Every player gets a projection with a floor and a ceiling. The Seer explains every call in plain English. Run your league here, or bring the one you already play.
Six run as draft leagues with weekly matchups. Six run as salary-cap games you can play in five minutes. All twelve use the same projections and the same Seer.
Real screens from a live league, not mock-ups. Every one comes in Day and Night; the app follows your phone unless you tell it otherwise.
A component model: team volume × player share × efficiency, scored under your league's rules. No language model ever guesses a stat line.
It reasons only over what the model produced, in plain English, and every answer says which model it came from.
Projections are scored against what actually happened, and the results go up on the accuracy page.
Sync an ESPN or Sleeper league, or your Fantasy Premier League squad. It stays read-only: you get our projections, matchup previews and the Seer's advice, and keep playing where you are.
Projections, analytics, matchups, injuries and waivers over REST at api.fantasyxai.io/v1. The reasoning tools (draft, compare, roster advice, trades) as MCP tools at mcp.fantasyxai.io, usable directly inside Claude and ChatGPT.
# one call, one player, this week curl -H "Authorization: Bearer gk_…" \ https://api.fantasyxai.io/v1/matchups/player?player=bijan-robinson { "player": "Bijan Robinson", "week": 1, "proj": 19.4, "floor": 11.2, "ceiling": 27.8, "matchup_score": 7.9, "stats": { "carries": 17.2, "targets": 5.1, "rec_yds": 38 }, "model_meta": { "model": "herd-v2", "scoring": "ppr" } }
Mean absolute error by position, PPR, on the 2025 season with the model trained on 2022–24 only. Since Week 1 we post the same numbers every Tuesday, scored on the projections we actually served.
Every plan is custom to your exact league settings. Try the Seer free, no card required. Cancel anytime.
| What you get | Free | Plus | Pro |
|---|---|---|---|
| Leagues: hosted here, or synced from ESPN, Sleeper or FPL | 1 league | 1 league | Unlimited |
| Rest-of-season rankings and tiers | ✓ | ✓ | ✓ |
| Player and team analytics | ✓ | ✓ | ✓ |
| Weekly projections, floor and ceiling, matchup score | — | ✓ | ✓ |
| Start/sit, waivers with FAAB, trade analyzer, IR manager | — | ✓ | ✓ |
| The Seer | 5 questions | Unlimited | Unlimited |
| Alerts: inactives, depth-chart and injury news | — | ✓ | Priority |
| Sports beyond football | — | Football only | All twelve |
Launch pricing. Season prices rise after Week 4; a season pass bought now stays at the price you paid. Not affiliated with any sportsbook and we don't take their money — the price on the page is the price.
No. Fantasy × AI never recommends a wager, never shows odds or props, and never links to a sportsbook. Betting lines appear only as neutral inputs to the projection model, the same way snap counts do.
Twelve. Draft leagues for the NFL, NBA, MLB, NHL, Premier League and Champions League. Salary-cap games for the PGA TOUR, NASCAR Cup, Formula 1, IndyCar, UFC and tennis. One account covers all of them.
No. Create a league, send the invite link, and any seat nobody takes is played by a bot that drafts and sets a lineup. You can also practice any time in the mock draft lobby.
ESPN, Sleeper and Fantasy Premier League today. A synced league is read-only: you see our projections, matchup previews and the Seer's advice, and make your moves where the league lives.
Consensus averages opinions. The Herd builds a stat line (carries, targets, yards, touchdowns) for every player from usage and matchup data, then scores it under your rules. When it disagrees with consensus, the Seer tells you why, and every week we publish who was right.
Yes. It installs from the browser on iPhone and Android, sends push alerts, and comes in Day and Night. Open fantasyxai.ai/app on your phone and add it to your home screen.
Yes, from your account page. Monthly plans stop at the end of the month you paid for. Season passes cover the whole season including playoffs.
More answers on the full FAQ.
Create it, send one link to your friends, and draft tonight. Bots hold the seats nobody takes.