How do I connect my fantasy league?
Open Scout and ask about your league by name. Scout responds with what it can currently do for that league, so the accurate answer for your specific platform comes from Scout in the moment rather than a fixed list here.
Why the answer lives inside Scout
Which platforms show up here changes as new ones are added, and a page like this one goes stale the moment a new platform lands. Scout stays current, which makes it the more reliable source.
Sleeper league reading is available today. A Yahoo connection is available too, reached through an OAuth sign-in offered inside the app. Once connected, lineup and waiver changes are staged for your confirmation before anything goes through. ESPN league connections are not available yet.
What you can do without a connected league
Rankings, start/sit, the trade analyzer, and every other free tool on gamedai.app work without a connected league at all. You describe your matchup and Scout or the tool works from what you tell it.