Fleaflicker is a favorite for deep, stat-heavy leagues, and it's one of the easiest platforms to link to Roster Locker: you give it the email on your Fleaflicker account, and it finds every league that account plays in. No password, no login link — Fleaflicker's public API does the lookup, and it even tells us which team is yours. Here's the whole flow.
On this platform: see what Roster Locker does for your Fleaflicker leagues.
What you'll need
- The email address on your Fleaflicker account — the one you signed up with.
- That's it. No password and no permissions to grant.
Fleaflicker serves NFL and MLB, so this guide covers both.
Why an email — and why that's safe
Fleaflicker publishes a public, read-only API that can list the leagues tied to an account email and the team you own in each. Roster Locker uses your email for exactly that lookup and nothing else — we don't email you marketing off the back of it, and we can't log in, set lineups, or make moves, because we never hold your Fleaflicker password. Not storing platform passwords is a hard rule across every platform we support, and our privacy policy is explicit that we never sell or share your data.
Step by step
- Pick your sports. When you create your Roster Locker account, the first
step asks which sports you play. Fleaflicker can serve NFL and MLB — pick either or both.
- Find the Fleaflicker step. The connect flow queues one step per platform.
The Fleaflicker step is titled "Enter your Fleaflicker email" and notes that we look up your leagues through their public API.
- Type your account email and hit "Find My Leagues." Enter the email your
Fleaflicker account uses. If you picked both NFL and MLB, you'll confirm the email for each sport.
- Every league imports at once. Roster Locker pulls in all of that
account's leagues for the sport — and because Fleaflicker's API includes the team you own, your team is set automatically. There's no "which team is yours?" step to do.
- Choose your active league. On the league step your leagues are grouped by
sport; pick the one you want the AI focused on first. You can switch anytime from the league chip at the top of the dashboard.
From there the AI already knows your real roster and league settings, so trade grades, waiver targets, and start/sit calls are grounded in your actual team.
Troubleshooting
- "No Fleaflicker leagues found for that email." Double-check you entered the
exact email your Fleaflicker account uses — a typo or a different address you sometimes log in with will come back empty. Make sure you also picked the right sport: a lookup for MLB won't return your football leagues.
- A league is missing. Roster Locker only imports leagues for the sports you
selected. If an NFL league didn't appear, confirm NFL was one of your picked sports and re-run the lookup.
- Wrong team marked as mine. Fleaflicker reports the team owned by that
account, so this is rare — if it happens, it usually means two accounts share a league. Reach out (just reply to any Roster Locker email) and we'll sort it.
- Latest moves missing. Leagues re-sync on a schedule; you can pull the
newest rosters immediately with the refresh icon on the Team tab.
Play on more than one platform?
One Roster Locker membership covers every sport and platform you play. Sleeper connects with just a username; ESPN and MyFantasyLeague by league URL; Fantrax by its Secret ID; and Fantasy Premier League by team ID. Guides for each are on the blog — and inside the app, every connect step has a "Need help finding this?" link that walks you through it.
One AI for every fantasy league you own.
Roster Locker covers 6 sports and 7 platforms — trade grades, start/sit calls, waiver targets and live draft help, grounded in your actual rosters and scoring settings. Founder pricing locked for life.
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