create_voice_from_preview · ElevenLabs MCP Server MCP

WHAT IT DOES

What create_voice_from_preview does on ElevenLabs MCP Server

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

WHY IT NEEDS A POLICY

Why create_voice_from_preview needs a policy

The tool creates voice data (reversible operation), fitting the Write category. Severity is medium because voice creation could be misused for voice spoofing or unauthorized audio synthesis, but the impact depends on downstream usage and is not inherently destructive or financial.

From the tool's definition Tool name 'create_voice_from_preview' indicates voice creation/modification. Description is empty, so full intent is unclear. Context from server's purpose (voice cloning, audio processing) suggests this creates or modifies voice data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_voice_from_preview Rate-limited

create_voice_from_preview 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": {
    "create_voice_from_preview": {
      "limits": [
        {
          "counter": "create_voice_from_preview_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches ElevenLabs MCP Server, so you can run agents against it safely.

FAQ

Questions about create_voice_from_preview

What does the create_voice_from_preview tool do? +

create_voice_from_preview. It is categorised as a Write tool in the ElevenLabs MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_voice_from_preview? +

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

What risk level is create_voice_from_preview? +

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

Can I rate-limit create_voice_from_preview? +

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

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

create_voice_from_preview is provided by the ElevenLabs MCP Server MCP server (nguyendinhsinh361/elevenlabs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.