Fantasy advice built for your league.
Spy on your league. Build a better roster.
Connect your fantasy league and get personalized waiver, trade, lineup, and roster recommendations based on the players actually available to you.
No more generic rankings that recommend players already owned in your league.
RosterSpy reads your actual league — rosters, scoring, standings — and only ever recommends players confirmed to be available. Advice that actually applies to you.
Your league's command center
Connect once. RosterSpy imports your rosters, scoring, and standings, then layers projections and injuries on top to give recommendations grounded in your reality.
Waiver recommendations
Only players confirmed available in your league, ranked by add score, with a recommended drop and projected roster impact.
Trade analysis
Evaluate any trade by value, positional fit, and roster impact — not just raw rankings. Find realistic deals across the league.
Start / sit decisions
Compare projected points, floor, ceiling, matchup, and usage to get a confident pick with the reasoning behind it.
Roster weaknesses
A clear map of where your team is strong and where it needs help, by position and depth.
League-wide analysis
Power rankings, a weakness map for every team, and the best trade partners to target by position.
AI fantasy GM
Ask anything. RosterSpy GM answers using only your league's structured data — never invented facts.
Stop guessing. Start managing with data.
Connect your Sleeper league in seconds and get your first analysis free.
Connect Your LeaguePersonalized league analysis requires connecting a league. Public pages are coming for search.