hol-guard MCP Server
hashgraph-online/hol-guard
[](https://agentrank-ai.com/tool/hashgraph-online--hol-guard/?utm_source=badge&utm_medium=readme&utm_campaign=agentrank_badge) Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime.
claude mcp add agentrank -- npx -y agentrank-mcp-server Overview
hashgraph-online/hol-guard is a Python MCP server licensed under Apache-2.0. Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime. Topics: codex, mcp, security, agent-security, ai-agent-security, ai-agents, ai-security, claude-code, cursor, devsecops, gemini-cli, mcp-security, openclaw, opencode, prompt-injection, runtime-security, secrets-detection, supply-chain-security, ai-antivirus, dsh-plugin.
Ranked #6074 out of 24846 indexed tools.
Has 19 contributors.
Ecosystem
Score Breakdown
868 stars → growing community
Last commit 29d ago → recently updated
37/151 issues closed → many open issues
19 contributors → active community
1 dependent → few downstream users
Weights: Freshness 20% · Issue Health 20% · Dependents 22% · Stars 10% · Contributors 8% · How we score →
How to Improve
Matched Queries
From the README
# HOL Guard: Open-Source Antivirus for AI Agents | | **Stop risky AI actions before they compromise your machine.** HOL Guard is a local-first security layer for AI agents, tools, plugins, skills, MCP servers, and package installs.<br><br>[Install HOL Guard](https://hol.org/guard/activate)<br>[Read the documentation](https://github.com/hashgraph-online/hol-guard/blob/main/docs/guard/get-started.md)<br>[PyPI Package (`hol-guard`)](https://pypi.org/project/hol-guard/)<br>[Report an Issue](https://github.com/hashgraph-online/hol-guard/issues) | | :--- | :--- | HOL Guard reviews agent actions before they run: shell commands, file access, package installs, and MCP tool calls. It detects secret exposure, destructive operations, prompt injection, and supply-chain risks, then allows, blocks, or requests approval according to your policy. Run it locally without an account. Use the CLI and local dashboard to manage protection, resolve approvals, and inspect decision history. Optional [GuardRead full README on GitHub →
Get the weekly AgentRank digest
Top movers, new tools, ecosystem insights — straight to your inbox.