STON.fi has introduced a cross-chain exchange function that connects The Open Network, known as TON, directly with TRON, Ethereum and several other major blockchain ecosystems, giving users a way to move stablecoins between networks through a single self-custody interface.
The launch is designed to reduce reliance on centralized exchanges, traditional cross-chain bridges and wrapped tokens, three tools that have long shaped how digital dollars move across blockchains. Instead of depositing assets with an intermediary or locking tokens in a bridge contract to receive a synthetic version elsewhere, users can now execute direct cross-chain exchanges between supported networks while keeping control of their funds until the transaction is completed.
The feature currently supports TON, TRON, Ethereum, Base, BNB Chain, Polygon, Avalanche, Arbitrum and Robinhood Chain. According to the platform’s technical documentation, most exchange transactions are completed within 15 to 40 seconds. Users are also shown expected transaction outcomes before confirming an order, including the target asset and the amount expected on the destination network.
The rollout marks a significant expansion for STON.fi, which began as a decentralized finance protocol built around TON. With cross-chain exchange now live, the platform is positioning itself less as a single-chain trading venue and more as a gateway between TON-native assets and wider stablecoin liquidity across the cryptocurrency market.
The move comes as stablecoins continue to play a central role in digital asset activity. As of April 2026, the supply of price-stable digital money was cited at $318.6 billion. TRON and Ethereum remain the largest networks for stablecoin circulation, making direct connectivity with those ecosystems important for TON-based decentralized applications, Telegram-linked tools and traders who already hold liquidity on Ethereum-compatible chains.
What the new function does
The new cross-chain exchange feature allows users to move stablecoins and other supported assets between TON and external networks without first passing through a centralized trading platform. In practical terms, a user holding assets on Ethereum, TRON or another supported chain can exchange them into TON-native assets, or move value in the opposite direction, from TON into broader stablecoin markets.
That is an important shift for users of TON-based applications. TON has gained attention because of its close relationship with Telegram-based services and consumer-facing crypto tools. However, liquidity has often remained fragmented across networks. A user may hold stablecoins on TRON because transfers are common and low-cost, while another may keep assets on Ethereum because of its deep decentralized finance ecosystem. Moving value between those networks has usually required multiple steps.
STON.fi’s new function aims to compress that process into a single transaction flow. The user selects the source network, the destination network, the asset to exchange and the expected output. The system then handles the routing and settlement in the background.
The service avoids wrapped tokens, which are synthetic assets issued on one blockchain to represent tokens held elsewhere. While wrapped assets can be useful, they also introduce additional trust assumptions and technical risk. If the custodian, bridge or locking mechanism fails, the wrapped token may lose its backing or become difficult to redeem. STON.fi says its model relies instead on direct exchange execution coordinated across networks.
How Omniston manages transfers
At the center of the new system is STON.fi’s execution layer, called Omniston. It coordinates cross-chain transfers between the source and target networks and is responsible for making sure each side of a transaction is completed under preset conditions.
Omniston is built around hash time lock contract mechanisms, commonly known as HTLCs. These contracts are designed to make cross-chain transactions conditional. Either both sides of the transaction complete as expected, or the process unwinds and assets are returned.
In a typical cross-chain transfer, the core risk is that one side settles while the other does not. For example, a user could send assets on one blockchain but fail to receive the corresponding assets on another because of a routing error, liquidity issue, network delay or malicious action. HTLC-based systems are intended to reduce that risk by synchronizing settlement through cryptographic conditions and time limits.
Under STON.fi’s structure, once a user creates an order, independent liquidity providers known as resolvers can match it. These resolvers handle the delivery of the destination assets under the conditions set by the protocol. If the required conditions are not met within the defined time frame, the transaction can be reversed and the original assets returned.
Baranov, STON.fi’s chief executive, said the design is intended to hide the complexity of routing and settlement from the user. The goal, he said, is to make movement between ecosystems feel almost as simple as a transaction within one blockchain, even though several technical steps are taking place behind the scenes.
That user experience is central to the product’s broader ambition. Cross-chain tools have often been difficult for non-technical users, requiring manual bridge selection, network switching, token wrapping and careful tracking of destination addresses. A single interface that abstracts those steps could make decentralized finance more accessible, particularly for users entering TON through Telegram-linked products.
Why stablecoins are central to the launch
Stablecoins are the main focus because they are the most common medium of exchange in cryptocurrency markets. Traders use them to move in and out of volatile assets, send value across borders, settle payments and access decentralized finance applications without relying on bank transfers for every transaction.
The spread of stablecoins has also created a fragmented liquidity map. TRON has become one of the largest networks for stablecoin transfers, especially for users who prioritize speed and lower transaction costs. Ethereum remains a deep liquidity hub because of its mature decentralized finance infrastructure and the large number of applications built on top of it. Layer-2 networks and EVM-compatible chains such as Base, BNB Chain, Polygon, Avalanche and Arbitrum have added more venues for stablecoin activity.
