hol-guard
★ 969
vs
mcptrustchecker
★ 172
hol-guard vs mcptrustchecker
hol-guard: HOL Guard acts as an antivirus for AI harnesses, intercepting tool actions to protect against file changes and network contact. It also includes `plugin-scanner`, a complementary tool for linting and verifying AI plugins and packages in CI environments before release, ensuring quality and security.; mcptrustchecker: MCP Trust Checker is a local-first, deterministic security scanner that evaluates the safety of Model Context Protocol (MCP) servers. It utilizes a unique Capability-Flow Trust Model to statically identify potential data exfiltration paths and other vulnerabilities before you connect servers to sensitive data.
01
TL;DR
hol-guardSecurity & Safety · ★ 969
When to choose:
- You run Codex, Claude Code, Copilot CLI, Cursor or similar and want a check before new or changed tools run.
- You maintain plugins, skills or MCP servers and want a CI step such as `plugin-scanner verify .`.
- You want local receipts of what was approved or blocked.
When to skip:
- You need a clear licence in GitHub's metadata today; our data shows none detected.
- You want a minimal tool: the README covers a large surface of commands and integrations.
- You cannot accept extra approval prompts in your agent workflow.
mcptrustcheckerSecurity & Safety · ★ 172
Scanning already installed MCP servers or local package directories for vulnerabilities.
02
Side-by-Side Comparison
Field
hol-guardmcptrustcheckerCategory
Security & Safety
Security & Safety
Stars
★ 969
★ 172
License
NOASSERTION
MIT
Install Command
pipx install hol-guard
npm i -g mcptrustchecker
Updated
1d ago
2mo ago
Open Source
Yes
Yes
Tags
AI Security, Plugin Scanner, LLM Guardrail
Security Scanner, Static Analysis, Trust Model
03
Features
hol-guard01Intercepts tool actions and provides an approval center for blocked changes before execution.
02Offers configurable protection levels ranging from Gentle to Paranoid security.
03Scans and verifies AI plugins and packages for security vulnerabilities and quality in CI/CD pipelines.
04Leverages an optional advisory database for comprehensive threat detection and supply chain scanning.
mcptrustchecker01Offline by Default: Operates without requiring an account, token, API key, or hosted service, ensuring data privacy.
02Cross-Tool Toxic-Flow Graph: Identifies lethal trifecta scenarios where untrusted input, sensitive data, and external exfiltration paths coexist across multiple tools.
03Deep-Scans Published Packages: Fetches, verifies, and analyzes the actual published source code from npm/PyPI without installation or execution.
04Auditable Trust Score: Provides a deterministic A-F grade with a transparent scoring methodology, including penalty vectors and confidence levels.
05Rug-Pull Integrity: Detects post-approval mutations of tool definitions and verifies package artifact hashes to prevent silent changes.
04
Use Cases
hol-guard↳Real-time protection for AI coding assistants and LLM-powered developer tools on local machines.
↳Establishing a CI/CD quality and security gate for AI plugins and marketplace packages before release.
↳Detecting and mitigating AI supply-chain risks, hardcoded secrets, and prompt injections in AI components.
↳Implementing strict security policies for high-security AI development environments and auditing decisions.
mcptrustchecker↳Scanning already installed MCP servers or local package directories for vulnerabilities.
↳Auditing live HTTP/SSE or OAuth-protected remote MCP endpoints before integration.
↳Integrating into CI/CD pipelines (e.g., GitHub Actions) to enforce security gates and generate SARIF reports.
↳Embedding the scanning engine into marketplaces or platforms to verify the security of listed MCP servers.
↳Using the free hosted web API for quick, zero-install security checks of tool manifests or published packages.
05
Best For
hol-guardTrendingHidden Gem
mcptrustchecker—
FAQ
FAQ
What is the difference between hol-guard and mcptrustchecker?
Both hol-guard and mcptrustchecker are in the Security & Safety category. hol-guard has 969 stars, while mcptrustchecker has 172 stars.
Which is better, hol-guard or mcptrustchecker?
The best choice depends on your use case. Choose hol-guard if Real-time protection for AI coding assistants and LLM-powered developer tools on local machines., and mcptrustchecker if Scanning already installed MCP servers or local package directories for vulnerabilities..
Is hol-guard free or open source?
Yes, hol-guard is open source on GitHub (NOASSERTION).
Is mcptrustchecker free or open source?
Yes, mcptrustchecker is open source on GitHub (MIT).
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