FinOps

• Cloud Cost Handbook
• FinOps FOCUS - An open-source specification that normalizes cost and usage datasets across cloud vendors and reduces complexity for FinOps Practitioners.
• FinOps
• OpenCost - Open source cost monitoring for cloud native environments

AWS

• cur.vantage.sh - This tool helps you decode AWS Cost and Usage Report (CUR) billing codes for any AWS service. Search for specific services or billing codes to find detailed information about usage types, pricing dimensions, and billing components.