Bring your own API
Your endpoint, on a card.
Point this widget at any JSON endpoint, pick the numbers out of the response, and get bars, rings or a list. Each card keeps its own URL, heading and layout, and you can add as many as you like.
Make it yours
This widget is already on the board above. Use Add widget to put more beside it, drag the cards to swap them, and the whole set saves to this browser — no account, no database, nothing to log in to. Add a second card and this page quietly becomes your dashboard, board and all.
Every widget here is free and needs no API key. Where a widget cannot work where you are, it says so rather than showing a guess.