Connect your league to see your team graded in every category your league counts, tonight's best lineup, your games this week and streamers for your open slots. Read-only, no password, free.
Your Sleeper username is all we need.
The league ID is the number after leagueId= in your ESPN league URL.
Private ESPN leagues need two cookies from a browser where you are signed in to ESPN: espn_s2 and SWID. They are encrypted before storage, only used to read your league, and never shown again.