Bitcastle presents itself as a global crypto-asset and FX trading platform that offers services like high-leverage trading and binary options. However, it lacks registration with Japan’s Financial Services Agency, placing Japanese users outside the scope of domestic regulatory protections. The site https://bitcastle.org/ shows some positive features, but independent reviews note limited transparency, new domain registration and a moderate trust score—so potential users should proceed with caution and conduct their own due diligence.