growthbook-mcp

local MCP server

Installation

Terminal

claude mcp add growthbook-mcp -e GB_API_KEY=... -e GB_API_URL=... -e GB_SKILLS_ENABLED=... -e GB_HTTP_HEADER_*=... -- npx -y @growthbook/mcp

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "...",
        "GB_API_URL": "...",
        "GB_SKILLS_ENABLED": "...",
        "GB_HTTP_HEADER_*": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Thin MCP server for GrowthBook — skill loader + authenticated API passthrough

Questions

growthbook-mcp is a local MCP server distributed as the npm package @growthbook/mcp.

Run: claude mcp add growthbook-mcp -e GB_API_KEY=... -e GB_API_URL=... -e GB_SKILLS_ENABLED=... -e GB_HTTP_HEADER_*=... -- npx -y @growthbook/mcp

Run: codex mcp add growthbook-mcp --env GB_API_KEY=... --env GB_API_URL=... --env GB_SKILLS_ENABLED=... --env GB_HTTP_HEADER_*=... -- npx -y @growthbook/mcp

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