Authenticator App MCP

How to Install and Use Authenticator App MCP

Authenticator App MCP is a secure server that helps AI agents talk to the Authenticator App, making it easier to manage your 2FA codes and passwords. Here is a simple guide on how to install and use Authenticator App MCP with examples.

Step 1: Install the Authenticator App · 2FA Desktop Version

Before you start using Authenticator App MCP, you need to install the Authenticator App · 2FA desktop version. This app will store your 2FA codes securely.

You can download the desktop version here for your operating system:

• For Windows: Download EXE
• For Mac: Download from Apple Store
• For Linux (Debian based): Download DEB

Install the app by following the normal installation steps for your OS.

Step 2: Create an Access Token in the Authenticator App

To connect the Authenticator App MCP server to your Authenticator App, you need an access token. This token is like a key to let the MCP server communicate with the app securely.

Follow these quick steps:

1. Open the desktop Authenticator App you installed.
2. Go to the Settings menu.
3. Find the MCP Server section.
4. Turn on the MCP Server by toggling the switch to ON.
5. Generate your access token.

Important: You will see the token only once, so copy it carefully and keep it safe. You will need it for the next step.

Step 3: Configure Your MCP Client to Use the Authenticator App MCP Server

Now, you need to tell your AI agent or MCP client to use the Authenticator App MCP server with your access token.

Depending on your computer system, use one of the configurations below.

For MacOS or Linux

Add this configuration to your MCP client's config file:

{
  "mcpServers": {
    "Authenticator App MCP": {
      "command": "npx",
      "args": ["-y", "authenticator-mcp", "--access-token=YOUR-KEY"]
    }
  }
}

Replace YOUR-KEY with the access token you copied earlier.

For Windows

Use this configuration:

{
  "mcpServers": {
    "Authenticator App MCP": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "authenticator-mcp", "--access-token=YOUR-KEY"]
    }
  }
}

Again, replace YOUR-KEY with your actual token.

You can also set the environment variable AUTHENTICATOR_ACCESS_TOKEN to your token if you prefer.

Step 4: Ask Your AI Agent for 2FA Codes or Passwords

Once everything is set up, you just need to open your AI agent's chat interface, such as Cursor's agent mode.

Ask the AI agent to fetch the 2FA code or password for the website and account you want. The AI will securely get these credentials through the MCP server and can even help you automate the login process.

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In a few simple steps, you have installed and started using Authenticator App MCP. This tool makes handling your 2FA codes and passwords secure and easy by connecting AI agents directly to your Authenticator App.