MCP Server

com.pulsemcp/s3 MCP Server

Name: com.pulsemcp/s3 MCP Server
Author: com.pulsemcp

com.pulsemcp/s3

Repository Registry

What is the com.pulsemcp/s3 MCP server?

MCP server for AWS S3 with fine-grained tool control and S3-compatible endpoint support.

How to install com.pulsemcp/s3

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

AWS_ACCESS_KEY_ID
required
secret
AWS access key ID for authentication.
AWS_SECRET_ACCESS_KEY
required
secret
AWS secret access key for authentication.
AWS_REGION
AWS region for S3 operations.
AWS_ENDPOINT_URL
Custom S3 endpoint URL for MinIO or S3-compatible services.
S3_FORCE_PATH_STYLE
Use path-style addressing instead of virtual-hosted-style.
S3_BUCKET
Constrain all operations to a single bucket.
S3_ENABLED_TOOLGROUPS
Comma-separated tool groups: readonly or readwrite.
S3_ENABLED_TOOLS
Whitelist specific tools by name.
S3_DISABLED_TOOLS
Blacklist specific tools by name.
SKIP_HEALTH_CHECKS
Skip AWS credential validation health checks at startup.

Claude Desktop

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

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "s3-aws-mcp-server",
        "-y"
      ],
      "env": {
        "AWS_ACCESS_KEY_ID": "<YOUR_AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<YOUR_AWS_SECRET_ACCESS_KEY>",
        "AWS_REGION": "<YOUR_AWS_REGION>",
        "AWS_ENDPOINT_URL": "<YOUR_AWS_ENDPOINT_URL>",
        "S3_FORCE_PATH_STYLE": "<YOUR_S3_FORCE_PATH_STYLE>",
        "S3_BUCKET": "<YOUR_S3_BUCKET>",
        "S3_ENABLED_TOOLGROUPS": "<YOUR_S3_ENABLED_TOOLGROUPS>",
        "S3_ENABLED_TOOLS": "<YOUR_S3_ENABLED_TOOLS>",
        "S3_DISABLED_TOOLS": "<YOUR_S3_DISABLED_TOOLS>",
        "SKIP_HEALTH_CHECKS": "<YOUR_SKIP_HEALTH_CHECKS>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "s3-aws-mcp-server",
        "-y"
      ],
      "env": {
        "AWS_ACCESS_KEY_ID": "<YOUR_AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<YOUR_AWS_SECRET_ACCESS_KEY>",
        "AWS_REGION": "<YOUR_AWS_REGION>",
        "AWS_ENDPOINT_URL": "<YOUR_AWS_ENDPOINT_URL>",
        "S3_FORCE_PATH_STYLE": "<YOUR_S3_FORCE_PATH_STYLE>",
        "S3_BUCKET": "<YOUR_S3_BUCKET>",
        "S3_ENABLED_TOOLGROUPS": "<YOUR_S3_ENABLED_TOOLGROUPS>",
        "S3_ENABLED_TOOLS": "<YOUR_S3_ENABLED_TOOLS>",
        "S3_DISABLED_TOOLS": "<YOUR_S3_DISABLED_TOOLS>",
        "SKIP_HEALTH_CHECKS": "<YOUR_SKIP_HEALTH_CHECKS>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "s3-aws-mcp-server",
        "-y"
      ],
      "env": {
        "AWS_ACCESS_KEY_ID": "<YOUR_AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<YOUR_AWS_SECRET_ACCESS_KEY>",
        "AWS_REGION": "<YOUR_AWS_REGION>",
        "AWS_ENDPOINT_URL": "<YOUR_AWS_ENDPOINT_URL>",
        "S3_FORCE_PATH_STYLE": "<YOUR_S3_FORCE_PATH_STYLE>",
        "S3_BUCKET": "<YOUR_S3_BUCKET>",
        "S3_ENABLED_TOOLGROUPS": "<YOUR_S3_ENABLED_TOOLGROUPS>",
        "S3_ENABLED_TOOLS": "<YOUR_S3_ENABLED_TOOLS>",
        "S3_DISABLED_TOOLS": "<YOUR_S3_DISABLED_TOOLS>",
        "SKIP_HEALTH_CHECKS": "<YOUR_SKIP_HEALTH_CHECKS>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "s3": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "s3-aws-mcp-server",
        "-y"
      ],
      "env": {
        "AWS_ACCESS_KEY_ID": "<YOUR_AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<YOUR_AWS_SECRET_ACCESS_KEY>",
        "AWS_REGION": "<YOUR_AWS_REGION>",
        "AWS_ENDPOINT_URL": "<YOUR_AWS_ENDPOINT_URL>",
        "S3_FORCE_PATH_STYLE": "<YOUR_S3_FORCE_PATH_STYLE>",
        "S3_BUCKET": "<YOUR_S3_BUCKET>",
        "S3_ENABLED_TOOLGROUPS": "<YOUR_S3_ENABLED_TOOLGROUPS>",
        "S3_ENABLED_TOOLS": "<YOUR_S3_ENABLED_TOOLS>",
        "S3_DISABLED_TOOLS": "<YOUR_S3_DISABLED_TOOLS>",
        "SKIP_HEALTH_CHECKS": "<YOUR_SKIP_HEALTH_CHECKS>"
      }
    }
  }
}

Claude Code

claude mcp add s3 --env AWS_ACCESS_KEY_ID=<YOUR_AWS_ACCESS_KEY_ID> --env AWS_SECRET_ACCESS_KEY=<YOUR_AWS_SECRET_ACCESS_KEY> --env AWS_REGION=<YOUR_AWS_REGION> --env AWS_ENDPOINT_URL=<YOUR_AWS_ENDPOINT_URL> --env S3_FORCE_PATH_STYLE=<YOUR_S3_FORCE_PATH_STYLE> --env S3_BUCKET=<YOUR_S3_BUCKET> --env S3_ENABLED_TOOLGROUPS=<YOUR_S3_ENABLED_TOOLGROUPS> --env S3_ENABLED_TOOLS=<YOUR_S3_ENABLED_TOOLS> --env S3_DISABLED_TOOLS=<YOUR_S3_DISABLED_TOOLS> --env SKIP_HEALTH_CHECKS=<YOUR_SKIP_HEALTH_CHECKS> -- npx -y s3-aws-mcp-server -y

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