Wattage: A token-spend profiler and cost-regression gate for AI agents

Wattage is an open-source profiling tool that analyzes AI agent token usage and costs by examining OpenTelemetry traces, identifying inefficiencies like redundant API calls and caching issues, and pricing them in real dollars. The tool operates entirely offline without requiring configuration or API keys, and can automatically fail CI/CD pipelines when code changes increase operational costs. It includes a "convergence engine" that detects patterns like agents repeatedly looping without progress, offering both terminal reports and shareable HTML flame graphs for visualization.