop Firm Rules and Automation: Check the Firm Before You Build

Traders look at automation for prop firm evaluations because the trailing drawdown punishes the exact habits discretionary traders have. Before building anything, read the firm's rules on automation, because some prohibit it. Apex does. Its prohibited activities page and user agreement prohibit automated or algorithmic preset bots that place, modify or cancel trades without your personal real-time review. YMI bots are not Apex compatible and are not an evaluation-passing tool, and nothing here suggests otherwise.

Why the trailing drawdown hurts discretionary traders

Many evaluations use a trailing drawdown: the loss floor rises as your account high rises, and in some rule sets open profit counts toward that high. Here is a hypothetical $50,000 evaluation with a $2,500 trailing drawdown. These are illustration numbers, not any firm's current terms.

The account ended the middle step exactly where it started, yet $1,000 of buffer is gone for good. Whether open profit counts, when the floor stops trailing, and whether there's a separate daily limit all differ by firm, account type and when the account was opened, so read your own rule set.

That structure punishes the usual patterns: revenge trading after a loss, sizing up after a win, and holding a winner past the plan until it hands back the buffer.

What automation does and doesn't fix

Automation can remove in-the-moment decisions, apply the same rules every session and react faster than a person. It doesn't remove market risk or slippage, since stop orders can fill worse than the stop price, and a bug or a dropped connection can do more damage than a human mistake because it repeats at machine speed.

What to verify firm by firm

1. Find the firm's prohibited activities page and the account agreement, and read the automation language word for word.
2. Check whether it applies to evaluation accounts, funded accounts or both, and whether it depends on the account product.
3. Check how it treats ATM strategies, scripts, trade copiers and platform add-ons, which can be treated differently from fully automated bots.
4. For Topstep, read the TopstepX API access article. It documents API access on simulated accounts, not live, from a personal device only, with VPS, VPN and remote-server order transmission prohibited.
5. For Tradeify, read its trader guidelines. Personal bots are allowed only if you prove sole ownership, nobody else uses or accesses the bot or strategy, it runs exclusively at Tradeify and not across multiple firms, and it isn't high-frequency. The firm can request live video or ownership proof, so a shared commercial bot isn't implied to be approved.
6. Ask support in writing and keep the reply.
7. Re-check at every new account or reset. Firms change rules, and an exchange-traded ES or NQ evaluation isn't interchangeable with a firm like FTMO that works differently.

Enforcing discipline manually

If the firm requires personal real-time review, put the rules in your plan before the open. Pick a personal daily loss limit well inside the drawdown. As a hypothetical, 40% of a $2,500 drawdown is $1,000. Pick a per-trade risk too, say $250. A 10-point stop on MES costs $50 per contract at $5 per point, so $250 allows 5 contracts. On ES at $50 per point, a 5-point stop is $250 per contract, so 1 contract. Leave room for slippage, because a stop that fills 2 points worse on 5 MES contracts costs another $50.

Place the stop when you enter, stop trading when the daily limit hits, and close the platform. The Apex evaluation preparation guide walks through the same math in more detail.

A pre-session check

1. Confirm the platform is connected to the account you intend to trade.
2. Write down the daily loss limit and the per-trade risk.
3. Check the economic calendar for scheduled releases.
4. Confirm remaining drawdown buffer from the firm's dashboard, not from memory.

Where bots belong

YMI bots are for SIM practice and for accounts where the rules allow automation. Bot access sits in Pro at $795/month with no trial. Intro and VIP don't include bots. Behavior and current variants are documented in the Marty Bot specs, and they shouldn't be read as a way to pass any prop firm evaluation.