ElevenLabs Voice Agent MCP

What it does

This server integrates the ElevenLabs Voice Agent API, providing a comprehensive set of tools to create, configure, and monitor conversational AI voice agents. It enables developers to build agents with custom knowledge bases, webhook tools, and the ability to perform outbound calling via Twilio.

Tools

• elevenlabs_create_agent: Create new voice agents with full prompt and voice configuration.
• elevenlabs_add_knowledge_base: Attach documents or URLs to an agent's knowledge base.
• elevenlabs_create_webhook_tool: Set up external API integrations for the agent.
• elevenlabs_start_outbound_call: Initiate a single voice call to a phone number.
• elevenlabs_submit_batch_call: Trigger mass outbound calling jobs for thousands of recipients.
• elevenlabs_get_conversation: Analyze and retrieve transcripts of agent interactions.
• elevenlabs_import_phone_number: Connect Twilio numbers to the ElevenLabs workspace.

Installation

Install via npx for the fastest setup. Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "elevenlabs-voice-agents": {
      "command": "npx",
      "args": ["-y", "elevenlabs-voice-agent-mcp"],
      "env": { "ELEVENLABS_API_KEY": "your_api_key_here" }
    }
  }
}

Supported hosts

• Claude
• Cursor
• Codex
• VS Code