# Amazon S3 Access Grants adds cross‑account listing

> A new API parameter lets you list all S3 grants from multiple AWS accounts in one call, available now across all regions.

Oossa · 2026-11-10 · https://oossa.com/en/amazon-s3-access-grants-adds-cross-account-listing

Amazon S3 Access Grants now supports a ListCallerAccessGrants call that can pull grants from every AWS account that shares access with you. By setting the InstanceScope parameter to ALL, the single request returns grants from your own instance and any others shared through AWS Resource Access Manager. The same option works with GetDataAccess, automatically routing the request to the owning account and returning the needed credentials. The feature is live in every region where S3 Access Grants runs and carries no extra charge.

## The facts

- Available as of 2026-11-10
- Use InstanceScope=ALL to list grants across accounts

## Why it matters

It lets administrators see all shared S3 permissions in one view, simplifying multi‑account data governance.

## Sources & references

1. [Amazon S3 Access Grants now support listing grants across multiple AWS accounts](https://aws.amazon.com/about-aws/whats-new/2026/11/amazon-s3-access-grants-list-across-regions/) – AWS, 2026-11-10

Last updated: 2026-11-10