AI Plugin Index
s3
Verified · pulsemcp.comMCP server by pulsemcp · updated · ★ 81 · 19 downloads a week
MCP server for AWS S3 with fine-grained tool control and S3-compatible endpoint support. s3 is published by pulsemcp.com from its verified domain in the official MCP Registry.
Last commit 12 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 81 stars, original repository
No risky patterns in the files we checked
What you need
| Setting | Needed | What it is |
|---|---|---|
AWS_ACCESS_KEY_IDEnvironment variable, secret | Required | AWS access key ID for authentication. |
AWS_SECRET_ACCESS_KEYEnvironment variable, secret | Required | AWS secret access key for authentication. |
AWS_REGIONEnvironment variable | Optional | AWS region for S3 operations. Default: us-east-1 |
AWS_ENDPOINT_URLEnvironment variable | Optional | Custom S3 endpoint URL for MinIO or S3-compatible services. |
S3_FORCE_PATH_STYLEEnvironment variable | Optional | Use path-style addressing instead of virtual-hosted-style. Default: false |
S3_BUCKETEnvironment variable | Optional | Constrain all operations to a single bucket. |
S3_ENABLED_TOOLGROUPSEnvironment variable | Optional | Comma-separated tool groups: readonly or readwrite. |
S3_ENABLED_TOOLSEnvironment variable | Optional | Whitelist specific tools by name. |
S3_DISABLED_TOOLSEnvironment variable | Optional | Blacklist specific tools by name. |
SKIP_HEALTH_CHECKSEnvironment variable | Optional | Skip AWS credential validation health checks at startup. Default: false |
From the publisher's entry in the official MCP Registry. Required settings are already in the install config below as placeholders.
Install s3
Built from the published package, never by AIclaude mcp add s3 -e AWS_ACCESS_KEY_ID=YOUR_AWS_ACCESS_KEY_ID -e AWS_SECRET_ACCESS_KEY=YOUR_AWS_SECRET_ACCESS_KEY -- npx -y s3-aws-mcp-serverRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "YOUR_AWS_ACCESS_KEY_ID",
"AWS_SECRET_ACCESS_KEY": "YOUR_AWS_SECRET_ACCESS_KEY"
}
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "YOUR_AWS_ACCESS_KEY_ID",
"AWS_SECRET_ACCESS_KEY": "YOUR_AWS_SECRET_ACCESS_KEY"
}
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "YOUR_AWS_ACCESS_KEY_ID",
"AWS_SECRET_ACCESS_KEY": "YOUR_AWS_SECRET_ACCESS_KEY"
}
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add s3 --env AWS_ACCESS_KEY_ID=YOUR_AWS_ACCESS_KEY_ID --env AWS_SECRET_ACCESS_KEY=YOUR_AWS_SECRET_ACCESS_KEY -- npx -y s3-aws-mcp-server{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "YOUR_AWS_ACCESS_KEY_ID",
"AWS_SECRET_ACCESS_KEY": "YOUR_AWS_SECRET_ACCESS_KEY"
}
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add s3 npx -y s3-aws-mcp-serverGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the s3 block.
Security check
ANo download-and-run commands, hidden instructions or signs of sending keys out were found.
Checked automatically: README.md, package.json. This looks for known risky patterns and is not a full audit. How grades work
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s3: common questions
How do I install s3?
In Claude Code run claude mcp add s3 -e AWS_ACCESS_KEY_ID=YOUR_AWS_ACCESS_KEY_ID -e AWS_SECRET_ACCESS_KEY=YOUR_AWS_SECRET_ACCESS_KEY -- npx -y s3-aws-mcp-server. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is s3 the official server?
s3 is published by pulsemcp.com from its verified domain in the official MCP Registry.
Is s3 free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is s3 safe to use?
It scores 83 of 100. Grades: maintenance A, licence A, quality B. Security check: grade A, no risky patterns found in the files checked. Review the code before you install. How grades work.
What are alternatives to s3?
Similar MCP servers: Azure MCP Server, Omnara, mcp, Superlog.
Does s3 work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.