Ston
3 known investors
STON.fi is a decentralized exchange (DEX) built on the TON blockchain, operating as an automated market maker (AMM) with open-source smart contracts. It offers on-chain verification, published source code, and third-party audit reports for its trading protocol.
Also known as STON fi Β· ston-fi Β· STON.fi
Founders & leadership
Investors Β· 3
Also in the syndicate Β· 1
Company profile
researched Aug 2026STON.fi is a decentralized exchange and DeFi protocol suite built on the TON blockchain. It operates as an automated market maker, letting users swap TON-based tokens without a central counterparty and letting anyone supply assets to liquidity pools in return for fees. The platform emphasises low transaction fees and low slippage, integrates directly with TON wallets, and supports TON-based tokens for swapping, liquidity provision and farming.
Beyond intrachain swaps, STON.fi is developing cross-chain capabilities through Omniston, a liquidity aggregation protocol intended to enable bridge-free swaps across blockchains. The cross-chain design is described as a Request For Quote (RFQ) model settled with Hashed Timelock Contracts so that swaps execute atomically without trusted intermediaries or custodians, an approach the project labels a Zero-Trust Cross-Chain DEX.
The protocol has a native utility token, STON, issued on TON. STON is used in the protocol's core mechanics and confers governance rights: holders who stake long term earn GEMSTON rewards and receive DAO voting power over protocol upgrades and new features. STON is tradable directly on the STON.fi application.
Business model
The protocol runs AMM liquidity pools in which swap fees accrue to liquidity providers, with the STON token integrated into protocol mechanics and long-term staking that yields GEMSTON rewards and DAO voting power.
Trading activity on the AMM generates swap fees paid by traders to liquidity pools.
Traction
At the time of the July 2025 Series A, STON.fi reported more than $6 billion in cumulative trading volume and over 27 million operations. Its public repositories show community uptake, with the core DEX contracts, Rust TON SDKs and TypeScript SDK each attracting dozens to hundreds of stars and forks.
Latest developments
In April 2025 the Omniston liquidity aggregation protocol launched on TON Blockchain, and in July 2025 STON.fi enabled swaps to TON Wallet for US users. Later that month the team announced a $9.5 million Series A to fund cross-chain operations via Omniston, concentrated liquidity pools, native limit orders, a community governance layer and other core protocol optimisations. Public repositories continued to be updated through 2026, including Rust TON libraries and Omniston SDK components.
βΈFull profile β market position, technology, go-to-market, geography, history
Market position
Described in coverage of its Series A as the leading DEX and foundational DeFi protocol suite on TON Blockchain, noted for token variety, deep liquidity, and leading total value locked and trading volume within the TON ecosystem.
The project combines an AMM on TON with an RFQ-based, HTLC-settled cross-chain exchange that avoids bridges and trusted custodians, paired with deep TON-native liquidity, wallet integration and open-source contracts and SDKs.
Technology
STON.fi's DEX core is implemented as smart contracts on TON, with public repositories covering core DEX contracts, TypeScript SDKs and HTTP API clients, Rust libraries and SDKs for TON (cells, TLB, addresses, wallets, contracts, tonlibjson integration), an Omniston SDK monorepo and widget, and internal Rust infrastructure for synchronization, metrics and database access. The cross-chain layer uses a Request For Quote model with Hashed Timelock Contracts to execute atomic swaps without third-party custodians, and the platform is non-custodial. The STON token contract on TON carries a CertiK rating of 4.4.
Go-to-market
Distribution centres on a web application connected to TON wallets, with wallet integrations (including swaps to TON Wallet for US users), developer SDKs, an API and an embeddable Omniston widget, alongside community and governance participation through token staking.
Retail crypto traders and liquidity providers in the TON ecosystem who hold TON-compatible wallets such as the Telegram wallet, Tonkeeper or MyTonWallet, plus developers integrating swap functionality via STON.fi SDKs and APIs.
Geography
Operates as an on-chain protocol accessible through TON wallets; product availability includes swaps to TON Wallet for users in the United States.
History
STON.fi is a portfolio project of The Open Platform (TOP). Its STON token recorded an all-time high of $32.65 in April 2024 and an all-time low of $0.2843 in October 2025. The Omniston protocol launched in April 2025, and in July 2025 the core development team closed a $9.5 million Series A led by Ribbit Capital and CoinFund, with Slavik Baranov serving as CEO of STON.fi Dev.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 3
launches, deals, and filingsThe core development team behind STON.fi raised $9.5 million in a Series A round led by Ribbit Capital and CoinFund. Proceeds were earmarked for cross-chain development via the Omniston liquidity aggregator, concentrated liquidity pools, native limit orders and a community governance layer.
$9.5M source β
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
βΈResearch sources Β· 8
primary sources listed
- STON price today, STON to USD live price, marketcap and chart | CoinMarketCapcoinmarketcap.com Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Ston do?
- STON.fi is an automated market maker DEX on the TON blockchain with cross-chain swap and liquidity aggregation protocols.
- Who founded Ston?
- Ston was founded by Slavik Baranov, Mike Fedorov.
- Who are Ston's investors?
- Ston's investors include CoinFund, The Open Platform.