create_voice

Create A New Voice From Voice Preview. Spends ElevenLabs credits.

SERVERElevenlabs SOURCE@aiwerk/mcp-server-elevenlabs

Medium RISK CLASS

Category Write

Parameters 53 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/create-voice.md

WHAT IT DOES

What create_voice does on Elevenlabs

AI agents use create_voice 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	Description
`labels`	object	—
`voice_name`	string	Yes	Name to use for the created voice.
`voice_description`	string	Yes	Description to use for the created voice.
`generated_voice_id`	string	Yes	The generated_voice_id to create; obtain it from POST /v1/text-to-voice/design, POST /v1/text-to-voice/:voice_id/remix, or the response headers when generating
`played_not_selected_voice_ids`	object	—

Parameters from the server's own tool schema.

RISK

Why create_voice is rated Medium

An AI agent can call create_voice 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 create_voice 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 create_voice, this is the rule to start with:

create_voice Rate-limited

create_voice 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": {
      "limits": [
        {
          "counter": "create_voice_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 create_voice call is checked against it from then on.

FAQ

Questions about create_voice

What does the create_voice tool do? +

Create A New Voice From Voice Preview. Spends ElevenLabs credits. 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 create_voice accept? +

create_voice accepts 5 parameters: labels, voice_name, voice_description, generated_voice_id, played_not_selected_voice_ids. Required: voice_name, voice_description, generated_voice_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_voice? +

Register the Elevenlabs MCP server in PolicyLayer and add a rule for create_voice: 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 create_voice? +

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

Can I rate-limit create_voice? +

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

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

create_voice 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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