MCP Server

io.github.growthbook/growthbook-mcp MCP Server

Name: io.github.growthbook/growthbook-mcp MCP Server
Author: io.github.growthbook

io.github.growthbook/growthbook-mcp

Repository Registry

What is the io.github.growthbook/growthbook-mcp MCP server?

MCP Server for interacting with GrowthBook

How to install io.github.growthbook/growthbook-mcp

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

GB_API_KEY
A GrowthBook API key or PAT.
GB_EMAIL
Your email address used with GrowthBook. Used when creating feature flags and experiments.
GB_API_URL
Your GrowthBook API URL. Defaults to `https://api.growthbook.io`.
GB_APP_ORIGIN
Your GrowthBook app URL Defaults to `https://app.growthbook.io`.
GB_HTTP_HEADER_*
Custom HTTP headers to include in all GrowthBook API requests. Use the pattern GB_HTTP_HEADER_<NAME> where <NAME> is converted to proper HTTP header format. Examples: GB_HTTP_HEADER_X_TENANT_ID=abc123, GB_HTTP_HEADER_CF_ACCESS_TOKEN=<token>. Multiple custom headers can be configured.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<YOUR_GB_API_KEY>",
        "GB_EMAIL": "<YOUR_GB_EMAIL>",
        "GB_API_URL": "<YOUR_GB_API_URL>",
        "GB_APP_ORIGIN": "<YOUR_GB_APP_ORIGIN>",
        "GB_HTTP_HEADER_*": "<YOUR_GB_HTTP_HEADER_>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<YOUR_GB_API_KEY>",
        "GB_EMAIL": "<YOUR_GB_EMAIL>",
        "GB_API_URL": "<YOUR_GB_API_URL>",
        "GB_APP_ORIGIN": "<YOUR_GB_APP_ORIGIN>",
        "GB_HTTP_HEADER_*": "<YOUR_GB_HTTP_HEADER_>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<YOUR_GB_API_KEY>",
        "GB_EMAIL": "<YOUR_GB_EMAIL>",
        "GB_API_URL": "<YOUR_GB_API_URL>",
        "GB_APP_ORIGIN": "<YOUR_GB_APP_ORIGIN>",
        "GB_HTTP_HEADER_*": "<YOUR_GB_HTTP_HEADER_>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "growthbook-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<YOUR_GB_API_KEY>",
        "GB_EMAIL": "<YOUR_GB_EMAIL>",
        "GB_API_URL": "<YOUR_GB_API_URL>",
        "GB_APP_ORIGIN": "<YOUR_GB_APP_ORIGIN>",
        "GB_HTTP_HEADER_*": "<YOUR_GB_HTTP_HEADER_>"
      }
    }
  }
}

Claude Code

claude mcp add growthbook-mcp --env GB_API_KEY=<YOUR_GB_API_KEY> --env GB_EMAIL=<YOUR_GB_EMAIL> --env GB_API_URL=<YOUR_GB_API_URL> --env GB_APP_ORIGIN=<YOUR_GB_APP_ORIGIN> --env GB_HTTP_HEADER_*=<YOUR_GB_HTTP_HEADER_> -- npx -y @growthbook/mcp