Mastering Your AI Costs: An In-Depth Look at TokenWatch

TokenWatch is an open-source, privacy-first tool that tracks and analyzes token usage across multiple AI providers like OpenAI and Anthropic. It offers granular usage tracking, proactive budget alerts, model cost comparison, and optimization suggestions—all running locally with no telemetry. The tool addresses the common 'bill surprise' problem by giving developers full visibility and control over their AI spending.