STON.fi has launched cross-chain swaps in its app, adding stablecoin transfers across TON, TRON, Ethereum, Base, BNB Chain, Polygon, Avalanche, Arbitrum and Robinhood Chain through a unified self-custodial interface. The feature runs on Omniston, an execution layer built by STON.fi, and the company said the fastest swaps can finish in 15 seconds.
Stablecoin transfers across nine major networks
The launch connects TON to major liquidity and application ecosystems in crypto, according to STON.fi. Users can move funds between stablecoin markets, TON-native assets, DeFi protocols and Telegram-native apps without relying on centralized exchanges, bridges or wrapped assets.
STON.fi said stablecoins have become one of the most important markets in crypto, with total market capitalization above $300 billion. TRON and Ethereum are the two largest stablecoin networks. With the new swap function, TON is now linked in both directions with major stablecoin ecosystems: TON users can reach cross-network liquidity, while TRON and EVM users get a more direct route into TON-native assets, wallets, DeFi protocols and Telegram-native applications, all within one self-custodial experience.
Omniston handles execution rather than simple routing
Omniston coordinates the full swap process between the source chain and the destination chain. STON.fi described it as more than a routing or liquidity aggregation system, saying it was designed to make cross-chain stablecoin flows predictable from pricing through settlement.
Slavik Baranov, CEO of STON.fi Dev, said: “People don’t think in blockchains — they think in terms of what they want to get done. Our goal is to make moving between ecosystems feel as simple as swapping within the same network. Omniston handles the complexity so users can focus on the outcome instead of the underlying infrastructure.”
Most swaps take 15 to 40 seconds
For users, STON.fi said the main advantages are speed and predictability. Most swaps are completed in 15 to 40 seconds, allowing users to move assets between supported chains without the longer wait times often associated with cross-chain transactions.
After a swap is confirmed, Omniston connects the order with independent liquidity providers known as resolvers, which supply the corresponding asset on the destination chain. Transactions are executed through linked hash time-locked contracts, or HTLCs. These are smart-contract escrow mechanisms deployed on two chains under the same cryptographic condition, so the two sides of the swap either settle together or do not settle at all.
Users can see the expected asset and amount before confirming the transaction. If the swap cannot be completed, funds are returned rather than getting stuck, partially executed or left in an unclear state.
STON.fi shifts from chain-specific DeFi toward user intent
STON.fi said the release marks a move from a DeFi protocol focused on a specific chain toward a product built around user intent. As stablecoin liquidity, consumer apps and DeFi markets spread across multiple networks, the company said users need a simpler way to move value without giving up self-custody or managing the infrastructure behind each transaction.
The company said the launch adds a more practical access layer between major liquidity networks, app ecosystems and the broader on-chain economy for TON and for the wider crypto market.
Product background and access
STON.fi said more information is available through its cross-chain swap interface at app.ston.fi/cross-chain.
The company described STON.fi as a cross-chain decentralized application that supports token swaps across TON, TRON and major EVM-compatible blockchains. It was initially built as a leading AMM protocol on TON and as one of the most widely used DeFi apps in that ecosystem, helping users swap assets, access DeFi opportunities and move value across chains through a simpler cross-chain experience.
Its cross-chain functionality is powered by Omniston. STON.fi also said it is backed by CoinFund, Delphi Ventures, The Open Platform, Karatage and TON Ventures, and is building infrastructure that connects users, liquidity and applications across the on-chain economy.