hol-guard

by hashgraph-online · Developer Tools · ★ 975

hol-guard is an MCP server by hashgraph-online. Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime. It has 975 GitHub stars and ranks #142 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: hashgraph-online
GitHub stars: 975
This week: Tracking since 18 Oct 2026
Language: Python
License: Apache-2.0 (open source)
Last update: 2026-10-24 (today)
Links: Source Website

agent-security
ai-agent-security
ai-agents
ai-antivirus
ai-security
claude-code
cursor
devsecops
gemini-cli
mcp
mcp-security
openclaw
+8 more

How to install hol-guard

Install steps differ per project, so follow the README in the hol-guard repository. Most MCP servers start with a single command (npx -y <package>, uvx <package> or a Docker image) that you add to your client's config. The install guide shows where that goes in Claude Code, Claude Desktop, Cursor and VS Code.

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Frequently asked questions

What is hol-guard?

hol-guard is an MCP server by hashgraph-online in the Developer Tools category. Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime. It has 975 GitHub stars and ranks #142 of 2217 in Developer Tools by stars.

Is hol-guard free and open source?

Yes. hol-guard 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.

What are the alternatives to hol-guard?

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