Better Call Claude MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add better-call-claude -- npx -y better-call-claude

{
  "mcpServers": {
    "better-call-claude": {
      "args": [
        "-y",
        "better-call-claude"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.better-call-claude]
command = "npx"
args = ["-y", "better-call-claude"]

{
  "mcpServers": {
    "better-call-claude": {
      "args": [
        "-y",
        "better-call-claude"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "better-call-claude": {
      "args": [
        "-y",
        "better-call-claude"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: BETTERCALLCLAUDE_PHONE_PROVIDER (Phone provider: 'twilio' or 'telnyx'), BETTERCALLCLAUDE_PHONE_NUMBER (Your phone number in E.164 format), BETTERCALLCLAUDE_PHONE_ACCOUNT_SID (Twilio Account SID or Telnyx API Key), BETTERCALLCLAUDE_PHONE_AUTH_TOKEN (Twilio Auth Token or Telnyx API Secret), BETTERCALLCLAUDE_USER_PHONE_NUMBER (Your personal phone number in E.164 format (for outbound calls/SMS)), BETTERCALLCLAUDE_OPENAI_API_KEY (OpenAI API key for speech-to-text (Whisper) and text-to-speech), BETTERCALLCLAUDE_WHATSAPP_NUMBER (WhatsApp number if different from phone number (e.g., Twilio Sandbox)), BETTERCALLCLAUDE_PORT (Local HTTP server port), TAILSCALE_HOSTNAME (Override Tailscale hostname for webhook URL), BETTERCALLCLAUDE_WHATSAPP_PROVIDER (WhatsApp provider: set to 'baileys' for free WhatsApp via WebSocket (no Twilio needed)), BETTERCALLCLAUDE_BAILEYS_AUTH_DIR (Path to Baileys auth state directory (default: data/baileys-auth)), BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE (Max WhatsApp chat history messages to retain (default: 50)). The author declared them in the registry entry; get the values from the project itself.