I got tired of low capabilities of coinmarketcap and the slow performance of coingecko so I started building a crypto portfolio and investment tool and would like advice and suggestions on how to continue building it.
This is what I have so far. You can enter an ethereum address in the search bar and all the coins and their ethplorer data is available to view. I am thinking of charting historical data for each coin and the total wallet data calculated through transactions. I need suggestions on how to make it better and what APIs would be best to develop it.
Here is the link -