LocalFree server, account needed

s3 MCP server

ofershap/mcp-server-s3

AWS S3 operations: list buckets, browse objects, upload and download files, and generate presigned URLs.

4 GitHub stars1 forks276 npm downloads / month
Source code

Install s3 in Claude Code

Claude Code
claude mcp add s3 -- npx -y mcp-server-s3
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-s3"
      ]
    }
  }
}

Frequently asked questions

What does the s3 MCP server do?

AWS S3 operations: list buckets, browse objects, upload and download files, and generate presigned URLs.

Is the s3 MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does s3 run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add s3 to Claude Code?

Run: claude mcp add s3 -- npx -y mcp-server-s3

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