STON.fi, the leading automated market maker (AMM) protocol on The Open Network (TON), has announced the integration of TON-native wrapped versions of Bitcoin (BTC) and Ethereum (ETH). This development brings the two largest cryptocurrencies into the TON DeFi ecosystem in a fully non-custodial format, allowing users to swap and provide liquidity while retaining full control of their funds.
The integration represents Bitcoin as cbBTC, a token issued by Coinbase and fully collateralized 1:1 with BTC. Ethereum is represented as wrapped ETH (WETH), also backed 1:1 by the underlying asset. Both are managed via smart contracts, enabling their use across decentralized applications on TON without direct interaction with their native blockchains.
Through STON.fi, users can now deploy WETH and cbBTC within TON DeFi, including swapping and providing liquidity via dedicated WETH/USDt and cbBTC/USDt pools. Furthermore, Omniston, STON.fi's liquidity aggregation protocol, facilitates swaps to WETH and cbBTC from any TON-native token, routing liquidity across the ecosystem. This enables hundreds of TON-based dApps integrated with Omniston to instantly access liquidity for these major assets, expanding the range of available DeFi strategies.
"Bringing BTC and ETH into TON DeFi is about expanding real utility, not just asset coverage," said Slavik Baranov, CEO of STON.fi Dev. "This launch enables users to actively use Bitcoin and Ethereum inside the TON ecosystem rather than holding them passively. By making these assets usable in TON-native DeFi, we're strengthening the overall depth of the ecosystem."
The move aligns with TON's development as a blockchain deeply integrated with Telegram, a messenger used by hundreds of millions daily. It provides users access to core crypto assets directly within Telegram-native and TON-based applications through decentralized infrastructure.
STON.fi reports over $6.8 billion in total trading volume and more than 31 million operations, dominating the TON DeFi landscape in liquidity, token coverage, and user activity. The protocol is backed by investors including CoinFund, Delphi Ventures, The Open Platform, Karatage, and TON Ventures.
