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@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"]
    }
  }
}

Related MCP server: Security-Use MCP Server

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

Install Server
A
license - permissive license
A
quality
C
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

Tools

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