Token Watcher
See exactly what your Claude and ChatGPT conversations cost
What it does
Token Watcher is a lightweight Chrome extension that reveals the true cost of your Claude.ai and ChatGPT conversations in real-time. No API key needed, no external servers. Track input/output tokens, per-model breakdown, and MCP call health — everything stays on your device. Stop guessing. Start monitoring. Free for 7 days of history, Pro for 30 days.
Does the same job
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Claude Code usage tracking by LangWatch Jul 2026 · langwatch.ai · ▲353See what your Claude Code sessions actually cost
Token Monitor: AI Context TrackerMay 2026 · ▲5See how much Claude you have left before you hit the wall
Claude Cost & Token InspectorJun 2026 · chromewebstore.google.com · ▲3Track Claude costs, tokens, context & model switches
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