mcp-armor

by aira-security · Developer Tools · ★ 124

mcp-armor is an MCP server by aira-security. MCP Armor continuously secures and monitors Model Context Protocol operations through static and dynamic scans, revealing hidden risks in agent-to-tool communications. It has 124 GitHub stars and ranks #497 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: aira-security
GitHub stars: 124
This week: Tracking since 18 Oct 2026
Language: Python
License: Apache-2.0 (open source)
Last update: 2026-03-27 (7 months ago)
Links: Source Website PyPI

agentic-ai
ai
ai-agents
aira
mcp
model-context-protocol
security

How to install mcp-armor

mcp-armor is published on PyPI as mcp-armor, and it depends on fastmcp. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need uv for uvx.

Add it to Claude Code from a terminal:

claude mcp add mcp-armor -- uvx mcp-armor

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "mcp-armor": {
      "command": "uvx",
      "args": [
        "mcp-armor"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm mcp-armor and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

MCP servers for security testing750

Maintain this project? Get it featured ($99/mo, pinned at the top of Developer Tools) or see what featuring includes.

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Frequently asked questions

What is mcp-armor?

mcp-armor is an MCP server by aira-security in the Developer Tools category. MCP Armor continuously secures and monitors Model Context Protocol operations through static and dynamic scans, revealing hidden risks in agent-to-tool communications. It has 124 GitHub stars and ranks #497 of 2217 in Developer Tools by stars.

Is mcp-armor free and open source?

Yes. mcp-armor is published under the Apache-2.0 license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

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