How do I install Growthbook?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Growthbook need an API key?

The publisher lists these environment variables: GB_API_KEY, GB_API_URL, GB_SKILLS_ENABLED, GB_HTTP_HEADER_*.

What transport does Growthbook use?

Growthbook runs locally over stdio.

When was Growthbook last checked?

Last checked 2026-11-09. Thin MCP server for GrowthBook — skill loader + authenticated API passthrough

Growthbook MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

npx -y @growthbook/[email protected]

Credentials from the publisher

GB_API_KEY — A GrowthBook API key or personal access token.
GB_API_URL — Your GrowthBook API URL. Defaults to https://api.growthbook.io.
GB_SKILLS_ENABLED — Set to false to disable bundled skill tools (growthbook_list_skills, growthbook_read_skill). Defaults to true.
GB_HTTP_HEADER_* — Custom HTTP headers via GB_HTTP_HEADER_<NAME> (e.g. GB_HTTP_HEADER_CF_ACCESS_TOKEN).

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1GB_API_KEY=<value> GB_API_URL=<value> GB_SKILLS_ENABLED=<value> GB_HTTP_HEADER_*=<value> claude mcp add io.github.growthbook-growthbook-mcp -- npx -y @growthbook/mcp@2.2.0

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.growthbook-growthbook-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "@growthbook/[email protected]"8      ],9      "env": {10        "GB_API_KEY": "<value>",11        "GB_API_URL": "<value>",12        "GB_SKILLS_ENABLED": "<value>",13        "GB_HTTP_HEADER_*": "<value>"14      }15    }16  }17}

claude_desktop_config.json

Local · npmPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version

From the publisher

Documentation

README is not crawled yet. Open the repository

Add this server

Host a copy with our keys and logs.

Server facts

Documentation

Growthbook

Tools

Questions

How do I install Growthbook?

Does Growthbook need an API key?

What transport does Growthbook use?

When was Growthbook last checked?