wa_get_qr_code

Get the QR code as a base64 image for authenticating a Baileys instance. Returns null if no QR code is available (already authenticated or not yet connecting).

SERVERWA MCP SOURCEdelltrak/wamcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/delltrak-wamcp/wa-get-qr-code.md

WHAT IT DOES

What wa_get_qr_code does on WA MCP

AI agents call wa_get_qr_code to retrieve information from WA MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why wa_get_qr_code is rated Low

The tool retrieves and returns a QR code image for authentication purposes. This is purely a data retrieval operation ('Get') that does not modify, delete, or execute any operations. While QR codes are security-sensitive artifacts, exposure of this retrieval mechanism itself carries low risk compared to using the QR code maliciously (which would require separate execution).

From the tool's definition Tool description states 'Get the QR code as a base64 image' — a retrieval operation with no data modification or side effects. Returns authentication QR code data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wa_get_qr_code safely

PolicyLayer is an MCP gateway: it sits between your AI agents and WA MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wa_get_qr_code, this is the rule to start with:

wa_get_qr_code Allowed

wa_get_qr_code is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect WA MCP, apply this rule, and every wa_get_qr_code call is checked against it from then on.

FAQ

Questions about wa_get_qr_code

What does the wa_get_qr_code tool do? +

Get the QR code as a base64 image for authenticating a Baileys instance. Returns null if no QR code is available (already authenticated or not yet connecting). It is categorised as a Read tool in the WA MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on wa_get_qr_code? +

Register the WA MCP server in PolicyLayer and add a rule for wa_get_qr_code: 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 WA MCP. Nothing to install.

What risk level is wa_get_qr_code? +

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

Can I rate-limit wa_get_qr_code? +

Yes. Add a rate_limit block to the wa_get_qr_code 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 wa_get_qr_code completely? +

Set action: deny in the PolicyLayer policy for wa_get_qr_code. 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 wa_get_qr_code? +

wa_get_qr_code is provided by the WA MCP server (delltrak/wamcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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