For the complete documentation index, see llms.txt. Markdown variants of the ranked boards (dynasty and fantasy rankings for NFL, NBA, MLB and CFB) and dated snapshots of the NBA, NFL, MLB and college player-prop boards are available by appending.mdto those URLs or by sendingAccept: text/markdown; other pages answer 404.
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Sleeper, ESPN, Yahoo and Fantrax.
Yes. A free account includes one imported league, and Pro and Ultra import more.
Each league's record, place and roster value side by side, with live trade values, trade targets, roster analysis and team grades.
No. Imported leagues re-sync on a schedule, so rosters, standings and moves stay current without importing again.