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Dynasty Seer
Owner scouting for Sleeper dynasty leagues

See how your league-mates trade before you send the offer

Dynasty Seer builds a scouting report on every owner in your Sleeper dynasty league: who they trade with, what they pay for, how they draft and how they bid. It reads your league’s full history on Sleeper, so the report is about the people you actually negotiate with.

Scout the demo league Start the 7-day free trial

A free account and your Sleeper username are all it takes. Dynasty Seer never asks for your Sleeper password and cannot make moves in your league.

A trade calculator tells you what a player is worth. It can’t tell you what your league-mate will say yes to.

Every league has the owner who never sells a rookie pick, the one who overpays for running backs every October, and the one who hasn’t accepted a trade in two years. You know some of this from memory. The rest is buried in seasons of transactions that nobody scrolls back through.

Owner scouting does the scrolling for you and turns it into a report you can read in a minute.

The report

What’s in every owner report

Trade record
Every trade the owner has made in your league, priced on the day it happened and again at today’s values, so you can see who came out ahead.
Trade habits
How often they trade and who with, whether they start trades or wait for offers, how fast they accept, and the positions they keep buying or selling.
Draft habits
The positions they draft early, whether they keep or flip the rookies they draft, and whether they buy or sell picks and when in the year.
Waivers and FAAB
How much budget they have left, how they bid (round numbers, overbids, when they run dry) and how fast they cut a pickup.
Lineup discipline
How closely they manage: lineup changes, starting players with no game, and whether their lineups slip once a season is lost.
Record and playoffs
Lifetime record, titles and playoff results by season, and how lucky that record is against the points they scored.
How to beat them in a deal
The reads turned into steps: what to lead with, what to ask for, whether to send the first offer and when they are usually on Sleeper.

Every read carries a confidence label and the numbers behind it. An early signal is just past the minimum sample, solid is twice it and strong is three times it. A read that our tests found doesn’t last from season to season says so.

A sample

What a report looks like

One owner’s scouting card from the demo league. The full report behind it lists every read with its numbers.

HandcuffHero

Pick Hoarders · 5 seasons · 41–24 lifetime · 24 trades

  • Lately: Win-now
  • Waiver hawk
  • Champion 2024

How they play

  • Keeps buying WRs
  • Aging core
  • Sells veterans dear
  • Usually comes out 20% ahead

How to beat them in a deal

  1. 1Lead with players who start now
  2. 2Ask for picks or young players

HandcuffHero runs Pick Hoarders: five seasons, a 41–24 record, the 2024 title and 24 trades. Lately a win-now team that keeps buying wide receivers, with an aging core. They sell veterans dear and usually come out about 20% ahead, so lead with players who start now and ask for picks or young players back.

A real owner in the demo league, with a made-up name, as the card read on November 10, 2026.

The scouting card of HandcuffHero in the demo league as a share image: 5 seasons · 41–24 lifetime · 24 trades; Keeps buying WRs, Aging core, Sells veterans dear, Usually comes out 20% ahead
From report to offer

Then it writes the offer

Trade Ideas uses the same owner histories. It reads every roster, your league’s settings and how each owner trades, then drafts offers the other side has a reason to accept, each with a message you can paste into Sleeper. You still make the call.

How Trade Ideas works

How it works

Set up in under a minute

  1. 1Make a free account and link your Sleeper username. Never your Sleeper password.
  2. 2Pick your league. Dynasty Seer reads its public history for every season it has been on Sleeper, up to seven.
  3. 3Open any owner to see their report.
Pricing

Pricing

Every owner’s scouting report is part of Pro, at $9.99 a month or $79 a year, with a 7-day free trial. Checkout asks for a card; nothing is charged during the trial, and cancelling before it ends costs nothing.

The Free plan covers one league. Free shows your own report, one other owner’s and the top of the Pitch board.

You can read every owner’s full report in the demo league without an account.

See both plans · Compare with other dynasty tools

FAQ

Questions

Is there a tool that shows how my Sleeper league-mates trade?

Yes. Dynasty Seer’s owner scouting builds a report for each owner in your Sleeper league from the league’s own trade, draft and waiver history.

Where does the data come from?

From your league’s public history on Sleeper, for every season the league has been there (up to seven). Player and pick values come from Dynasty Dealer, which prices them from real Sleeper trades.

Do I need to give you my Sleeper password?

No. Your Sleeper username is enough. Dynasty Seer only reads public league data and cannot set lineups or send trades.

How much history does a report need?

Reports work from the first season, and each read shows how much history it is based on. Leagues with several seasons on Sleeper get the sharpest profiles.

Can my league-mates see that I looked them up?

No. Nothing is shown or sent to the other owners. A report is read from league history that is already public on Sleeper, and Dynasty Seer never posts or messages in your league.

Is owner scouting free?

Partly. Free shows your own report, one other owner’s and the top of the Pitch board. Pro opens every owner’s report, and the demo league shows them all without an account.

Does it work for redraft or keeper leagues?

Sleeper redraft, keeper and guillotine leagues are supported, in 1QB or superflex. Dynasty leagues get the most from owner scouting because they have the longest trade history.

Which platforms are supported?

Sleeper only for now. ESPN, MFL and Yahoo are not supported yet.

How is this different from a trade calculator?

A calculator prices the players. Owner scouting profiles the person on the other side of the deal. Dynasty Seer includes both.

The Owners help article · How owners really trade: the research behind the reads

Owner scouting

Know every owner before you make an offer

Dynasty Seer is not affiliated with Sleeper.

Scout the demo league Start the 7-day free trial

Values by Dynasty Dealer · League data from Sleeper · Not affiliated with Sleeper