How do I install Shieldly Io?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Shieldly Io need an API key?

The publisher lists these environment variables: SHIELDLY_API_KEY.

What transport does Shieldly Io use?

Shieldly Io runs locally over stdio.

When was Shieldly Io last checked?

Last checked 2026-11-10. AI-Powered AWS security analysis: scan IAM policies and CloudFormation for risks and escalation.

Shieldly Io MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

npx -y @shieldly/[email protected]

Credentials from the publisher

SHIELDLY_API_KEY — Shieldly API key (optional — without it the server runs in rate-limited demo mode, no signup needed)

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1SHIELDLY_API_KEY=<secret> claude mcp add io.github.shieldly-io-mcp -- npx -y @shieldly/mcp@1.0.1

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.shieldly-io-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "@shieldly/[email protected]"8      ],9      "env": {10        "SHIELDLY_API_KEY": "<secret>"11      }12    }13  }14}

claude_desktop_config.json

Local · npmPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 1.0.1
API key

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

@shieldly/mcp

AI-Powered Security Analysis for AWS — official MCP server.

Gives any MCP-compatible AI assistant (Claude Code, Claude Desktop, Cursor, etc.) two tools to analyze AWS IAM policies and CloudFormation templates for security risks — privilege escalation paths, wildcards, and other over-permissive access. Powered by Shieldly.

Setup

Add to your MCP client config (e.g. Claude Desktop's claude_desktop_config.json, or Claude Code's .mcp.json):

{
  "mcpServers": {
    "shieldly": {
      "command": "npx",
      "args": ["-y", "@shieldly/mcp"]
    }
  }
}

Try it free — no account needed

Both tools run in demo mode without an API key (rate-limited, no signup). For higher limits, set SHIELDLY_API_KEY:

{
  "mcpServers": {
    "shieldly": {
      "command": "npx",
      "args": ["-y", "@shieldly/mcp"],
      "env": { "SHIELDLY_API_KEY": "sk_live_..." }
    }
  }
}

Get an API key (Builder plan or above): https://www.shieldly.io/app/api

Tools

`analyze_iam_policy`

Analyzes an IAM identity policy, or a cross-account trust+identity pair.

Argument	Type	Description
`policy`	string	The IAM policy JSON as a string.
`policyType`	`identity` \| `cross_account`	Defaults to `identity`.

`analyze_cloudformation_template`

Analyzes a CloudFormation template — extracts IAM roles/policies and flags over-permissive access.

Argument	Type	Description
`template`	string	The CloudFormation template JSON as a string.

Also available as

License

MIT

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Shieldly Io?

Does Shieldly Io need an API key?

What transport does Shieldly Io use?

When was Shieldly Io last checked?

Documentation

@shieldly/mcp

Setup

Try it free — no account needed

Tools

analyze_iam_policy

analyze_cloudformation_template

Also available as

License

`analyze_iam_policy`

`analyze_cloudformation_template`