I built a macOS menu bar app to track AI token usage across 20+ providers

If you're like most developers right now, you're probably juggling 3-5 paid AI services. Claude for deep reasoning. GPT for quick lookups. Cursor or Copilot for inline code gen. Maybe Whisper for transcriptions. Each one has its own rate limits, billing cycles, and usage caps. And most of us have exactly zero visibility into how much we're actually consuming across all of them. The problem I kept running into I kept hitting rate limits at the worst times. Mid-flow, deep in a refactor, and suddenly Claude tells me I'm done for the next few hours.