Guardian MCP Server

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local only

Guardian MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 162 installs a week from pypi.

Runtime AI-threat screening for coding agents: analyze, scan tool calls/outputs & docs (paid).

Installs per day peak 668 · avg 46 · -42% w/w

a month agotoday

162

Installs / week

pypi · ethicore-guardian-mcp

—

Stars

on GitHub

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Last commit

from GitHub

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License

language unknown

Nothing serious here today

Today is the operative word: we check Guardian MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add guardian-mcp -- uvx ethicore-guardian-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "guardian-mcp": {
      "args": [
        "ethicore-guardian-mcp"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.guardian-mcp]
command = "uvx"
args = ["ethicore-guardian-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "guardian-mcp": {
      "args": [
        "ethicore-guardian-mcp"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "guardian-mcp": {
      "args": [
        "ethicore-guardian-mcp"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: ETHICORE_API_KEY (Guardian API key on the Pro plan or higher (hosted edition).), ETHICORE_SELFHOST_LICENSE (Self-hosted Bronze+ license key (local, zero-egress edition).), ETHICORE_SELFHOST_PUBKEY (Self-hosted entitlement public key (issued with the license).). The author declared them in the registry entry; get the values from the project itself.

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Guardian MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Guardian MCP?

Guardian MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package ethicore-guardian-mcp was installed 162 times last week.

How do I connect Guardian MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls ethicore-guardian-mcp straight from pypi; nothing to host, nothing to sign up for.

How many people use Guardian MCP?

The pypi package ethicore-guardian-mcp was installed 162 times in the last week. Week over week that is -42%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.