Model Context Protocol server for AWS S3 operations
Connect Aws S3 MCP to Claude, Cursor or any other MCP client and it stops being a tab you switch to. Model Context Protocol server for AWS S3 operations. The aws s3 mcp mcp server is what makes that connection.
A Model Context Protocol (MCP) server that gives AI assistants (Claude, Cursor, etc.) direct access to AWS S3 — enabling them to list, upload, download, and manage S3 buckets and objects through natural language.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
list_buckets — List all S3 buckets in the accountcreate_bucket — Create a new S3 bucketdelete_bucket — Delete an empty S3 bucketlist_objects — List objects in a bucket (with optional prefix filter)upload_object — Upload a file or string content to a bucketdownload_object — Download an object from a bucketdelete_object — Delete an object from a bucketget_bucket_policy — Get the policy attached to a bucketset_bucket_policy — Set or update a bucket policySetup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Configuration is passed through the environment: AWS_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
This sits in the cloud and infrastructure group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Aws S3 MCP's toolset — list_buckets, create_bucket, delete_bucket and 6 more — is a fair guide to whether it matches your workflow. It is maintained by gangadharrr; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Aws S3 MCP's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| list_buckets | List all S3 buckets in the account |
| create_bucket | Create a new S3 bucket |
| delete_bucket | Delete an empty S3 bucket |
| list_objects | List objects in a bucket (with optional prefix filter) |
| upload_object | Upload a file or string content to a bucket |
| download_object | Download an object from a bucket |
| delete_object | Delete an object from a bucket |
| get_bucket_policy | Get the policy attached to a bucket |
| set_bucket_policy | Set or update a bucket policy |
{
"mcpServers": {
"aws-s3": {
"command": "npx",
"args": ["@gangadharrr/aws-s3"],
"env": {
"AWS_REGION": "us-east-1",
"AWS_ACCESS_KEY_ID": "your-access-key-id",
"AWS_SECRET_ACCESS_KEY": "your-secret-access-key"
},
"autoApprove": ["list_buckets", "list_objects", "get_bucket_policy"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| AWS_REGION | Configuration value read at startup. | Optional |
| AWS_ACCESS_KEY_ID | Credential the server authenticates with. | Yes |
| AWS_SECRET_ACCESS_KEY | Credential the server authenticates with. | Yes |
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