wa_get_pairing_code
Get a numeric pairing code for authenticating a Baileys instance. The code is entered on the phone in WhatsApp > Linked Devices > Link with phone number.
This record as markdown: /tools/delltrak-wamcp/wa-get-pairing-code.md
What wa_get_pairing_code does on WA MCP
AI agents call wa_get_pairing_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.
Why wa_get_pairing_code is rated Low
This tool retrieves an authentication code for device linking, analogous to fetching a one-time password or QR code. It has no side effects beyond reading/generating a pairing credential. While authentication codes can be sensitive, this falls under Read category as it merely retrieves a code rather than executing actions, modifying data, or managing resources.
From the tool's definition Tool description states it 'Get[s] a numeric pairing code' — a retrieval operation with no modification of data or state. The code is read-only output used for authentication setup, not execution of commands or modification of WhatsApp data.
Attacks that exploit this kind of access
The rule that runs wa_get_pairing_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_pairing_code, this is the rule to start with:
wa_get_pairing_code is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect WA MCP, apply this rule, and every wa_get_pairing_code call is checked against it from then on.
Questions about wa_get_pairing_code
Get a numeric pairing code for authenticating a Baileys instance. The code is entered on the phone in WhatsApp > Linked Devices > Link with phone number. It is categorised as a Read tool in the WA MCP MCP Server, which means it retrieves data without modifying state.
Register the WA MCP server in PolicyLayer and add a rule for wa_get_pairing_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.
wa_get_pairing_code is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the wa_get_pairing_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.
Set action: deny in the PolicyLayer policy for wa_get_pairing_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.
wa_get_pairing_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.
More on WA, and thousands of servers like it.
This server
Across the catalogue