KosmoKrator

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ElevenLabs MCP Integration for LangGraph

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

8 functions 5 read 3 write API key auth
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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-elevenlabs": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=elevenlabs",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=elevenlabs --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__elevenlabs__elevenlabs_text_to_speech elevenlabs.elevenlabs_text_to_speech Write Convert text to speech audio using an ElevenLabs voice. Returns base64-encoded audio. Choose a voice ID and model ID to control the output.
integration__elevenlabs__elevenlabs_list_voices elevenlabs.elevenlabs_list_voices Read List all available voices in your ElevenLabs account, including pre-made and cloned voices. Use this to discover voice IDs for text-to-speech.
integration__elevenlabs__elevenlabs_get_voice elevenlabs.elevenlabs_get_voice Read Get detailed information about a specific ElevenLabs voice, including its settings, labels, and fine-tuning info.
integration__elevenlabs__elevenlabs_create_voice elevenlabs.elevenlabs_create_voice Write Create a new voice clone in ElevenLabs. Provide a name, optional audio sample file paths or base64-encoded data, and an optional description.
integration__elevenlabs__elevenlabs_delete_voice elevenlabs.elevenlabs_delete_voice Write Permanently delete a voice from your ElevenLabs account. This action cannot be undone.
integration__elevenlabs__elevenlabs_get_models elevenlabs.elevenlabs_get_models Read List all available ElevenLabs text-to-speech models, including their IDs, names, and language support. Use model IDs when calling text_to_speech.
integration__elevenlabs__elevenlabs_get_history elevenlabs.elevenlabs_get_history Read Browse your ElevenLabs generation history. Returns a paginated list of past text-to-speech requests with metadata.
integration__elevenlabs__elevenlabs_get_current_user elevenlabs.elevenlabs_get_current_user Read Get your ElevenLabs account details, including subscription tier, character usage, and remaining quota.

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.