whatsapp_outbound_message

Send An Outbound Message Via Whatsapp.

SERVERElevenlabs SOURCE@aiwerk/mcp-server-elevenlabs

Medium RISK CLASS

Category Write

Parameters 76 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aiwerk-mcp-server-elevenlabs/whatsapp-outbound-message.md

WHAT IT DOES

What whatsapp_outbound_message does on Elevenlabs

AI agents use whatsapp_outbound_message to create or update resources in Elevenlabs, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Elevenlabs environment.

Parameter	Type	Required
`agent_id`	string	Yes
`template_name`	string	Yes
`template_params`	array	Yes
`whatsapp_user_id`	string	Yes
`template_language_code`	string	Yes
`whatsapp_phone_number_id`	string	Yes
`conversation_initiation_client_data`	object	—

Parameters from the server's own tool schema.

RISK

Why whatsapp_outbound_message is rated Medium

An AI agent can call whatsapp_outbound_message faster than any human can review: one bad instruction and it creates or modifies resources in Elevenlabs by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs whatsapp_outbound_message safely

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

whatsapp_outbound_message Rate-limited

whatsapp_outbound_message stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "whatsapp_outbound_message": {
      "limits": [
        {
          "counter": "whatsapp_outbound_message_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about whatsapp_outbound_message

What does the whatsapp_outbound_message tool do? +

Send An Outbound Message Via Whatsapp. It is categorised as a Write tool in the Elevenlabs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does whatsapp_outbound_message accept? +

whatsapp_outbound_message accepts 7 parameters: agent_id, template_name, template_params, whatsapp_user_id, template_language_code, whatsapp_phone_number_id, conversation_initiation_client_data. Required: agent_id, template_name, template_params, whatsapp_user_id, template_language_code, whatsapp_phone_number_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on whatsapp_outbound_message? +

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

What risk level is whatsapp_outbound_message? +

whatsapp_outbound_message is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit whatsapp_outbound_message? +

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

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

whatsapp_outbound_message is provided by the Elevenlabs MCP server (@aiwerk/mcp-server-elevenlabs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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