GoHighLevel MCP Server

A Model Context Protocol (MCP) server providing access to the complete GoHighLevel API. This server enables AI assistants like Claude to interact with GoHighLevel's services including contacts, opportunities, calendars, workflows, and more.

🚀 Quick Start

Or install globally:

🚀 Features

• Complete API Coverage: Access to all GoHighLevel API endpoints

• OAuth2 Support: Automatic token management and refresh

• Bearer Token Auth: Simple API key authentication

• Type-Safe: Full TypeScript implementation with Zod validation

• Stdio Transport: Works with Claude Desktop and other MCP clients

• Auto-Generated: Built from the official OpenAPI specification

📋 Prerequisites

• Node.js >= 20.0.0

• A GoHighLevel account with API access

• API credentials (Bearer token or OAuth2 client credentials)

🔧 Installation

Quick Start with npx (Recommended)

No installation needed! Use npx to run the server directly:

Alternative: Install Globally

For permanent installation:

Then run:

From Source (Development)

For development or customization:

🎯 Usage

Claude Desktop Configuration

Add this to your Claude Desktop configuration (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

Using npx (Recommended):

Using global installation:

Using local installation:

Warp Terminal Configuration

For Warp users, use the npx method:

Running Standalone

🔐 Authentication

Bearer Token

The simplest authentication method. Get your API key from GoHighLevel:

1. Log into your GoHighLevel account

2. Go to Settings → API

3. Copy your API key

4. Set BEARER_TOKEN_BEARERAUTH in your .env file

OAuth2

For more advanced use cases with automatic token refresh:

1. Agency Access: For agency-level operations

   • Set OAUTH_CLIENT_ID_AGENCY_ACCESS and OAUTH_CLIENT_SECRET_AGENCY_ACCESS

2. Location Access: For location-specific operations

   • Set OAUTH_CLIENT_ID_LOCATION_ACCESS and OAUTH_CLIENT_SECRET_LOCATION_ACCESS

The server automatically:

• Obtains access tokens using client credentials flow

• Caches tokens for their lifetime

• Refreshes tokens when expired

See docs/oauth2-configuration.md for detailed OAuth2 configuration.

📚 Available Tools

The MCP server exposes all GoHighLevel API endpoints as MCP tools. Major categories include:

Core Resources

• Contacts: Create, update, search contacts

• Opportunities: Manage sales pipeline

• Calendars: Schedule appointments

• Workflows: Trigger and manage automation

Communication

• Conversations: Messaging and chat

• Emails: Email campaigns and templates

• SMS: Text message campaigns

Marketing

• Social Media Posting: Manage social campaigns

• Blogs: Content management

• Forms: Lead capture

Business Management

• Payments: Process transactions

• Invoices: Billing management

• Users: Team and permission management

• Locations: Sub-account management

To see all available tools, the MCP client will list them when connecting to the server.

🛠️ Development

Project Structure

Scripts

• pnpm run build - Compile TypeScript to JavaScript

• pnpm start - Run the compiled server

• pnpm run typecheck - Check TypeScript types without building

Type Safety

This server uses:

• Zod for runtime validation of inputs and outputs

• TypeScript for compile-time type checking

• json-schema-to-zod for generating validators from OpenAPI schemas

📖 Documentation

• OAuth2 Configuration

• GoHighLevel API Documentation

• Model Context Protocol Specification

🔍 Troubleshooting

Server Won't Start

1. Check Node.js version:

   node --version # Should be >= 20.0.0

2. Verify build succeeded:

   ls -la build/index.js

3. Check environment variables:

   cat .env

Authentication Errors

1. Bearer Token: Verify your API key is correct

2. OAuth2: Ensure client ID and secret are valid

3. Check token expiration (OAuth2 tokens expire after 1 hour)

Claude Desktop Integration Issues

1. Verify the absolute path in claude_desktop_config.json

2. Restart Claude Desktop after configuration changes

3. Check Claude Desktop logs for error messages

Common Issues

"ENOENT" errors: Usually means the path in config is incorrect "Permission denied": Run chmod +x build/index.js "Invalid token": Check your API credentials in .env

🤝 Contributing

This project is auto-generated from the GoHighLevel OpenAPI specification. To update:

1. Download the latest OpenAPI spec from GoHighLevel

2. Run the generator again:

   npx openapi-mcp-generator -i openapi.json -o . -n gohighlevel --force

3. Reinstall dependencies and rebuild

📝 License

This MCP server is generated from GoHighLevel's public API specification. Please refer to GoHighLevel's terms of service for API usage guidelines.

🆘 Support

• GoHighLevel API Issues: Contact GoHighLevel support

• MCP Protocol Issues: See MCP Documentation

• Server Issues: Check this README and troubleshooting section

🎉 Acknowledgments

• Built with openapi-mcp-generator

• Uses Model Context Protocol SDK

• Powered by GoHighLevel's comprehensive API