AWS S3 MCP Server

★ 2

from OpenWorkspace-o1

Manage AWS S3 operations, providing secure access to S3 buckets through pre-signed URLs.

🔥🔥🔥✓ VerifiedAccount requiredNeeds API keys

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AWS S3 MCP Server

MCP Server for AWS S3 operations, providing secure access to S3 buckets through pre-signed URLs.

Tools

list_objects

List objects in an S3 bucket
Input:
prefix (string, optional): Prefix filter for object keys
Returns: Array of objects with keys, sizes, and last modified dates

get_object

Generate a pre-signed URL for accessing an object
Inputs:
key (string, required): Object key to retrieve
expiry (number, optional): URL expiration time in seconds (default: 3600)
Returns: object_url containing the pre-signed URL

put_object

Generate a pre-signed URL for uploading an object
Inputs:
key (string, required): Object key to upload
expiry (number, optional): URL expiration time in seconds (default: 3600)
Returns: upload_url containing the pre-signed URL

delete_object

Delete an object from the bucket
Input:
key (string, required): Object key to delete
Returns: success boolean indicating deletion status

Build

Docker build:

Copy & paste — that's it

docker build -t mcp/aws-ow-s3-mcp-server .

Development

The server is built using:

Node.js
TypeScript
@modelcontextprotocol/sdk
@aws-sdk/client-s3
@aws-sdk/s3-request-presigner

License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.

Setup

Environment Variables

The server requires the following environment variables:

BUCKET_NAME: The name of your S3 bucket (required)
REGION: AWS region (default: "ap-southeast-1")

AWS credentials should be configured using standard AWS credential configuration methods (environment variables, IAM roles, or AWS credentials file).

Usage with Claude Desktop

Add the following to your claude_desktop_config.json:

Copy & paste — that's it

{
 "mcpServers": {
 "aws-ow-s3-mcp": {
 "command": "docker",
 "args": [
 "run",
 "-i",
 "--rm",
 "-e",
 "BUCKET_NAME",
 "-e",
 "REGION",
 "-e",
 "AWS_ACCESS_KEY_ID",
 "-e",
 "AWS_SECRET_ACCESS_KEY",
 "mcp/aws-ow-s3-mcp"
 ],
 "env": {
 "BUCKET_NAME": " ",
 "REGION": " ",
 "AWS_ACCESS_KEY_ID": " ",
 "AWS_SECRET_ACCESS_KEY": " "
 }
 }
 }
}

NPX Command

Copy & paste — that's it

{
 "mcpServers": {
 "aws-ow-s3-mcp": {
 "command": "npx",
 "args": [
 "-y",
 "@modelcontextprotocol/server-aws-ow-s3-mcp"
 ],
 "env": {
 "BUCKET_NAME": " ",
 "REGION": " ",
 "AWS_ACCESS_KEY_ID": " ",
 "AWS_SECRET_ACCESS_KEY": " "
 }
 }
 }
}