list_speech_engines

A read tool on the Elevenlabs MCP server.

SERVERElevenlabs SOURCE@aiwerk/mcp-server-elevenlabs

Low RISK CLASS

Category Read

Parameters 50 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aiwerk-mcp-server-elevenlabs/list-speech-engines.md

WHAT IT DOES

What list_speech_engines does on Elevenlabs

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

Parameter	Type	Required	Description
`cursor`	string \| null	—	Used for fetching next page. Cursor is returned in the response.
`search`	string \| null	—	Search term to filter Speech Engines by name
`sort_by`	object	—	The field to sort the results by
`page_size`	number	—	How many Speech Engines to return at maximum. Can not exceed 100, defaults to 30.
`sort_direction`	string	—	The direction to sort the results

Parameters from the server's own tool schema.

RISK

Why list_speech_engines is rated Low

Even though list_speech_engines only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_speech_engines 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 list_speech_engines, this is the rule to start with:

list_speech_engines Allowed

list_speech_engines 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_speech_engines": {}
  }
}

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

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

FAQ

Questions about list_speech_engines

What does the list_speech_engines tool do? +

list_speech_engines is a read tool on the Elevenlabs MCP server. It is categorised as a Read tool in the Elevenlabs MCP Server, which means it retrieves data without modifying state.

What parameters does list_speech_engines accept? +

list_speech_engines accepts 5 parameters: cursor, search, sort_by, page_size, sort_direction. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on list_speech_engines? +

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

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

Can I rate-limit list_speech_engines? +

Yes. Add a rate_limit block to the list_speech_engines 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_speech_engines completely? +

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

list_speech_engines 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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