Dental Calendar MCP Server

A Model Context Protocol (MCP) server for managing dental clinic appointments through Google Calendar, specifically designed for integration with ElevenLabs Conversational AI agents.

Overview

This MCP server provides ElevenLabs AI agents with the ability to:

• Check available appointment slots
• Book new appointments
• Cancel existing appointments
• Reschedule appointments
• Retrieve appointment details
• List appointments in date ranges
• Find appointments by patient phone number

Features

• Google Calendar Integration: Full integration with Google Calendar API v3
• Business Hours Validation: Respects clinic hours and working days
• Appointment Type Management: Different appointment types with appropriate durations
• Conflict Detection: Prevents double-booking and scheduling conflicts
• Natural Language Support: Handles various date/time formats from voice input
• Comprehensive Error Handling: Provides helpful error messages for ElevenLabs agents
• Patient Information Management: Stores patient details in calendar events
• Automatic Reminders: Configures email reminders for appointments

Quick Start

1. Prerequisites

• Node.js 18+ installed
• Google Cloud Console project with Calendar API enabled
• Google OAuth2 credentials

2. Installation

cd google-calendar-mcp
npm install

3. Configuration

1. Copy .env.example to .env:

cp .env.example .env

2. Configure your environment variables in .env:

GOOGLE_CLIENT_ID=your_google_client_id_here
GOOGLE_CLIENT_SECRET=your_google_client_secret_here
GOOGLE_REDIRECT_URI=http://localhost:3000/auth/google/callback
GOOGLE_CALENDAR_ID=primary

3. Set up Google OAuth (see Google OAuth Setup Guide)

4. Build and Run

npm run build
npm start

MCP Tools

check_available_slots

Check available appointment time slots for a specific date.

Parameters:

• date (string): Date to check (YYYY-MM-DD or natural language)
• duration (number, optional): Appointment duration in minutes (default: 30)
• timeRange (object, optional): Limit search to specific hours

Example:

{
  "date": "2024-03-15",
  "duration": 30,
  "timeRange": {
    "start": "09:00",
    "end": "17:00"
  }
}

book_appointment

Book a new dental appointment.

Parameters:

• patient_name (string): Patient's full name
• phone (string): Patient's phone number
• email (string): Patient's email address
• datetime (string): Appointment date/time
• duration (number, optional): Duration in minutes (default: 30)
• appointment_type (string, optional): Type of appointment (default: "checkup")
• notes (string, optional): Additional notes

Example:

{
  "patient_name": "John Smith",
  "phone": "555-123-4567",
  "email": "john@example.com",
  "datetime": "2024-03-15T10:00:00",
  "duration": 45,
  "appointment_type": "cleaning",
  "notes": "First time patient"
}

cancel_appointment

Cancel an existing appointment.

Parameters:

• appointment_id (string): Unique appointment ID

reschedule_appointment

Move an appointment to a new date/time.

Parameters:

• appointment_id (string): Unique appointment ID
• new_datetime (string): New appointment date/time

get_appointment_details

Retrieve detailed information about a specific appointment.

Parameters:

• appointment_id (string): Unique appointment ID

find_appointment_by_phone

Find upcoming appointments for a patient by phone number.

Parameters:

• phone (string): Patient's phone number

list_appointments

List all appointments within a date range.

Parameters:

• date_range (object): Start and end dates
  • start (string): Start date
  • end (string): End date

Integration with ElevenLabs

This MCP server is designed to work seamlessly with ElevenLabs Conversational AI agents. The tools provide structured responses that ElevenLabs agents can easily interpret and respond to naturally.

Example ElevenLabs Integration

1. Configure Claude Desktop to include this MCP server
2. Train your ElevenLabs agent with appointment booking flows
3. Use the MCP tools within your conversational flows

See ElevenLabs Integration Guide for detailed setup instructions.

Configuration

Dental Clinic Settings

Customize clinic-specific settings in config/dental-settings.json:

• Business Hours: Define working hours for each day
• Appointment Types: Configure types, durations, and buffer times
• Holidays: List clinic closure dates
• Policies: Set booking rules and restrictions

Environment Variables

Variable	Description	Required
GOOGLE_CLIENT_ID	Google OAuth2 Client ID	Yes
GOOGLE_CLIENT_SECRET	Google OAuth2 Client Secret	Yes
GOOGLE_REDIRECT_URI	OAuth2 Redirect URI	Yes
GOOGLE_CALENDAR_ID	Calendar ID to use (default: "primary")	No
CLINIC_NAME	Name of the dental clinic	No
CLINIC_TIMEZONE	Clinic timezone (default: "America/New_York")	No
BUSINESS_HOURS_START	Default start time (default: "09:00")	No
BUSINESS_HOURS_END	Default end time (default: "17:00")	No

Development

Building

npm run build

Development Mode

npm run dev

Testing

npm test

Claude Desktop Configuration

Add this MCP server to your Claude Desktop configuration:

{
  "mcpServers": {
    "dental-calendar": {
      "command": "node",
      "args": ["/path/to/dental-ai-system/google-calendar-mcp/dist/index.js"],
      "env": {
        "GOOGLE_CLIENT_ID": "your_client_id",
        "GOOGLE_CLIENT_SECRET": "your_client_secret",
        "GOOGLE_REDIRECT_URI": "your_redirect_uri"
      }
    }
  }
}

Error Handling

The server provides comprehensive error handling with helpful messages:

• Validation Errors: Clear messages about invalid input
• Scheduling Conflicts: Suggestions for alternative times
• API Errors: Graceful handling of Google Calendar API issues
• Business Logic Errors: Helpful guidance for booking policies

Security

• OAuth2 authentication for Google Calendar access
• Patient information stored securely in calendar events
• Input validation and sanitization
• No storage of sensitive credentials in code

Support

For issues and questions:

1. Check the Google OAuth Setup Guide
2. Review the ElevenLabs Integration Guide
3. Verify your configuration matches the examples

License

MIT License - see LICENSE file for details.