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Mcp Guardian

Manage / Proxy / Secure your MCP Servers

Reviewed overview

MCP 服务器概览

# MCP Guardian

[mcp-guardian.org](https://mcp-guardian.org)

Overview

MCP Guardian manages your LLM assistant’s access to MCP servers, handing you realtime control of your LLM’s activity.

**📜 Message Logging** - See traces for all of an LLM’s MCP server activity

**💂 Message Approvals** - Approve and deny individual tool call messages in real time

**🤖 Automated Message Scans** - Realtime automated checks for safety, privacy, etc (Coming Soon)

<p align=“center”> <img src=“./docs/src/resources/splash-page.png” /> </p>

MCP Guardian also makes it a breeze to manage multiple MCP server configurations. Quickly switch between server collections without having to manually manage configuration files for your MCP host applications.

Development

This project uses [nix](https://nixos.org/) to manage a development environment that can be used on Linux and macOS.

Quick Start - Linux / macOS

  1. [Install nix](https://nixos.org/download/)

  2. Enable nix flakes ```bash sudo sh -c ‘echo “experimental-features = nix-command flakes” >> /etc/nix/nix.conf’ ```

  3. Enter dev shell ```bash nix develop ```

  4. Build project ```bash just build-release ```

  5. `mcp-guardian` and `mcp-guardian-proxy` are now in `_build/bin/` which is in `PATH` of the dev shell.

Quick Start - Windows

  1. [Install git](https://git-scm.com/downloads/win) with symlink support (otherwise you will need to restore `./mcp-guardian/bindings` before building).

  2. [Install rustup](https://www.rust-lang.org/tools/install).

  3. [Install nodejs](https://nodejs.org/en/download).

  4. Install `yarn`. ```bash npm install --global yarn ```

  5. Install .dll dependencies. The easiest way to do this is to [install Visual Studio](https://visualstudio.microsoft.com/downloads/) and install the C++ development packages.

  6. Install just ```bash cargo install just ```

  7. Enter repo root with `git-bash` (otherwise `just` won’t work and you’ll need to call `cargo directly`)

  8. Build project ```bash just build-release ```

Justfile

```present just --list Available recipes: build build-release clean do DIR +RECIPE do-all +RECIPE fmt fmt-check lint readme-check readme-update test ```