Software that automatically replicates trades from one account (master) to others (followers). This often uses the platform’s API or database: for instance, a cTrader copy-trader might use the Open API to push trades from a signal provider’s account to subscriber accounts. While not a distinct protocol, it represents a common integration scenario. Traders use copy-trading services to mirror expert strategies, and developers build the underlying systems (connecting to broker APIs) to sync orders across accounts in real time.

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