Liquid

Liquid is a trading platform focused on perpetual futures, offering leveraged, around-the-clock trading through multiple interfaces and venues. Its documented Co-Invest interface provides market research, position sizing, and trade execution through Claude, ChatGPT, iMessage, and a Chrome extension; trades require the user's confirmation before submission. The Co-Invest page says Liquid also supports crypto, stocks, indices, commodities, and major foreign-exchange pairs, with features such as long and short positions, multipliers, stop-losses, take-profits, and paper trading.