I built a similar tool. but I used twitter and tracked the sentiment of topics including stock and crypto. It's an interesting angle, if you'd want to pursue it.
There is somewhat of correlation between online sentiment & crypto price movements, there are a couple papers on the topic. However, it is quite difficult to trade against. I work on wall street (tech side) so this was mostly just past time activity.
Yep, that's what i did. Every 15 min I would measure the sentiment of given topics, normalize the messy data and plot them. you can overlay this against a time series of price data.
Twitter also has a historic tweets api. It's more work, but you can backtest as well.
There is somewhat of correlation between online sentiment & crypto price movements, there are a couple papers on the topic. However, it is quite difficult to trade against. I work on wall street (tech side) so this was mostly just past time activity.