I just explored some free AI tools that support trading, and a few are quite good for you to try. First is TradingView, which isn't entirely AI but has smart indicators and allows you to write scripts in Pine Script to automate your strategies. The great thing is it supports backtesting strategies; the free version is quite comprehensive, and the pro version offers additional advanced tools.

Then there's TrendSpider, which is powerful because its AI automatically recognizes price patterns, draws trendlines, Fibonacci levels without manual input. It alerts you to trading signals when opportunities arise, but the free version has limited features, and the paid version offers more powerful AI.

As for Tuner AI, it focuses on analyzing on-chain data and market sentiment. It suggests entry points based on AI data. The basic version is free but can be upgraded to premium.

If you want fully automated trading, CryptoHopper is a good choice. It uses AI to optimize strategies and supports major exchanges. The free plan exists but limits the number of trades. Similarly, 3Commas is an AI trading bot for automatic DCA, Grid Trading, with AI integration to help manage risk. It has a free version but limits the number of bots.

Depending on your needs—whether you want fully automated trading or just AI-assisted technical analysis and signals—each tool has its own advantages. Use the one that fits your trading style.