Connect your league

Bring your fantasy league into Rumbledore

Sleeper connect

Bring your Sleeper league into Rumbledore

Enter a public Sleeper username or user ID, choose discovered NFL leagues, and import the history you want active.

Connect once

Provider options stay open

Add ESPN or Sleeper accounts into one inventory. A second provider appends leagues instead of replacing the first.

ESPNHosted browseraddHosted ESPN login, with manual cookie fallback only when the hosted flow is unavailable.SleeperPublic accountcurrentPublic username or user ID lookup for leagues that do not need private credentials.

Onboarding path

  1. ConnectAuthorize a provider account.
  2. DiscoverLoad every league from connected providers.
  3. ImportBring teams, members, matchups, and history in.
  4. InviteSend share links or SMS from the roster surface.
  5. ClaimLeaguemates map themselves to their real teams.
Share link firstMobile readySleeper

Destination saved

Open saved link

Step 1 of 4

Connect

  1. Connect1. Current

    Authorize provider access.

  2. Discover2. Upcoming

    Find every fantasy league.

  3. Claim3. Upcoming

    Import or open your teams.

  4. Invite4. Upcoming

    Bring leaguemates in.

  1. Provider · step 1 of 3 · Complete
  2. 2Connect · step 2 of 3 · Current
  3. 3Choose league · step 3 of 3 · Upcoming

Where does your league play?

Choose your fantasy platform to get started.

  • ESPNCookie or session import; full history + live scoring.›
  • SleeperPublic username or league ID. No password needed.›

Public connect

Sleeper account

Public usernames and user IDs can discover public NFL leagues.

ready

Enter a public Sleeper username or user ID to discover leagues.

Discovery

Your leagues

Connect a provider to populate the shared import list.

Refreshing league inventory

Discovery rows are updating from connected providers.

What happens next

A quick overview of the process.

  1. 1Enter a public Sleeper username or user IDPublic usernames and user IDs can discover public NFL leagues. No password needed.
  2. 2Choose your leaguesEvery discovered NFL league is listed; pick the ones to bring into Rumbledore.
  3. 3Import the history you want activeTeams, members, matchups and past seasons come in, season by season, with the progress shown here.

League data stays separate.

Existing leagues are joined by invitation.

Already have an invitation? Join a league