Question: Can you recommend a tool that helps track and optimize API costs in real-time?

If you're looking for a service to monitor and optimize API costs in real-time, Supergood is worth a look. This API spend tracking and optimization system offers real-time visibility into API usage so you can see the cost of every API request. It has features like spend optimization, cost controls and data quality monitoring, and is easy to deploy and secure with SOC2 Type II compliance. It offers a range of pricing plans to match different needs, including a free plan for up to 100k API calls per month.

Another option is OpenMeter, an open-source usage-based billing and cloud cost management system. It can integrate with multiple sources of usage data and offers real-time customer dashboards, balance management and low-latency limit enforcement. OpenMeter supports many programming languages and cloud infrastructure components, so it's highly scalable and flexible. Its transparent pricing model includes free and pro plans, so it's available for different budgets and needs.

If you're focused on AWS costs, nOps offers an automated FinOps platform that can help you cut AWS costs by up to 50%. It includes features like Compute Copilot for EKS and ASG cost optimization and Commitment Manager for optimizing savings plans. With AI to learn user usage patterns, nOps offers detailed cost and usage dashboards, automated cost optimization recommendations and cost allocation features, so it's a powerful option for managing AWS costs.