AWS S3 MCP Server

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

Tools

1. `list_objects`

2. `get_object`

3. `put_object`

4. `delete_object`

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`:

{
  "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

{
  "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": ""
      }
    }
  }
}

Build

Docker build:

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.