Save Money on AI: How to Track Token Usage with Spring Boot, Prometheus and Grafana

This 22-minute tutorial demonstrates how to build a complete AI monitoring dashboard to track token usage and costs when working with large language models. Learn to implement a monitoring solution using Spring Boot, Spring AI, Prometheus, and Grafana that provides real-time visibility into token consumption, response times, error rates, and projected costs. Follow along as Dan Vega explains the token usage problem, introduces key observability tools, walks through the system architecture, and guides you through setting up a project from scratch. Master essential configurations for proper metrics collection in both development and production environments, create a simple chat controller, test API calls, and customize Grafana dashboards to visualize your AI application's performance and costs effectively.