How to integrate HighLevel MCP with Atomic Agent

Connect Atomic Agent 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.

HighLevel MCP logoHighLevel MCP
Api Key

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

36 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including HighLevel.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a HighLevel account. See the Atomic Agent documentation for installation instructions.

Also integrate HighLevel MCP with

How Atomic Agent connects to HighLevel

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect HighLevel to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in HighLevel. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your HighLevel account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the HighLevel MCP server, and what's possible with it?

The HighLevel MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your HighLevel account. It provides structured and secure access so your agent can perform HighLevel operations on your behalf.

Use HighLevel from Atomic Agent

With your account connected, ask Atomic Agent to work with HighLevel in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

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.

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. Atomic Agent 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.

Start with HighLevel MCP.It takes 30 seconds.

Managed auth, hosted MCP servers, and every HighLevel MCP tool your agent needs.Free to start.

Start building