S3 MCP Server

by ofershap Your server? Claim it

local only

S3 runs on your own machine — the client starts it, so there is no endpoint to ping. 102 installs a week from npm. Last commit 10 Aug 2026.

AWS S3 MCP — list buckets, browse objects, upload/download, presigned URLs.

Installs per day peak 31 · avg 11 · +5% w/w

a month agotoday

102

Installs / week

npm · mcp-server-s3

Stars

2 open issues

10 Aug 2026

Last commit

no releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check S3 every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-s3"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.s3]
command = "npx"
args = ["-y", "mcp-server-s3"]

.cursor/mcp.json

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-s3"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "s3": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-s3"
      ]
    }
  }
}

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S3 — questions

Answers built from our own checks of this server.

Why is there no uptime for S3?

S3 runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package mcp-server-s3 was installed 102 times last week.

How do I connect S3?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls mcp-server-s3 straight from npm; nothing to host, nothing to sign up for.

How many people use S3?

The npm package mcp-server-s3 was installed 102 times in the last week. Week over week that is +5%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is S3 open source?

Yes — it is published under the MIT licence, written in TypeScript, 4 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.