Metrician — AI usage & limit tracker

A fuel gauge for your AI — usage, resets, alerts and pacing for ChatGPT, Claude, Grok, OpenCode Go and Ollama. Private, local-first.

A fuel gauge for your AI. ⛽ Metrician keeps your AI subscription limits visible while you work — ChatGPT, Claude, Grok, OpenCode Go, and Ollama in one local-first Chrome extension. More providers on the way. At a glance: ⛽ Used and remaining allowance for every plan ⏱️ Reset countdowns — know exactly when you get more 📈 Pace — ahead, behind, or on track for the current window 🔔 Alerts when a reset is near or usage is running hot ON THE PAGE, OR IN THE POPUP The popup shows the full picture in one click. Want limits in view all the time? Turn on the floating widget — movable, resizable, horizontal or vertical, and dressed in any of 26 skins, from Instrument Cluster to E-Ink Ledger, in light or dark. PRIVATE BY DEFAULT 🔒 No account required. No telemetry. No ads. Provider access is optional and requested only when you connect each service — your allowance data and preferences stay in your browser.