The tool is a proof of concept project that will show you how to use the United States IRS policy relating to cryptocurrency to your advantage in your crypto dealings, and has two main functions: First, to help you find the taxable income from your staking rewards, and second, to help you find the true basis and return (profit or loss) from any sale of those rewards.
The system uses the TzKT api and runs very fast! No personal or wallet data is stored within the website or the tool - it can only see what TzKT sees.