How Tradyr Works

From "paste league ID" to "send a trade" in under a minute. No signup, no payment, no data leaving your control.

Tradyr is built for speed. You don't need an account. You don't need to upload anything. You give us a league ID, we pull the public roster data from your fantasy platform, layer our value engine on top, and surface the trades + needs in seconds.

Six-step walkthrough

Step 1. Pick your fantasy platform

Visit tradyr.app and click your platform (Sleeper, MFL, ESPN, Yahoo, or Fleaflicker). Each platform has a tailored subdomain with platform-specific features.

Step 2. Enter your league ID or username

Sleeper users can paste their league ID OR look up by Sleeper username and pick from their leagues. MFL/Fleaflicker take a league ID. ESPN and Yahoo redirect you through a one-time OAuth flow (no password sharing).

Step 3. Review your league's positional needs

Tradyr instantly scores every team in your league by total starter TV per position. Yours and every other team are labelled NEED (bottom third), NEUTRAL, or SURPLUS (top third) at QB / RB / WR / TE.

Step 4. Find trade partners with opposite needs

Open the Trade Center or click into a team page. Tradyr suggests partners whose surplus matches your need (and vice versa) and pre-fills trade ideas you can swipe through.

Step 5. Stress-test the deal in the Trade Calculator

Add players + picks to each side. Toggle the Roster Spot Premium for multi-piece trades. The composite delta plus fairness label tells you whether the trade is even, a win, or an overpay.

Step 6. Send the offer in your platform

When you're happy, copy the player list and send the offer in Sleeper / MFL / ESPN / Yahoo. The Trade Calculator share link is mobile-friendly so you can paste it in your league chat for discussion.

What you'll see

League dashboard: every team ranked by total roster value, with grade (A+ to D), win-window archetype, and positional need/surplus chips.
Per-team page: full roster with TV per player, ranked starters, bench depth, and a "best trade partners" panel.
Trade Center: swipe through pre-built trade ideas matched to your roster gaps. One tap to refine or send.
Trade Calculator: stress-test any custom trade with full draft-pick valuation and the roster-spot premium toggle.
Cross-League Intel: if you're in multiple Sleeper leagues, see player ownership and trade affinity across all of them.

Privacy

Tradyr only reads public league data via your platform's public API. We don't require your password (ever). For ESPN and Yahoo we use OAuth, which is a one-time browser handoff to those platforms' own login pages — Tradyr never sees your credentials.

Try it now → FAQ