TokenLens
Track AI API costs live, right inside VS Code
TokenLens launched on July 6, 2026 with 2 votes.
What it does
TokenLens is a VS Code extension that shows your OpenAI, Anthropic, Gemini and Mistral API costs in real time. It runs a local proxy on your machine. Point your SDK at it with one env var and every API call shows its cost in your status bar as it happens. No code changes needed. Nothing leaves your machine on the free plan. Free tier includes unlimited tracking and 7 day history. Pro is £19/mo for unlimited history, CSV export and cloud backup.
Extension for Visual Studio Code - Track OpenAI, Anthropic & Gemini API costs in real-time. See exactly what your AI is costing you — right inside VS Code. No code changes required.
I got a £340 Anthropic bill last month and had no idea it was coming. The usage dashboard is fine but you only check it after the damage is done. So I built TokenLens. It shows the cost of every API call in your VS Code status bar as it happens. TokenLens runs a local proxy on your machine. Point your SDK at it with one env var and every API call shows its cost in real time. No code changes needed. OPENAI_BASE_URL=http://localhost:4247/openai ANTHROPIC_BASE_URL=http://localhost:4247/anthropic Every call passes through the proxy. TokenLens reads the token counts, calculates the cost, and updates your status bar instantly — including streamed responses. All data stays on your machine. The…from marketplace.visualstudio.com
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TokenWatchMar 2026 · tokenwatch-ten.vercel.app · ▲3Hey HN! Built this after watching engineering teams repeatedly get surprised by AI API invoices — no visibility into spend until the bill landed. TokenWatch connects to your OpenAI, Anthropic, and Gemini keys and gives you: - Real-time spend dashboard across projects - Budget thresholds with proactive alerts - Anomaly detection for unusual cost spikes - Duplicate call detection (biggest source of wasted spend I've seen) Free tier supports up to 3 AI systems. Built this in ~2 days as a solo project. Happy to answer anything about the build or the problem space.
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