MCP Tool Reference Medium Risk

add_voice_to_library

Add a custom voice to the library

Part of the ElevenLabs MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

elevenlabs/elevenlabs-mcp Write

WHEN AI AGENTS USE THIS TOOL

AI agents use add_voice_to_library to create or modify resources in ElevenLabs. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON ADD_VOICE_TO_LIBRARY

Without a policy, an AI agent could call add_voice_to_library repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach ElevenLabs.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

elevenlabs.yaml 
tools:
  add_voice_to_library:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full ElevenLabs policy for all 10 tools.

DETAILS

Tool Name

add_voice_to_library

Category

Write

MCP Server

ElevenLabs MCP Server

Risk Level

Medium

MORE ELEVENLABS TOOLS

create_voice Write
Clone a voice from audio samples
get_models Read
Return available text-to-speech and transcription models
get_voices Read
Retrieve available voices
convert_audio Other
Apply voice conversion effects to audio
design_voice Other
Generate a new voice from a text description
generate_sound_effect Other
Generate sound effects from text descriptions
isolate_audio Other
Isolate speech from background noise
text_to_speech Other
Convert text into natural-sounding speech

View all 10 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the add_voice_to_library tool do?

Add a custom voice to the library. 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.

How do I enforce a policy on add_voice_to_library?

Add a rule in your Intercept YAML policy under the tools section for add_voice_to_library. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the ElevenLabs MCP server.

What risk level is add_voice_to_library?

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

Can I rate-limit add_voice_to_library?

Yes. Add a rate_limit block to the add_voice_to_library rule in your Intercept 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 add_voice_to_library completely?

Set action: deny in the Intercept policy for add_voice_to_library. 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 add_voice_to_library?

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

ENFORCE POLICIES ON ELEVENLABS

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full ElevenLabs policy →