Twelvelabs MCP Server

MCP server for ElevenLabs Conversational AI — manage agents, knowledge base, conversations, voices

Local serverstdio

What is the Twelvelabs MCP server?

Twelvelabs MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. MCP server for ElevenLabs Conversational AI — manage agents, knowledge base, conversations, voices.

What you get

An enhanced MCP (Model Context Protocol) server that gives any compatible MCP client direct access to the ElevenLabs Conversational AI API -- including capabilities the official ElevenLabs MCP connector doesn't expose.

What the assistant can call

Once Twelvelabs is connected, these are the calls the assistant has available:

  • twelvelabs_list_agents — List all agents in your account
  • twelvelabs_get_agent — Full config: LLM model, voice, KB docs, webhook, prompt preview
  • twelvelabs_get_agent_prompt — Full untruncated system prompt text
  • twelvelabs_update_agent_prompt — Replace system prompt and/or first message
  • twelvelabs_update_agent_settings — Change temperature, voice, TTS settings, language
  • twelvelabs_update_agent_conversation_capabilities — Enable chat file uploads and set the maximum-duration message
  • twelvelabs_list_agent_conversations — Recent conversations for one agent
  • twelvelabs_get_agent_webhook — Current webhook URL
  • twelvelabs_set_agent_webhook — Set or remove webhook URL
  • twelvelabs_list_kb_docs — All KB docs with size and creation date
  • twelvelabs_get_kb_doc — Full extracted text content of a doc
  • twelvelabs_add_kb_text — Add a plain text document

Configuration and credentials

You will need one environment variable: ELEVENLABS_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Setting it up

twelvelabs-mcp-server on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.

Choosing this one

Among the AI and media services options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Twelvelabs's toolset — twelvelabs_list_agents, twelvelabs_get_agent, twelvelabs_get_agent_prompt and 11 more — is a fair guide to whether it matches your workflow. It is maintained by micro-JAY; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Twelvelabs.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the twelvelabs mcp server does with a few real requests.

Available tools

ToolWhat it does
twelvelabs_list_agentsList all agents in your account
twelvelabs_get_agentFull config: LLM model, voice, KB docs, webhook, prompt preview
twelvelabs_get_agent_promptFull untruncated system prompt text
twelvelabs_update_agent_promptReplace system prompt and/or first message
twelvelabs_update_agent_settingsChange temperature, voice, TTS settings, language
twelvelabs_update_agent_conversation_capabilitiesEnable chat file uploads and set the maximum-duration message
twelvelabs_list_agent_conversationsRecent conversations for one agent
twelvelabs_get_agent_webhookCurrent webhook URL
twelvelabs_set_agent_webhookSet or remove webhook URL
twelvelabs_list_kb_docsAll KB docs with size and creation date
twelvelabs_get_kb_docFull extracted text content of a doc
twelvelabs_add_kb_textAdd a plain text document
twelvelabs_add_kb_urlAdd a web page by URL
twelvelabs_delete_kb_docPermanently delete a doc

How to install the Twelvelabs MCP server

{
  "mcpServers": {
    "twelvelabs": {
      "command": "node",
      "args": ["/path/to/twelvelabs-mcp-server/dist/index.js"],
      "env": {
        "ELEVENLABS_API_KEY": "your-api-key-here"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
ELEVENLABS_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use Twelvelabs to twelvelabs list agents.
  • Use Twelvelabs to twelvelabs get agent.
  • Use Twelvelabs to twelvelabs get agent prompt.

Frequently asked questions

It connects Twelvelabs to MCP-compatible AI assistants such as Claude and Cursor, exposing 14 tools (twelvelabs_list_agents, twelvelabs_get_agent, twelvelabs_get_agent_prompt, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Twelvelabs directly.