Growthbook MCP

🚀 GrowthBook MCP Server

Interact with GrowthBook directly from your LLM client using the GrowthBook MCP server. You can view experiment details, add feature flags, and perform other operations.

🚀 Quick Start

✨ Features

With the GrowthBook MCP server, you can interact with GrowthBook right from your LLM client. Key features include seeing experiment details, adding a feature flag, and more.

📦 Installation

Environment Variables

Use the following environment variables to configure the MCP server:

Find instructions below to add the MCP server to a client. Any client that supports MCP is also compatible. Consult its documentation for how to add the server.

Adding to Different Clients

Cursor

1. Open Cursor Settings → MCP.
2. Click Add new global MCP server.
3. Add an entry for the GrowthBook MCP, following the pattern below:

{
  "mcpServers": {
    "growthbook": {
      "command": "npx",
      "args": ["-y", "@growthbook/mcp"],
      "env": {
        "GB_API_KEY": "YOUR_API_KEY",
        "GB_API_URL": "YOUR_API_URL",
        "GB_APP_ORIGIN": "YOUR_APP_ORIGIN",
        "GB_USER": "YOUR_NAME"
      }
    }
  }
}

4. Save the settings.

You should now see a green active status after the server successfully connects!

VS Code

1. Open User Settings (JSON).
2. Add an MCP entry:

{
  "mcp": {
    "servers": {
      "growthbook": {
        "command": "npx",
        "args": [
          "-y", "@growthbook/mcp"
        ],
        "env": {
          "GB_API_KEY": "YOUR_API_KEY",
          "GB_API_URL": "YOUR_API_URL",
          "GB_APP_ORIGIN": "YOUR_APP_ORIGIN",
          "GB_USER": "YOUR_NAME"
        }
      }
    }
  }
}

3. Save your settings.

GrowthBook MCP is now ready to use in VS Code.

Claude Desktop

1. Open Settings → Developer.
2. Click Edit Config.
3. Open claude_desktop_config.json.
4. Add the following configuration:

{
  "mcpServers": {
    "growthbook": {
      "command": "npx",
      "args": ["-y", "@growthbook/mcp"],
      "env": {
        "GB_API_KEY": "YOUR_API_KEY",
        "GB_API_URL": "YOUR_API_URL",
        "GB_APP_ORIGIN": "YOUR_APP_ORIGIN",
        "GB_USER": "YOUR_NAME"
      }
    }
  }
}

5. Save the config and restart Claude.

A hammer icon should appear in the chat window, indicating that your GrowthBook MCP server is connected and available!

💻 Usage Examples

The GrowthBook MCP server provides a variety of tools for interacting with GrowthBook. Here are some common usage examples:

Feature Flags

• create_feature_flag: Create, add, or wrap an element with a feature flag. Specify key, type, default value, and metadata.
• get_feature_flags: List all feature flags in your GrowthBook instance.
• get_single_feature_flag: Fetch details for a specific feature flag by ID.
• get_stale_safe_rollouts: List all safe rollout rules that have been rolled back or released.
• create_force_rule: Create a feature flag with a targeting condition.
• generate_flag_types: Generates types for feature flags

Experiments

• get_experiments: List all experiments in GrowthBook.
• get_experiment: Fetch details for a specific experiment by ID.
• get_attributes: List all user attributes tracked in GrowthBook (useful for targeting).

Environments

• get_environments: List all environments (e.g., production, staging) configured in GrowthBook.

Projects

• get_projects: List all projects in your GrowthBook instance.

SDK Connections

• get_sdk_connections: List all SDK connections (how GrowthBook connects to your apps).
• create_sdk_connection: Create a new SDK connection for your app, specifying language and environment.

Documentation Search

• search_growthbook_docs: Search the GrowthBook documentation for information on how to use a feature, by keyword or question.