GrowthBook REST API

REST discovered

Details

URL: https://api.growthbook.io
Docs: https://docs.growthbook.io/app/api

Authentication

GrowthBook API key / secret key api_key discovered Get key ↗

In the GrowthBook app, open API Keys from Settings and create a New Secret Key. The docs say this key is used for the REST API, CLI, and MCP server. For self-hosted instances, use the equivalent API keys page in your own GrowthBook app.