list_phone_numbers

Lists account phone numbers. Returns: phone number list. Use when: viewing available numbers for outbound calls.

SERVERElevenLabs MCP Enhanced SOURCE199-mcp/mcp-elevenlabs

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/199-mcp-mcp-elevenlabs/list-phone-numbers.md

WHAT IT DOES

What list_phone_numbers does on ElevenLabs MCP Enhanced

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

RISK

Why list_phone_numbers is rated Low

This tool retrieves existing data (phone numbers associated with an account) without modifying, deleting, or executing any operations. It is purely informational and read-only. While phone numbers are sensitive PII, the tool itself performs no destructive or risky action—it only queries and returns data.

From the tool's definition Tool name is 'list_phone_numbers' and description explicitly states it 'Lists account phone numbers' and 'Returns: phone number list'. The stated use case is 'viewing available numbers' which is a read operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_phone_numbers safely

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

list_phone_numbers Allowed

list_phone_numbers 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": {
    "list_phone_numbers": {}
  }
}

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

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

FAQ

Questions about list_phone_numbers

What does the list_phone_numbers tool do? +

Lists account phone numbers. Returns: phone number list. Use when: viewing available numbers for outbound calls. It is categorised as a Read tool in the ElevenLabs MCP Enhanced MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_phone_numbers? +

Register the ElevenLabs MCP Enhanced MCP server in PolicyLayer and add a rule for list_phone_numbers: 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 MCP Enhanced. Nothing to install.

What risk level is list_phone_numbers? +

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

Can I rate-limit list_phone_numbers? +

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

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

list_phone_numbers is provided by the ElevenLabs MCP Enhanced MCP server (199-mcp/mcp-elevenlabs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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