get_2fa_code
Retrieve the current 2FA code for a username when logging into a website.
LABSCO SUMMARY
Credential retrieval that lets an agent get through a two-factor login instead of stalling at it.
The account list, password, and code tools cover the three things a login needs, so an agent can look up which account applies, fetch its password, and read the current 2FA code — with the credentials staying in the Authenticator App and reached only through the token you issue.
What it is
A server that bridges an AI agent to the Authenticator App desktop program, so during an automated login the agent can pull the current one-time code or the stored password for an account.
What you get
- get_2fa_code returns the current 2FA code for a username
- get_password returns the stored password for a username
- get_account_list returns the accounts available to use when logging in
Requirements
The Authenticator App desktop program with its MCP server switched on, and an access token generated there and pasted into your client configuration. Runs through npx.
Setup effort
One command plus a key — npx -y authenticator-mcp --access-token=<YOUR_ACCESS_TOKEN>, then supply credentials
USE CASES
01
Completing a login that needs a one-time code
get_2fa_code returns the current code for the account so the agent can finish a two-factor sign-in it would otherwise be blocked on.
02
Filling a saved password
get_password returns the stored password for a username during an automated login.
03
Picking the right account first
get_account_list shows which accounts are available, so the agent chooses the correct one before fetching its credentials.
3 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
get_account_list
Retrieve the accounts can be used when logging into a website.
get_password
Retrieve the password for a username when logging into a website.
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools when we connected. All three read from the desktop app's vault: your account list, 2FA codes and saved passwords. Adding or editing accounts happens in the app.
Requires
- npx on PATH
- An access token from the Authenticator App desktop program (Settings → MCP Server), passed as --access-token or as AUTHENTICATOR_ACCESS_TOKEN in the env field
Where it runs
Both documented setups run the server on your machine.
CONTEXT COST
Light Standing cost
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Server setup
TERMINAL
npx -y authenticator-mcp --access-token=<YOUR_ACCESS_TOKEN>MCP Clients
Any MCP client — macOS, Linux
ANY MCP CLIENT — MACOS, LINUX · JSON
{
"mcpServers": {
"Authenticator App MCP": {
"command": "npx",
"args": [
"-y",
"authenticator-mcp",
"--access-token=<YOUR_ACCESS_TOKEN>"
]
}
}
}Any MCP client — Windows
ANY MCP CLIENT — WINDOWS · JSON
{
"mcpServers": {
"Authenticator App MCP": {
"command": "cmd",
"args": [
"/c",
"npx",
"-y",
"authenticator-mcp",
"--access-token=<YOUR_ACCESS_TOKEN>"
]
}
}
}
