Summary
One call: which buckets can this account see?
That is the whole surface. It answers the orientation question at the start of an S3 task and nothing past it — no objects, no reads of content, no writes.
What it is
A single read call over AWS S3: the buckets your configured credentials can reach, optionally scoped to one region.
What you get
- Every S3 bucket your AWS credentials can reach, as a formatted list
- The same list narrowed to a region you name
Requirements
Python 3.13 or newer and uv, plus AWS credentials already configured — an aws configure profile, environment variables, or an IAM role if you are running on AWS.