Seeking C2 Gen3 Broker

Seeking suggestions for an autotrade broker (US) that offers all trading instruments (FOREX, futures, equities/options) and C2 Gen3.

The chart here on C2 narrows those choices to MB Trading and IB. I’m a little discouraged by reviews that I’ve read for MB Trading.

Having some confusion with IB. The C2 website chart seems to state that a $99/mo. autotrade fee applies for stocks/options? And Gen3 is unavailable for those instruments? I phoned IB and spoke with three different people. They were unfamliar with C2 Gen3 but one person stated that there were no additional monthly fees for autotrading.

Thanks for any advice. Maybe a proper contact at IB?