I just explored some coin trading tools that support AI and are completely free or offer basic plans at no cost. Maybe you're also looking for something similar.

If you want automated technical analysis, TradingView is the most basic choice. It’s not purely AI, but it has smart indicator systems that allow you to write custom scripts to automate strategies. You can also backtest before live trading. The free version is sufficient, and the pro version adds advanced tools. TrendSpider is in a similar category; it automatically recognizes price patterns, trendlines, Fibonacci levels, and provides signal alerts. The free version has feature limitations but is still usable.

If you're interested in on-chain analysis combined with AI, Tuner AI is a pretty good coin trading tool. It analyzes on-chain data, market sentiment, and suggests entry points based on the data. The basic version is completely free.

For automated bots, CryptoHopper and 3Commas are two popular options. CryptoHopper supports connection to major exchanges and optimizes strategies with AI. 3Commas specializes in DCA and Grid Trading, with AI features to manage risk. Both offer free plans but limit the number of trades or bots.

Your choice depends on your needs. Do you want an automated bot, technical analysis, or signal support tools?