infracost/infracost

What it solves

Infracost helps engineers and AI agents avoid unexpected cloud bills by providing cost estimates and FinOps best practices for infrastructure code before it is deployed. It bridges the gap between writing code and understanding the financial impact of that code across AWS, Azure, and Google Cloud.

How it works

Infracost analyzes Infrastructure-as-Code (IaC) files—specifically Terraform, Terragrunt, CloudFormation, and AWS CDK—and compares them against cloud pricing data. It provides these estimates through several integration points:

• CLI: A command-line tool for scanning projects and inspecting specific resource costs.
• AI Agent Skills: Specialized plugins for AI coding agents (like Claude Code and Cursor) that allow them to reason about costs and policies during code generation.
• IDE Extensions: Real-time cost lenses and hints within editors via a Language Server Protocol (LSP).
• CI/CD: Automated cost diffs and policy checks posted directly to pull requests.
• Infracost Cloud: A centralized SaaS dashboard for managing tagging policies and spending guardrails.

Who it’s for

It is designed for DevOps engineers, platform engineers, FinOps practitioners, and AI coding agents that generate infrastructure code.

Highlights

• Broad Support: Supports over 1,100 resources across AWS, Azure, and GCP, including usage-based resources like S3 and Lambda.
• AI-Native Integration: Provides specific skills for AI agents to handle IaC generation, cost scanning, and price lookups.
• Shift-Left Costing: Moves cost visibility into the development phase (IDE and PR) rather than after deployment.
• Unified Policy Engine: Policies defined in Infracost Cloud are enforced consistently across the CLI, IDE, and CI/CD pipelines.