agentguard

by GoPlusSecurity · Developer Tools · ★ 471

agentguard is an MCP server by GoPlusSecurity. Security guard for AI agents — blocks malicious skills, prevents data leaks, protects secrets. 24 detection rules, runtime action evaluation, trust registry. It has 471 GitHub stars and ranks #220 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: GoPlusSecurity
GitHub stars: 471
This week: Tracking since 18 Oct 2026
Weekly downloads: 1,504
Language: TypeScript
License: MIT (open source)
Last update: 2026-10-19 (5 days ago)
Links: Source npm

How to install agentguard

agentguard is published on npm as @goplus/agentguard, and it depends on @modelcontextprotocol/sdk. 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 Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add agentguard -- npx -y @goplus/agentguard

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

{
  "mcpServers": {
    "agentguard": {
      "command": "npx",
      "args": [
        "-y",
        "@goplus/agentguard"
      ]
    }
  }
}

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

Also listed in

MCP servers for security testing750

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Frequently asked questions

What is agentguard?

agentguard is an MCP server by GoPlusSecurity in the Developer Tools category. Security guard for AI agents — blocks malicious skills, prevents data leaks, protects secrets. 24 detection rules, runtime action evaluation, trust registry. It has 471 GitHub stars and ranks #220 of 2217 in Developer Tools by stars.

Is agentguard free and open source?

Yes. agentguard is published under the MIT 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.

What are the alternatives to agentguard?

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.