KosmoKrator

ai

ElevenLabs MCP Integration for LangGraph

Connect ElevenLabs to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

6 functions 4 read 2 write API key auth
Submit ElevenLabs feedback View package source

Connect ElevenLabs to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

ElevenLabs MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-eleven-labs": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=eleven-labs",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=eleven-labs --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only ElevenLabs instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

ElevenLabs Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the ElevenLabs integration catalog.

MCP toolSource functionTypeDescription
integration__eleven_labs__elevenlabs_list_voices eleven-labs.elevenlabs_list_voices Read List available ElevenLabs voices. Returns voice names, IDs, labels, and preview URLs. Use this to discover voices for text-to-speech generation.
integration__eleven_labs__elevenlabs_get_voice eleven-labs.elevenlabs_get_voice Read Get detailed information about a specific ElevenLabs voice by its ID, including name, labels, description, and preview URL.
integration__eleven_labs__elevenlabs_generate_speech eleven-labs.elevenlabs_generate_speech Write Generate speech audio from text using an ElevenLabs voice. Returns base64-encoded audio. Specify a voice ID and model, with optional stability and similarity boost settings.
integration__eleven_labs__elevenlabs_generate_sound eleven-labs.elevenlabs_generate_sound Write Generate a sound effect from a text description using ElevenLabs. Returns base64-encoded audio. Describe the sound you want (e.g., "thunder rumbling in the distance").
integration__eleven_labs__elevenlabs_list_models eleven-labs.elevenlabs_list_models Read List available ElevenLabs models. Returns model IDs, names, descriptions, and capabilities. Use this to find the right model for speech or sound generation.
integration__eleven_labs__elevenlabs_get_current_user eleven-labs.elevenlabs_get_current_user Read Get the current ElevenLabs user profile, subscription tier, and character usage information.

Related ElevenLabs Pages

ElevenLabs CLIUse direct JSON commands instead of MCP discovery. ElevenLabs MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.