check_auth_status

THE RISK

Low Risk

Why check_auth_status needs a policy

This tool performs a simple status check—a read-only operation that queries the current state of the WhatsApp client. It has no side effects, does not modify data, execute code, delete information, or involve financial transactions. It is the least risky category of tool operation.

From the tool's definition Tool name 'check_auth_status' and description 'Check if the WhatsApp client is authenticated and connected' indicate a query operation that retrieves the current authentication and connection state without modifying any data or triggering actions.

Documented attack patterns abuse exactly the kind of access check_auth_status gives an agent:

POLICY

How to control check_auth_status

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Whatsapp Web, and nothing reaches the server without passing your rules. This is the rule we recommend for check_auth_status:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_auth_status": {}
  }
}

check_auth_status is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Whatsapp Web — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Mcp Whatsapp Web tools

Destructive logout Logout from WhatsApp and clear the current session Write send_media Send media (image, video, document, audio) via WhatsApp. Write send_message Send a WhatsApp text message to a person or group. Read download_media Download media from a WhatsApp message and return its content. Read get_chat_by_id Get WhatsApp chat metadata by JID. Read get_contact_by_id Get contact details by JID. Read get_direct_chat_by_contact_number Get direct WhatsApp chat JID by contact phone number (less reliable, use get_chat_by_id if Read get_last_interaction Get the most recent message involving a specific contact or group JID.

All 16 Mcp Whatsapp Web tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about check_auth_status

What does the check_auth_status tool do? +

Check if the WhatsApp client is authenticated and connected. It is categorised as a Read tool in the Mcp Whatsapp Web MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_auth_status? +

Register the Mcp Whatsapp Web MCP server in PolicyLayer and add a rule for check_auth_status: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Whatsapp Web. Nothing to install.

What risk level is check_auth_status? +

check_auth_status is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_auth_status? +

Yes. Add a rate_limit block to the check_auth_status rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block check_auth_status completely? +

Set action: deny in the PolicyLayer policy for check_auth_status. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides check_auth_status? +

check_auth_status is provided by the Mcp Whatsapp Web MCP server (mario-andreschak/mcp-whatsapp-web). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Whatsapp Web tool call.

Start from Mcp Whatsapp Web, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →