AI & Agents · Production
Hatz Usage Watch
Tray app that tracks every Hatz AI client's monthly credit use and warns early.
Built for: The AME Group's Secure AI admins and account managers






The problem
The AME Group resells Hatz AI to many client tenants, each with a monthly credit limit. The only way to see who was close to running out was to check each tenant by hand, so overages were found after the fact.
What I built
I built a Windows tray app that polls the Hatz admin API for every tenant and colors its icon by how clients are tracking. It forecasts each client, opens a dashboard with drill-down, and emails a branded PDF report when a threshold is crossed.
How it works
- Poll the Hatz admin usage endpoint for every tenant.
- Forecast each client from pace, history and usual monthly shape.
- Update the tray icon color, tooltip and menu.
- Open the dashboard for per-client drill-down on demand.
- Email the client a report once per period when a threshold is crossed.
Built with
- C#
- .NET 8
- WPF
- WebView2
- Chart.js 4.4
- Serilog
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