TON, meanwhile, has been developing its own ecosystem of applications and payment tools. Its connection with Telegram gives it access to a large consumer environment. Telegram has reported more than 900 million monthly active users globally, creating a potential distribution channel for crypto-based applications that can work inside or alongside messaging workflows.
For TON, access to external stablecoin liquidity is important. A network can have strong user growth and active applications, but without easy movement of value from other ecosystems, adoption can remain limited. By opening direct paths to TRON, Ethereum and other chains, STON.fi is trying to lower that barrier.
The connection also works in the other direction. Traders and users on EVM-compatible networks can now reach TON-based applications more directly. This could support activity in TON decentralized exchanges, payment products, gaming applications, mini-apps and other services built for Telegram-linked environments.
A challenge to older bridge models
Cross-chain bridges have been one of the most important pieces of crypto infrastructure, but also one of the most heavily scrutinized. Many bridges operate by locking assets on one chain and issuing a corresponding token on another. That design can concentrate risk in smart contracts, custodial vaults or validator systems that must be trusted to maintain the asset backing.
The new STON.fi function is being presented as an alternative to that model. Rather than locking digital dollars in a storage contract and minting a wrapped version, the platform routes an exchange between assets held on separate networks. If the transaction cannot be completed as agreed, the structure is designed to return funds rather than leave users exposed to a partial settlement.
That does not remove all risk. Cross-chain activity still depends on smart contract security, resolver reliability, sufficient liquidity, correct pricing and the stability of the networks involved. Transaction speed can also vary during periods of congestion, especially on heavily used chains. But the model changes the trust profile by reducing dependence on wrapped representations and bridge vaults.
For traders, the key operational questions are likely to be practical. They will look at whether transfers consistently settle inside the stated 15-to-40-second window, whether quoted outputs match delivered amounts, how much slippage appears during larger transactions and how the system behaves when network traffic rises sharply.
Those questions matter because cross-chain routing is not only about speed. It is also about finality, cost and predictability. A transfer that appears fast but delivers less than expected may not be attractive for active users. A transfer with low slippage but unpredictable completion times may be unsuitable for payment use. The strength of the system will depend on how it performs across normal and stressed market conditions.
STON.fi’s broader role in the TON ecosystem
STON.fi is a TON-based decentralized exchange and automated market-making protocol. It has reported more than $7.6 billion in total trading volume since launch. Its backers include CoinFund, Delphi Ventures, The Open Platform, Karatage and TON Ventures.
The platform’s original role was to provide liquidity and trading infrastructure inside TON. Automated market makers allow users to swap tokens without relying on a centralized order book. Liquidity providers supply assets to pools, and prices are determined by smart contract formulas or routing systems.
The new cross-chain function expands that role. Instead of serving only users already inside TON, STON.fi can now act as an entry and exit point for value moving across multiple blockchain environments. That could make it more important infrastructure for applications that need access to stablecoins, external liquidity or users from other chains.
The supported network list also reflects where much of current crypto activity takes place. Ethereum remains the base layer for many decentralized finance applications. Base and Arbitrum are major Ethereum scaling networks. Polygon and Avalanche have large application ecosystems. BNB Chain has long been active in retail-focused decentralized finance. TRON is central to stablecoin transfers. Robinhood Chain, a newer addition to the supported list, points to the continued expansion of blockchain infrastructure tied to mainstream financial platforms.
What comes next
The success of the feature will depend on adoption, liquidity depth and technical reliability. Cross-chain systems often face their biggest tests not during quiet launches but during periods of heavy market movement, when users rush to transfer stablecoins, rebalance positions or access applications on different networks.
Developers and market participants are likely to monitor several areas closely: settlement times, pricing quality, security of the HTLC implementation, resolver competition, transaction failure rates and the cost of using the service compared with existing bridges and centralized platforms. Those factors will determine whether the new function becomes a routine tool or remains a specialized option for TON users.
The wider trend is clear. Digital assets are no longer concentrated on one or two networks. Stablecoin liquidity is spread across many ecosystems, while users expect applications to work with less friction. Infrastructure that can connect those environments without forcing users to surrender custody is becoming more important.
STON.fi’s launch is part of that broader shift. By linking TON with TRON, Ethereum and other major chains, the platform is trying to make stablecoin movement faster, more direct and less dependent on legacy bridge designs. If the system performs as described, it could strengthen TON’s connection to the wider crypto economy and give traders a simpler route between some of the largest pools of on-chain liquidity.
Explore how stablecoins power cross-chain ecosystems and global payments in this in-depth stablecoin guide on Toobit Academy.
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