GrowthBook
OfficialManages GrowthBook feature flags, experiments, and environments through your AI assistant. Lets you create, update, and query A/B tests and feature toggles without leaving your LLM client.
Enables AI to manage feature flags, experiments, environments, and SDK connections in GrowthBook, providing tools for searching documentation, creating targeting rules, and generating implementation code for various programming languages.
What it does
- Create and manage feature flags
- Set up A/B experiments and targeting rules
- Query experiment results and metrics
- Generate implementation code for multiple languages
- Search GrowthBook documentation
- Manage environments and SDK connections
Best for
About GrowthBook
GrowthBook is an official MCP server published by growthbook that provides AI assistants with tools and capabilities via the Model Context Protocol. Manage and optimize feature flags, experiments, and environments in GrowthBook with AI-driven tools for targeting rules It is categorized under developer tools.
How to install
You can install GrowthBook in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.
License
GrowthBook is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
GrowthBook MCP Server
With the GrowthBook MCP server, you can interact with GrowthBook right from your LLM client. See experiment details, add a feature flag, and more.
Setup
Environment Variables Use the following env variables to configure the MCP server.
| Variable Name | Status | Description |
|---|---|---|
| GB_API_KEY | Required | A GrowthBook API key or PAT. When using a PAT, MCP server capabilities are limited by its permissions. E.g., if the user can't create an experiment in the app, they also won't be able to create one with the MCP server. |
| GB_EMAIL | Required | Your email address used with GrowthBook. Used when creating feature flags and experiments. |
| GB_API_URL | Optional | Your GrowthBook API URL. Defaults to https://api.growthbook.io. |
| GB_APP_ORIGIN | Optional | Your GrowthBook app URL Defaults to https://app.growthbook.io. |
| GB_HTTP_HEADER_* | Optional | 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 (underscores become hyphens). Examples: GB_HTTP_HEADER_X_TENANT_ID=abc123 becomes X-Tenant-ID: abc123, GB_HTTP_HEADER_CF_ACCESS_TOKEN=<token> becomes Cf-Access-Token: <token>. Multiple custom headers can be configured. |
Add the MCP server to your AI tool of choice. See the official docs for complete a complete guide.
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