HOL Guard MCP Server

Install HOL Guard Read the documentation PyPI Package (hol-guard) Report an Issue |. It runs locally over stdio via the published package.

People who work with codex, security and devsecops and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-18 · ★ 625 · #2 OF 204 MAINTAINED SECURITY · VERIFIED 2026-09-18

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install HOL Guard

Claude Code

claude mcp add hashgraph-online-hol-guard -- uvx hol-guard

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "hashgraph-online-hol-guard": {
      "command": "uvx",
      "args": [
        "hol-guard"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

pypi package hol-guard - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.hashgraph-online is GitHub-verified and matches the repo owner

03 · What HOL Guard can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v3.0.189 · 2026-09-17

Guard 3.0.189 is a stable release cut from 05fa476. · 1 commit • 1 merged pull request • 1 contributor since Guard 3.0.188. · Fixes · Queue native secret-read floors for approval (#2969) · - Queue native PreTool…

v3.0.187 · 2026-09-17

Guard 3.0.187 is a stable release cut from 633465c. · 1 commit • 1 merged pull request • 1 contributor since Guard 3.0.186. · Fixes · Keep login shells and native retries on the review floor (#2953) · - Keep…

v3.0.186 · 2026-09-17

Guard 3.0.186 is a stable release cut from 55eee3e. · 1 commit • 1 merged pull request • 1 contributor since Guard 3.0.185. · Fixes · Keep Linux Desktop navigation and signed sessions honest (#2952) · - Same-document…

04 · Who maintains HOL Guard

HOL Guard is maintained by hashgraph-online. We track 2 MCP servers from hashgraph-online - 2 actively maintained, 638 combined GitHub stars, oldest repo from Nov 2025. Full record: all servers from hashgraph-online.

hashnet Universal AI Agent Discovery - search 59,000+ agents across MCP, NANDA, A2A, OpenRouter ★ 13

05 · Facts

repository: github.com/hashgraph-online/hol-guard
website: https://hol.org/guard
category: security - ranked #2 of 204 actively-maintained security servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-17)
registry: io.github.hashgraph-online/hol-guard (active, first published 2026-08-16 · 302 versions)
packages: pypi:hol-guard

06 · HOL Guard FAQ

What is HOL Guard?

Install HOL Guard Read the documentation PyPI Package (hol-guard) Report an Issue |. It runs locally over stdio via the published package.

Is HOL Guard still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-18 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install HOL Guard?

Run `uvx hol-guard`. You can also paste the ready-made client config above.

Does HOL Guard run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to HOL Guard

Alternatives to HOL Guard

Maintained security servers if HOL Guard isn't the fit.

Pairs well with

Servers that cover what HOL Guard doesn't - only shown when the pairing reason fits the companion.

head to head · HOL Guard vs Snyk MCP Server · CrowdStrike Falcon MCP Server vs HOL Guard · Auth0 MCP Server vs HOL Guard

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