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How to connect HighLevel MCP with ChatGPT

Connect ChatGPT to HighLevel MCP. Create opportunity for acme corp contact, list open opportunities for location a, and more using natural language, with authentication handled for you.

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HighLevel MCP is a location-scoped CRM and marketing platform. It's built to manage contacts, conversations, appointments, and opportunities.

36 Tools

How to connect HighLevel MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your HighLevel account to ChatGPT via Composio Connect, so it can manage your contacts, send SMS and email messages, schedule appointments, create opportunities, and view conversations through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's HighLevel integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect HighLevel to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread HighLevel messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize HighLevel.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting HighLevel

  • Create opportunity for Acme Corp contact
  • List open opportunities for location A
  • Send SMS reply to conversation 123

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

Every HighLevel MCP action and event your agent gets out of the box.

Blogs check-url-slug-exists

Validates whether a URL slug is available for a blog post before publishing.

Blogs create-blog-post

Creates a new blog post for a blog site with comprehensive content and metadata.

Blogs get-all-blog-authors-by-location

Retrieves all blog authors for a specific location with pagination support.

Blogs get-all-categories-by-location

Retrieves all blog categories for a specific location with pagination support.

Blogs get-blog-post

Retrieves blog posts for a specific blog site using blog ID with filtering and pagination.

Blogs get-blogs

Retrieves a list of blog sites for a location with pagination and search support.

Blogs update-blog-post

Modifies an existing blog post including content, metadata, categories, tags, and publication settings.

Calendars get-appointment-notes

Retrieves notes associated with a specific appointment.

Calendars get-calendar-events

Retrieves calendar events and appointments within a specified time range.

Contacts add-tags

Adds one or more tags to an existing contact record.

Contacts create-contact

Creates a new contact record in the CRM with personal and business information.

Contacts get-all-tasks

Retrieves all tasks associated with a specific contact.

Contacts get-contact

Retrieves detailed contact information by contact ID.

Contacts get-contacts

Retrieves a list of contacts with pagination support.

Contacts remove-tags

Removes specified tags from a contact record.

Contacts update-contact

Modifies existing contact information in the CRM.

Contacts upsert-contact

Creates a new contact or updates an existing contact based on duplicate detection settings.

Conversations get-messages

Retrieves messages from a specific conversation with optional filtering by message type.

Conversations search-conversation

Searches conversations using multiple filters including contact, assigned user, followers, mentions, status, message type, and date range.

Conversations send-a-new-message

Sends a new message to a contact through various channels including SMS, Email, WhatsApp, Instagram, Facebook, Custom, or Live Chat.

Emails create-template

Creates a new email template with various types including HTML, builder, blank, folder, or imported templates.

Emails fetch-template

Retrieves email templates for a location with advanced filtering and pagination.

Locations get-custom-fields

Retrieves custom fields for a location with optional filtering by model type.

Locations get-location

Retrieves detailed information for a sub-account (formerly location) by location ID.

Opportunities get-opportunity

Retrieves detailed information for a specific opportunity by opportunity ID.

Opportunities get-pipelines

Retrieves all sales pipelines for a location.

Opportunities search-opportunity

Searches and filters opportunities in the sales pipeline using multiple criteria.

Opportunities update-opportunity

Modifies an existing opportunity in the sales pipeline.

Payments get-order-by-id

Retrieves detailed information for a specific order using its unique order ID.

Payments list-transactions

Retrieves a paginated list of transactions with comprehensive filtering options.

Social-media-posting create-post

Creates a new social media post for multiple platforms.

Social-media-posting edit-post

Modifies an existing social media post including content, media, scheduling, and platform-specific settings.

Social-media-posting get-account

Retrieves a list of connected social media accounts and groups for a location.

Social-media-posting get-post

Retrieves detailed information for a specific social media post by post ID.

Social-media-posting get-posts

Retrieves social media posts with advanced filtering and pagination.

Social-media-posting get-social-media-statistics

Retrieve analytics data for multiple social media accounts.

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FAQ

Frequently asked questions

With a standalone HighLevel MCP server, the agents and LLMs can only access a fixed set of HighLevel tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from HighLevel and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. ChatGPT fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right HighLevel tools.

Yes, absolutely. You can configure which HighLevel scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your HighLevel data and credentials are handled as safely as possible.

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