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About

HOL Guard is a local-first runtime security layer for AI agents that watches what an AI assistant is about to do and stops risky actions before they happen. It sits between the agent and the computer, evaluating supported tool calls and local artifacts for threats such as secret and credential exposure, destructive commands, prompt-injection-driven actions, malicious or changed packages, risky MCP configuration, and unsafe plugins, skills, hooks, and settings. Known threats can be blocked automatically, while ambiguous actions are paused for user approval so people remain in control. Guard runs entirely on the developer’s machine, works offline, and does not upload files, prompts, or passwords. Local checks typically complete in under 50 milliseconds and require no changes to existing code or routines. It supports coding agents including Claude Code, Cursor, Codex, Gemini CLI, OpenCode, Hermes, and OpenClaw, with tailored integrations that inspect actions before execution.

About

Preloop is the open source AI agent control plane for agents that take real actions. It combines an MCP firewall for tool access, an AI model gateway for cost, safety, and attribution, policy-as-code with human approvals, runtime session observability, and audit trails in a single self-hostable platform. AI agents can deploy code, change infrastructure, move money, touch production data, and burn model spend in seconds, so Preloop helps teams control what agents can do, how much they spend, and which actions require human approval. It works with OpenClaw, Hermes, Claude Code, Codex CLI, Cursor, Gemini CLI, Windsurf, Cline, OpenCode, and any MCP-compatible agent or managed runtime. Access rules can inspect arguments and context, not just tool names, with CEL expressions for fine-grained conditions. Teams can start with observability, then layer in approvals and deny rules without SDKs or invasive app changes.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and engineering teams in need of a tool to prevent AI coding agents from exposing secrets, executing destructive commands, or performing other risky actions

Audience

Platform, DevEx, security, and operations teams that need to govern production AI agents, control tool access, approve risky actions, and maintain audit-ready visibility

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$4.99 per month
Free Version Supported
Free Trial Not Supported

Pricing

$290 per month
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

HOL
Founded: 2024
United States
hol.org/guard

Company Information

Preloop
United States
preloop.ai/

Alternatives

Alternatives

Tuning Engines

Tuning Engines

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nono

nono

Always Further
Spawn

Spawn

OpenRouter
BAND

BAND

BAND.ai

Categories

AI Security Supported

Categories

Agentic AI Supported
AI Control Planes Supported
AI Governance Supported

Integrations

Claude Code Supported
Cursor Supported
Gemini CLI Supported
Model Context Protocol (MCP) Supported
OpenClaw Supported
OpenCode Supported
Slack Supported
Amazon Bedrock Not Supported
Antigravity CLI Supported
Cline Not Supported
Codex CLI Not Supported
GitHub Supported
GitHub Copilot CLI Supported
Grok Supported
Hermes Not Supported
Kimi Supported
Mattermost Not Supported
OpenAI Codex Supported
Pi Agent Supported
Windsurf Browser Not Supported

Integrations

Claude Code Supported
Cursor Supported
Gemini CLI Supported
Model Context Protocol (MCP) Supported
OpenClaw Supported
OpenCode Supported
Slack Supported
Amazon Bedrock Supported
Antigravity CLI Not Supported
Cline Supported
Codex CLI Supported
GitHub Not Supported
GitHub Copilot CLI Not Supported
Grok Not Supported
Hermes Supported
Kimi Not Supported
Mattermost Supported
OpenAI Codex Not Supported
Pi Agent Not Supported
Windsurf Browser Supported
Claim HOL Guard and update features and information
Claim HOL Guard and update features and information
Claim Preloop and update features and information
Claim Preloop and update features and information