TLDR
- StarkWare launches OffMarket, allowing Polymarket users to trade without publicly linking positions to their main wallets.
- OffMarket uses Starknet’s privacy technology to separate traders’ identities from their on-chain trading activity.
- Traders can access Polymarket’s existing liquidity, order books, and prices without creating separate Polymarket accounts.
- OffMarket keeps individual trades visible on Polygon while concealing connections to users’ primary wallets.
- StarkWare opens OffMarket to the public after months of testing, expanding access to private prediction market trading.
StarkWare opened OffMarket to the public on October 14, allowing traders to use Polymarket without linking positions to their main blockchain accounts. The service adds a privacy layer while keeping Polymarket’s markets and prices unchanged.
The launch follows limited access that began in August. OffMarket operates independently of Polymarket and does not require users to open a Polymarket account.
StarkWare Uses Starknet to Separate Wallets
OffMarket uses Starknet’s privacy pool and zero-knowledge proofs to conceal how deposited funds connect to trading wallets. Users sign in with Google or a crypto wallet, then deposit USDC through Polygon.
The service creates a separate wallet for each position. Users control their keys through their browsers and can recover those wallets using their signatures. StarkWare said deposits currently carry a $1,000 USDC limit per account. Funds remain in an open-source pool instead of an account controlled by OffMarket.
Trades Still Use Polymarket Liquidity
OffMarket sends orders to Polymarket’s existing order books. Traders deal with the same buyers and sellers at the same prices, rather than joining a separate market with fewer orders. A company spokesperson said private orders take about one minute to execute.
The release comes as Polymarket faces questions about a possible token or public listing. Neither proposal forms part of OffMarket’s trading service. StarkWare’s product belongs to Polymarket’s verified builder program, but the companies have no formal partnership.
Privacy Does Not Hide Every Transaction
Trades remain visible on Polygon, including their size, timing, and associated wallet addresses. OffMarket conceals the link to a user’s original account, not the underlying activity. Observers may still identify traders from distinctive transactions.
Separately, US authorities are debating new rules for prediction market contracts. OffMarket’s privacy design does not remove the records that Polymarket maintains. The platform’s normal trading fees also apply to private orders.
Access Restrictions and Compliance Remain
StarkWare says the shared Starknet privacy pool holds about $1.5 million across 17,000 deposits. A compliance company holds a viewing key for sanctions checks and properly authorized information requests.
OffMarket follows Polymarket’s geographic restrictions, excluding users in the United States. The limits remain in place amid a court dispute over prediction market oversight.
StarkWare has not released public trading volume figures for OffMarket’s early trial. The company says it may revise deposit limits as activity changes. The launch makes the service available beyond its earlier invitation stages. Withdrawals usually take several minutes, the spokesperson said.
