OpenTokenUsage: Desktop monitor for OpenAI API token activity
OpenTokenUsage, developed by PowerUserZ, is a Windows utility that gives developers a concise, real-time view of OpenAI API token consumption and remaining balances. The app connects to OpenAI endpoints to pull live usage and model-specific consumption estimates, offers historical usage visualization, and supports multiple API keys for project separation. It stores keys locally and targets software developers, AI researchers, and small teams who need a quick desktop overview of their API activity.
How the app retrieves live usage data
Mechanics: the app queries OpenAI API endpoints to collect usage records and model-linked consumption metadata, then aggregates those records into current and historical panels. An active internet connection is required for those queries, and the application runs on Windows systems that have the .NET Desktop Runtime installed. The design keeps requests limited to official endpoints rather than routing data through third-party servers.
How it behaves on a development machine
System impact: the tool is described as a lightweight background utility intended for active developer workflows. It runs as a small desktop process and is designed to present periodic usage updates without blocking other development tools. The project positions the app for continuous monitoring during active testing rather than heavy analytics jobs run on remote servers.
Is my API key handled securely?
Security posture: keys and configuration are stored locally on the host machine and the project is open-source, enabling inspection of how secrets are handled. The app does not forward keys to third-party services beyond the official OpenAI endpoints, and the codebase transparency on GitHub lets technically minded users verify read/write behavior themselves.
Who can operate the tool without hassles?
Usability: the interface is minimalist, intended for developers and researchers who already manage API keys and understand model selection. Setup is described as straightforward for users comfortable with desktop runtimes and key management, while those unfamiliar with API credentials may need to follow basic key-creation steps before the app provides value.
A practical choice for technically minded users who prefer local tooling
Given its open-source origin and positive reception among developers on GitHub, the app is a practical option for technical users who want desktop-based visibility into API usage. The trade-off is reliance on the developer's maintenance and updates to reflect new model tiers. Practical tip: keep the application updated from its repository to maintain compatibility with newer model metadata. Recommended.
Pros
Real-time token consumption fetched directly from OpenAI endpoints
Per-model consumption estimates and historical usage tracking
Local storage of API keys for on-device privacy
Open-source codebase available for inspection on GitHub
Cons
Requires .NET Desktop Runtime installed on the host system
Windows-only desktop app, not available for other platforms
Needs an active internet connection to fetch usage data
Value depends on ongoing maintenance for new model coverage
Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws. Softonic may receive a referral fee if you click or buy any of the products featured here.
