Any regulated broker that supports MT4 or MT5. We recommend ECN/STP brokers with tight spreads for FX majors and metals.

We recommend $1,000+ to give the risk model proper room. Lower works for prop accounts where lot sizing follows firm rules.

Yes — the Prop Squad tier ships with presets that enforce daily and total loss limits in code, so you can't bust a challenge by accident.

Never. SIX runs on your broker terminal under your credentials. We never have withdrawal rights, ever.

SIX has a news filter and volatility circuit-breaker. When VIX-adjusted spreads cross threshold, it stops opening trades and tightens existing stops.