# List S3 buckets

Canonical URL: https://docs.fuse.init.inc/integrations/aws/actions/s3.buckets.list

List general-purpose S3 buckets with pagination. Returns bucket Region when AWS supplies it. Requires s3:ListAllMyBuckets.

Action ID: `s3.buckets.list`
Provider: AWS (`aws`)
Contract version: 1

## Risk and exposure

- Risk: Read
- Idempotency: Safe — Safe to retry without coordination; repeats do not create additional side effects.
- Availability: Default
- Exposure: REST, SDK, MCP
- MCP hints: readOnly=true, destructive=false, idempotent=true, openWorld=true

## Required scopes

- `s3:ListAllMyBuckets`

## Input schema fields

- `page_size`
- `cursor`
- `prefix`

## Output schema fields

- `buckets`
- `buckets[]`
- `buckets[].name`
- `buckets[].created_at`
- `buckets[].region`
- `next_cursor`

Provider overview: https://docs.fuse.init.inc/integrations/aws
Actions index: https://docs.fuse.init.inc/integrations/aws/actions
Exact canonical JSON contract: https://docs.fuse.init.inc/api/catalog/v1/providers/aws/actions/s3.buckets.list
Deployment-effective discovery: https://api.fuse.init.inc/v1/tenants/%7Btenant_id%7D/providers/aws/actions