How do you manage cloud waste without giving live IAM access?

I built SpendLens because a lot of cloud cost tools solve visibility by asking for live access to your cloud account.

For many teams, that is the problem.

Security and compliance teams often do not want to approve third-party IAM roles, API keys, or read-only credentials just to understand a billing dashboard.

SpendLens takes a different approach: upload an AWS, Azure, or GCP billing CSV and get plain-English cost insights without connecting your live cloud infrastructure.

It looks for things like cost drivers, idle or underused resources, untagged spend, and potential savings opportunities, then turns the findings into simple explanations and PDF reports.

I am curious how other teams handle this today:

Do you use live-access FinOps tools, native cloud billing dashboards, spreadsheets, or internal scripts?

And if your company has strict cloud security rules, would a CSV-only / no-live-access workflow be useful?