This pulls wallet portfolio data from Nansen's API to show you how holdings have changed over time. You get historical balances going back 30 days, a current snapshot of what's in the wallet right now, and per-token PnL with realized gains, ROI, and buy/sell counts. Useful when you're tracking how a whale or protocol treasury has been rotating positions, or when you want to see actual performance numbers instead of just current balances. The PnL breakdown showing buys, sells, and remaining holdings is genuinely helpful for understanding trading behavior. Requires a Nansen API key and works across Ethereum and other chains they support.
npx skills add https://github.com/nansen-ai/nansen-cli --skill nansen-portfolio-tracker