ModelMeter is a VS Code extension for monitoring AI provider balances and estimating local AI model usage costs across DeepSeek, SiliconFlow, Moonshot/Kimi, OpenAI, Anthropic/Claude, and Zhipu GLM.

Version 1.1.0 is a product-hardening release: it moves the extension to a modular architecture, removes external webview scripts, applies stricter webview rendering, enables custom pricing, and adds manual usage, CSV export, and history clearing workflows.

✨ Features

Multi-provider accounts: add, switch, edit, delete, and test API accounts.
Balance monitoring: supported for providers that expose balance APIs.
Local usage estimation: manually record token usage and estimate cost using built-in or custom pricing.
Charts without CDN dependency: local chart renderer inside the extension package.
CSV export: export the active account's local 30-day usage history.
Privacy-first storage: API keys use VS Code SecretStorage; local history stays in VS Code globalState.
Proxy support: respects VS Code http.proxy settings.
Runtime settings: status bar visibility, refresh interval, and custom pricing are applied at runtime.

🛠️ Installation

From a packaged .vsix:

code --install-extension modelmeter-1.1.0.vsix

From source:

npm install
npm run compile

Launch the extension with VS Code's Extension Development Host.

🎛️ Commands

ModelMeter: Add / Configure API Account
ModelMeter: Manage API Accounts
ModelMeter: Refresh Usage Data
ModelMeter: Test API Connection
ModelMeter: Add Manual Usage Record
ModelMeter: Export Usage CSV
ModelMeter: Clear Usage History

⚙️ Settings

{
  "modelmeter.refreshInterval": 60,
  "modelmeter.showStatusBar": true,
  "modelmeter.customPricing": {
    "openai:gpt-4o": {
      "input": 2.5,
      "output": 10,
      "cachedInput": 1.25
    }
  }
}

Pricing values are USD per 1M tokens.

🔒 Privacy and Security

API keys are stored through VS Code SecretStorage.
ModelMeter does not collect telemetry.
Local usage history is not uploaded.
Webview scripts are local to the extension package.
Provider requests are only sent when testing a connection or querying balance.

See SECURITY.md and PRIVACY.md.

📚 Documentation

📄 License

MIT. See LICENSE.