io.github.growthbook/growthbook-mcp

io.github.growthbook/growthbook-mcp·v1.8.1·Other

Quality Score

/100

MCP Server for interacting with GrowthBook

Repository →

§01 Install

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<gb_api_key>",
        "GB_EMAIL": "<gb_email>",
        "GB_API_URL": "<gb_api_url>",
        "GB_APP_ORIGIN": "<gb_app_origin>",
        "GB_HTTP_HEADER_*": "<gb_http_header_*>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "<gb_api_key>",
        "GB_EMAIL": "<gb_email>",
        "GB_API_URL": "<gb_api_url>",
        "GB_APP_ORIGIN": "<gb_app_origin>",
        "GB_HTTP_HEADER_*": "<gb_http_header_*>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y @growthbook/mcp

§02 Environment variables

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.

§03 MCP Quality Score · methodology

freshness

completeness

installability

documentation

stability

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