growthbook.io
GrowthBook is a platform for feature flags, experimentation, and product analytics. It is available as GrowthBook Cloud and as a self-hosted/open-source deployment.
GrowthBook exposes a REST API, a public read-only SDK Connection HTTP endpoint, an npm-installed CLI, and an npm-delivered MCP server; authenticated surfaces use GrowthBook-issued API keys, and the MCP server also accepts a GrowthBook PAT.
- GrowthBook MCP Serverdiscovered
- GrowthBook REST APIdiscovered
- GrowthBook SDK Connection Endpointdiscovered
- GrowthBook CLIdiscovered
$ growthbook auth login --apiKey XXXAcquired by the CLI — running growthbook auth login --apiKey XXX opens the auth flow and stores the credential.
In the GrowthBook app, go to API Keys. The MCP docs state GB_API_KEY may be a GrowthBook API key or PAT; create a personal token there if your workspace exposes that option. Use it where the docs ask for GB_API_KEY. For self-hosted instances, use your own app's API keys settings page.
conventions · 1/7 published
- integrations.json——
- llms.txt✓https://growthbook.io/llms.txt
- API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing