MT4 to cTrader Trade Copier

An MT4 source account can drive cTrader followers, and the copy itself is the straightforward part: a position opens on MT4, so a position opens on each cTrader follower, and a close repeats too: a partial one is sized by the repeater's rule, and closes the whole copy if it is too small for the follower's minimum. The work is either side of that loop, and it is almost always the instrument name. MT4 brokers write index CFDs closed up and abbreviated — US500, USTEC, GER40 — and some decorate a whole family with a leading hash, so the DAX arrives as #Germany40. cTrader brokers spell the same instruments with spaces: US 500, US TECH 100, GERMANY 40. One index, several strings, none of which a plain comparison matches. Currently demo accounts only on both platforms: prop-firm evaluation and funded accounts usually run on demo accounts — MetaTrader demo servers, or a cTrader demo account where the firm issues one — which is what Trepeat connects. Live real-capital accounts aren't supported.

Index names are the thing to fix first

The order carries the instrument your MT4 account traded. If the cTrader follower's broker doesn't list that exact string there is nothing valid to place, so Trepeat doesn't send it and records a failed copy, with the reason and an alert. A repeater-level symbol remap translates the name — US500 to US 500, USTEC to US TECH 100, GER40 to GERMANY 40 — before each fill is submitted.

Suggested, never applied silently

Trepeat reads a cTrader account's symbol list the moment you add it, and when you create a remapping it proposes the matching name: it recognises the spaces cTrader uses in index names, broker decorations such as a trailing .r or m, and a curated list of instruments that go by different names. A suggestion is only ever offered — choosing the instrument an order lands on stays your call.

No cTrader password to hand over

The MT4 side takes a server name, account number and password, stored only in Supabase Vault, encrypted at rest, and also passed to the bridge service that runs the MetaTrader connection. The cTrader side takes no password at all: you sign in with your cTrader ID on cTrader's own site, tick the trading accounts to authorise, and can withdraw that access from the same place later.

Sizing snapped to the cTrader follower's own step

cTrader expresses volume in units of the instrument, and how many units make a lot is a per-symbol figure rather than a constant — so each symbol's minimum, step and maximum are read from the follower's broker. Your repeater's sizing rule produces a lot size, that number is snapped to the follower symbol's step, and anything below its minimum is skipped rather than sent as an invalid order.

A netted cTrader follower is flagged when it counts

Every MT4 account behaves as hedging, but a cTrader account is Hedged or Netted, chosen when the broker created it. A netted follower merges same-symbol positions instead of opening a second, so the copy stops being exact at the second copy on a symbol. Trepeat raises that alert at the moment a copy is about to stack on a symbol that follower already holds — the point at which its exposure actually stops matching the source.

Built for evaluation + funded accounts

Prop-firm evaluation and funded accounts usually run on demo accounts — MetaTrader demo servers, or a cTrader demo account where the firm issues one — which is exactly what Trepeat currently connects. Run your evaluations and funded accounts side by side, each repeater with its own sizing and symbol rules. A challenge placed on a live account can't be connected either way. We don't share data with prop firms or read their evaluation rules.