Shieldly Io MCP server
io.github.shieldly-io/mcp·v1.0.1AI-Powered AWS security analysis: scan IAM policies and CloudFormation for risks and escalation.
0 stars34 downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Shieldly Io tools (2)
write = sends, deletes, buys or postsRead from the package source without running it. The installed server may list more.
analyze_cloudformation_templateAI-Powered security analysis of a CloudFormation template \u2014 extracts IAM roles/policies and flags over-permissive access. Runs in demo mode (rate-limited, no signup) if SHIELDLY_API_KEY is not set.
analyze_iam_policyAI-Powered security analysis of an AWS IAM policy (identity policy or cross-account trust+identity pair). Flags privilege-escalation paths, wildcards, and other over-permissive access. Runs in demo mode (rate-limited, no signup) if SHIELDLY_API_KEY is not set.
Public scan report
scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it
- Code scan2 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitystatic API keys via environment variables6/15
- Maintenancelast push 70 days ago12/15
- Maintainer identityregistry namespace matches repository owner7/10
How Shieldly Io compares
Against every graded Developer tools MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 77/100
- higher than 45% of 1,119 Developer tools servers
- Tools
- 2
- the typical Developer tools server has 7
- Tools that change things
- 0%
- typical: 5%. Fewer write tools means less an agent can break
- Downloads a week
- 34
- more than 19% of 436 Developer tools servers with a package
What its tools let an agent do: 2 read
Install Shieldly Io in Claude Code, Cursor or VS Code
Runs npx -y @shieldly/mcp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add mcp -- npx -y @shieldly/mcp
What the publisher says
From the Shieldly Io repository's README, as published. We do not edit it. Read it on GitHub
@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 claudedesktopconfig.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 SHIELDLYAPIKEY:
{
"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
analyzeiampolicy
Analyzes an IAM identity policy, or a cross-account trust+identity pair.
analyzecloudformationtemplate
Analyzes a CloudFormation template — extracts IAM roles/policies and flags over-permissive access.
Also available as
- CLI
- VS Code extension
- GitHub Action
- CDK Guard
- Web app
License
MIT
Nothing above is checked by us. What we check is on the safety report.
Shieldly Io: common questions
- Is Shieldly Io MCP server safe?
- Mostly: it is graded B (77/100). Read the Shieldly Io safety report
- How do I install Shieldly Io?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does Shieldly Io need an API key?
- Yes. The registry entry asks for
SHIELDLY_API_KEY. - Is Shieldly Io maintained?
- The last commit was 109 days ago (2026-07-18). The latest release is v1.0.1.
- What can I use instead of Shieldly Io?
- Servers from other publishers that do the same job: cloud-audit MCP server, Grasp — Code Architecture & Dependency Analysis MCP server and Emfirge MCP server.
- How does Shieldly Io compare with other Developer tools MCP servers?
- safety score 77/100 (higher than 45% of 1,119 Developer tools servers); tools 2 (the typical Developer tools server has 7); tools that change things 0% (typical: 5%. Fewer write tools means less an agent can break). Full comparison.
Alternatives to Shieldly Io
Same job from other publishers: the closest match first, then the best rated.
- cloud-auditAWS security scanner with attack chain detection, IAM privilege escalation, and fixesnot reviewedEstablishedA
- Grasp — Code Architecture & Dependency AnalysisCodebase analysis: dependency graphs, security scanning, and refactor plans for GitHub and GitLab.not reviewedGrowingC
- EmfirgeGit branch for your cloud. Understand AWS risk, prove fixes, and ship safer changes.not reviewedGrowingA
- TerraVisionDraw cloud architecture diagrams with official AWS, Azure and GCP icons from a prompt or Terraform.not reviewedEstablishedA
- ObservatoryMCP security scanner. CI-native testing, attack simulation, health scoring, and SARIF.not reviewedEstablishedB