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@OffbookWin on X (opens in a new tab)Launch app

NEARThe privacy layer for Polymarket. Built on NEAR.

Polymarket, off the books.

Bet on Polymarket from any chain. Your bets can't be traced back to you.

Launch app Try the demo

Positions stay public. Who owns them doesn’t. What’s private and what isn’t

Public trade feed
Illustrative
Trade · size · walletOwner

  • Rate cut at the March meeting?

    YES 41¢$48,2000x7a3f…c91e

    @macro_whaletracked · copied

  • Northgate FC to win the league?

    NO 63¢$12,5000x2c90…7e14

    fresh wallet

  • Film "Lantern" wins Best Picture?

    YES 22¢$3,4000xb81e…09aa

    sharpmoney.ethtracked · copied

  • Rate cut at the March meeting?

    NO 59¢$25,0000x91d4…4f02

    fresh wallet

  • Senate bill passes by June?

    YES 34¢$1,0000x5e27…d1c3

    fresh wallet
Every trade stays on the public order book. Trades placed through Offbook come from fresh wallets whose owner can’t be looked up. Fictional markets and wallets.

Copy traders can't copy what they can't see.

Your edge stays yours.

Whales welcome. Trackers aren't.

The problem

Every Polymarket bet is public.

Polymarket settles on-chain, so every trade is tied to a wallet anyone can look up. Trackers rank the biggest accounts, alert bots post their trades within seconds, and copy traders pile in behind them.

MW

0x7a3f…c91e

Tracked since 2025 · 2,140 followers

Fictional example
  1. +0:00

    Buys 58,000 YES at 41¢ in "Rate cut at the March meeting?"

  2. +0:04

    Whale-alert bot posts the trade with a link to the wallet

  3. +0:40

    212 copy traders follow into the same outcome

  4. +3:00

    Price moves from 41¢ to 47¢ before the position is finished

Their average entry got worse because everyone could see them buying.

The same bet through Offbook

Offbook
Wallet
0x2c90…7e14
History
None. Brand new.
Funded
Privately, in standard amounts
Owner

The trade is still public. There's just no one behind it to follow.

How it works

Four steps. One fresh wallet per bet.

You bet like you always do. Offbook handles the wallets, the funding and the timing.

  1. 01

    Fund privately from any chain

    Deposit USDC, USDT or native coins from 30+ chains into your own private balance on NEAR Confidential Intents.

  2. 02

    Pick a market

    Browse live Polymarket markets with real-time odds, charts and order books.

  3. 03

    Offbook places your bet from a fresh wallet

    A brand-new Polygon wallet is funded from your private balance in standard amounts, never your exact bet size. Then your order goes to Polymarket’s order book: as soon as the funding lands, or after a randomized wait at the higher privacy levels.

  4. 04

    Winnings come back privately

    When you sell, or a market resolves, the proceeds return to your private balance on a staggered, randomized schedule.

The full walkthrough

Honest privacy

What’s private. What’s public.

Offbook makes your bets unlinkable, not invisible. Here is exactly what anyone can see.

  • The bet itselfPublic
    Market, outcome, size and price are on Polymarket’s public order book and on-chain, like every other trade.
  • The betting wallet’s addressPublic
    Anyone can see it. It’s a fresh Polygon wallet with no history and no link to you.
  • That the wallet belongs to youPrivate
    Wallets are derived from a secret only you hold, and funded from your private balance with shaped timing and amounts.
  • That the bet went through OffbookVisible as Offbook
    Polymarket records Offbook’s builder code on every fill, so a bet can be recognized as an Offbook bet. Not whose it is.
  • Your deposit into OffbookPublic
    Visible on the chain you send it from, like any transfer.
  • Your private balancePrivate
    Held in your own NEAR Confidential Intents account. Moves inside it are shielded.
  • Your withdrawal to another chainPublic
    The arrival is visible on the destination chain.
  • Your activity historyPrivate
    Fetched live for your session and never stored on Offbook’s servers.

The privacy engine

Privacy you can read before you confirm.

Every bet ticket shows an unlinkability score and the reasons behind it. The engine funds fresh wallets in standard amounts, never your exact bet size, and at the higher privacy levels waits a randomized time before placing the order, so the funding is harder to match to the bet.

  • Private, Very private or Max private. Private, the default, places your order as soon as the funding lands. The higher levels add a randomized wait.
  • Prepared wallets. Fund wallets ahead of time at random moments, and later bets are both faster and more private.
  • Live conditions. The score reflects how many similar withdrawals are happening on Polygon right now.

Bet ticket · privacy level

$480.00 · YES

Funded in 1 chunk from a fresh wallet, placed as soon as the funding lands.

UnlinkabilityMedium62/100
  • The order goes out as soon as the funding lands, so the two are easier to match by timing
  • Funded in standard amounts (500), never your exact bet size
  • 1,800 withdrawals to Polygon in the last 24h to blend with
  • A fresh wallet with no history
  • Crowd sizes are estimates until live withdrawal data is available

A prepared wallet, funded hours before the bet, would reach High. Prepare some in Wallets.

With no wait, the funding and the order are easier to match by timing. Very private and Max private add a randomized wait.

Illustrative example, scored with an assumed crowd. Your ticket uses live data.

Built on NEAR

Three pieces of NEAR, in plain words.

Offbook is built from NEAR primitives that already secure real value. Your private balance moves only with your wallet’s signature, and betting wallets can only trade, redeem and return funds to you.

Your private balance

Confidential Intents

Deposits and withdrawals are visible on their own chains, but what happens between them isn’t. NEAR’s confidential layer is run by an approved set of validators.

Fresh wallets on demand

Chain Signatures

Each betting wallet is a Polygon address controlled through NEAR’s multi-party signing network, from a path only you can compute. No single machine ever holds the key.

Code you can check

Shade Agents

Offbook’s agent runs in secure hardware and proves which code it runs. The vault contract only accepts approved code, and only signs trades, redemptions and returns to you.

Fees

Simple, itemized, shown before you confirm.

Polymarket fee

Per market

Polymarket’s own taker fee. Some markets are fee-free.

Offbook builder fee

0.5%

On matched orders, added on top of Polymarket’s fee.

Private funding fee

0.25%

When a betting wallet is funded from your private balance.

Network costs

At cost

Shown in every quote. Offbook adds nothing on top.

Offbook’s rates are provisional until launch.

FAQ

Questions, answered plainly.

Ready when you are

Copy traders can't copy what they can't see.

Launch app Try the demo