FortressFlag documentation
Ship your first flag in minutes — and understand exactly what's happening when you do.
Where would you like to start?
Section titled “Where would you like to start?”Create your first flagSign up, toggle a flag in the demo world, and watch the change arrive in a real API response — no SDK needed yet.
Install an SDKClient SDKs for iOS, Android, and the web; server SDKs for Go, Node.js, Python, and Java — each quickstart gets a flag into your code in a few minutes, fail-safe from the first line.
Understand the modelFlags, targeting, the two data planes, and why billing counts devices — the concepts everything else builds on.
When the first flag is live, the Guides section covers the day-two work: inviting your team, rolling out gradually, production approvals, scheduled changes, usage and billing, the audit log, and locking sign-in down with two-factor or SSO.