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S3 MCP Server

Geun-Oh/s3-mcp-server

A Model Context Protocol (MCP) server for accessing Amazon S3 buckets. This server provides seamless integration with S3 storage through MCP, allowing efficient handling of large files including PDFs through streaming capabilities.

View on GitHub

Install

npx -y @geunoh/s3-mcp-server --region us-east-1 --bucket my-test-bucket --content-type text/plain

Client configuration

{
  "mcpServers": {
    "s3-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@geunoh/s3-mcp-server",
        "--region",
        "us-east-1",
        "--bucket",
        "my-test-bucket",
        "--content-type",
        "text/plain"
      ],
      "env": {
        "AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
      }
    }
  }
}

Environment variables

AWS_ACCESS_KEY_IDAWS_SECRET_ACCESS_KEYAWS_REGIONS3_BUCKET_NAMECONTENT_TYPE
Author
@Geun-Oh
Category
Cloud Storage, Developer Tools
License
MIT
Updated
Oct 6, 2026

Features

  • S3 bucket object listing with prefix filtering

  • Efficient large file handling through streaming

  • Secure AWS credentials management

  • TypeScript support

  • CLI interface with customizable options

Tools (2)

  • listObjects

    Lists objects in the S3 bucket.

  • getObject

    Retrieves an object from the S3 bucket.

Details on this page are taken from the project's README. Open README

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