Open-Source Tool 'zombiescan' Finds and Prices Idle Google Cloud Resources

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A developer has released zombiescan, an open-source Python tool that scans Google Cloud projects for unused or idle resources that continue generating costs. The tool covers 20 resource types across services including Compute Engine, Cloud SQL, GKE, Cloud DNS, KMS, and Artifact Registry. It uses Application Default Credentials and requires only read access to target projects, making it straightforward to deploy without creating service accounts or downloading key files. Each finding is priced using the Cloud Billing Catalog API, giving teams a specific resource name, project, and monthly cost to act on. The project is available on GitHub at github.com/xbill9/zombiescan-gcp and can be installed or run directly from a local clone using the uv Python package manager.

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