Ex-Revolut team's perp DEX Extended goes live on Starknet mainnet

Fast-growing decentralized perpetual exchange Extended (formerly X10) went live on the Starknet mainnet on Tuesday, providing a new option for onchain derivatives trading akin to Hyperliquid.

Extended is led by former Revolut Head of Crypto Operations Ruslan Fakhrutdinov and raised $6.5 million last year from Tioga Capital, Semantic Ventures, Prelude, StarkWare, Cyber Fund, Revolut executives, and Lido co-founder Konstantin Lomashuk, The Block previously reported.

Starknet users can trade Extended perps directly from any EVM or Starknet wallet. The platform is launching with more than 50 markets across crypto and TradFi — including EUR/USD, gold, S&P 500, and oil — with up to 100x leverage.

In a statement shared with The Block, Fakhrutdinov said Extended aims to merge institutional-grade derivatives with DeFi's openness, with Starknet ensuring a seamless experience for EVM wallet users.

Previously operating on StarkEx, StarkWare's scaling engine, Extended claims to have generated average daily trading volumes of $319 million, with open interest above $55 million, and a 55% repeat depositor rate — delivering around 70% APR over the past 30 days.

"DeFi built by a team that helped create such a fintech success story as Revolut shows how far this space has come," StarkWare CEO and co-founder Eli Ben-Sasson said. "Their decision to move to Starknet demonstrates the power of our network — the scalability, composability, and user experience that can attract world-class teams to build here."

The migration of Extended to Starknet is being carried out in three stages, starting Aug. 12. For the first two weeks, both StarkEx and Starknet versions will operate, with StarkEx vault deposits closed. This will be followed by the StarkEx version entering reduce-only mode, and then shutting down completely, the team said.

However, Extended’s perps DEX is not accessible to U.S. users.