Sideline: Assistant GM

Sideline is the fantasy football command center for managers who want clearer decisions, not more noise. Connect your MyFantasyLeague or Sleeper leagues and run your season from one place: roster, matchups, league standings, and week-by-week history. WHAT YOU CAN DO • Team cockpit — starters, bench, IR, and taxi with projections, salaries/contracts when your league uses them, injuries, and game status • League view — standings, scoreboard, and transactions so you see the field, not just your bench • Week controls — jump historic and future weeks to review what happened or plan ahead • AI agents — lineup, waiver, trade, and draft desks that propose moves you approve before anything changes • Follow-up chat — dig into a proposal with live roster, free-agent, and research tools • Player profiles — bio, franchise salary/contract, rankings, notes, and betting props in one sheet • Props — roster-only player prop lines for the week you’re viewing • Live Activities — lock-screen / Dynamic Island matchup scores while games are live • Week summaries — AI write-ups for your team or league after historic weeks EXTERNAL DATA SIDELINE USES • MFL & Sleeper — your official roster, scores, matchups, injuries, and league rules from the host • FantasyPros (optional API key) — expert consensus rankings, weekly projections, and player news/notes • The Odds API (optional API key) — NFL player props (yards, receptions, anytime TDs, and more) for your roster’s games • Your chosen LLM (optional API key) — powers agents and week summaries with the model you configure Bring your own FantasyPros, Odds API, and model keys in Settings when you want that layer of intel. Host league data works with your connected MFL or Sleeper account either way. Sideline doesn’t auto-submit moves. Agents recommend; you approve. Built for managers who treat fantasy like a front office.