Guardian MCP Server

A safety layer between your AI assistant and the tools it uses. Version 4.1.8 · Website · npm · Install & troubleshooting · Changelog. It runs locally over stdio via the published package.

People connecting DevOps & monitoring tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-06-07 · ★ 3 · #41 OF 101 MAINTAINED DEVOPS & MONITORING · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Guardian

before you install - you'll need

Set DASHBOARD_ENABLED, DASHBOARD_AUTH_DISABLED, GUARDIAN_CI_BYPASS_LICENSE, DASHBOARD_PORT before connecting. MCP_GUARDIAN_DB_PATH is optional or environment-specific per the README.

Claude Code

claude mcp add rudraneel93-mcp-guardian -- npx -y @mcp-guardian/server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rudraneel93-mcp-guardian": {
      "command": "npx",
      "args": [
        "-y",
        "@mcp-guardian/server"
      ]
    }
  }
}

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 MIT - declared in the repository

npm package @mcp-guardian/server - the @mcp-guardian scope differs from the repo owner (rudraneel93); confirm it's the project's official package

registry namespace io.github.rudraneel93 is GitHub-verified and matches the repo owner

03 · What Guardian can do

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

Latest releases

v2.3.20 · 2026-05-13

Fixes · Same fixes as v2.3.19 (republished with fresh dist/ build to ensure README is properly included in the npm package): · DB lock sync API fix (61ebce5): Removed unsupported retries option from proper-lockfile's…

v2.3.19 · 2026-05-13

Fixes · DB lock sync API fix (61ebce5): Removed unsupported retries option from proper-lockfile's lockSync() calls. The retries option only exists on the async .lock() method. Passing it to lockSync threw Cannot use…

v2.3.16 · 2026-05-13

Fixes · ESM compatibility: replace CJS require() with createRequire() for Node.js v24 · Response injection blocking: malicious tool responses now actually blocked when policy mode is block · 38 pattern prompt injection…

04 · Who maintains Guardian

mcp-guardian is maintained by rudraneel93. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/rudraneel93/mcp-guardian
category: DevOps & monitoring - ranked #41 of 101 actively-maintained DevOps & monitoring servers as of 2026-08-25.
registry: io.github.rudraneel93/mcp-guardian (active, first published 2026-05-14)
packages: npm:@mcp-guardian/server

06 · Guardian FAQ

What is Guardian?

A safety layer between your AI assistant and the tools it uses. Version 4.1.8 · Website · npm · Install & troubleshooting · Changelog. It runs locally over stdio via the published package.

Is Guardian still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-07. We re-verify nightly.

How do I install Guardian?

Run `npx -y @mcp-guardian/server`. The README documents 5 environment variables (DASHBOARD_ENABLED, DASHBOARD_AUTH_DISABLED, GUARDIAN_CI_BYPASS_LICENSE…) to set first. Set DASHBOARD_ENABLED, DASHBOARD_AUTH_DISABLED, GUARDIAN_CI_BYPASS_LICENSE, DASHBOARD_PORT before connecting. MCP_GUARDIAN_DB_PATH is optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Guardian run locally?

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

07 · Alternatives to Guardian

Alternatives to Guardian

Maintained DevOps & monitoring servers if Guardian isn't the fit.

Pairs well with

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

More DevOps & monitoring MCP servers · SandBase Harness · Kafka Sentinel · Scout MCP Local · Better Stack MCP · Agentic Ledger

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