MCP Servers

shieldly-mcp

Enables AI assistants to analyze AWS IAM policies and CloudFormation templates for security risks.

Category

README

@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

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