What is STON.fi? A Guide to the DeFi Protocol on TON

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The Open Network (TON) is rapidly emerging as one of the most dynamic blockchains in the Web3 space, powered by Telegram’s billion-user ecosystem. With seamless wallet integrations, built-in mini-apps, and frictionless onboarding, TON has become a fertile ground for decentralized finance (DeFi) innovation. At the heart of this growth stands STON.fi, a leading automated market maker (AMM) protocol redefining how users swap, stake, and earn within the TON ecosystem.

This comprehensive guide explores STON.fi’s core features, ecosystem impact, and role in shaping the future of DeFi on TON — from its low-cost token swaps and liquidity aggregation to staking rewards and community-driven growth initiatives.

What is STON.fi?

STON.fi is a permissionless AMM protocol built on The Open Network (TON), enabling fast, secure, and low-cost token swaps without intermediaries. As one of the most active DeFi platforms on TON, it offers users direct access to decentralized trading through intuitive interfaces like the STON.fi app and its advanced liquidity aggregator, Omniston.

To interact with STON.fi, all you need is a compatible TON wallet — no registration or KYC required. The protocol operates entirely through smart contracts, ensuring full decentralization and user control over funds.

Key Features

“STON.fi was born from the belief that the next wave of DeFi adoption would come through platforms people already use — like Telegram. By leveraging the TON blockchain, we’re not just building an AMM protocol; we’re helping shape an entire ecosystem where liquidity, access, and community ownership are the default.”
— Slavik Baranov, CEO of STON.fi contributors team

How Does STON.fi Work?

At its core, STON.fi uses an Automated Market Maker (AMM) model — think of it as a 24/7 digital vending machine for crypto assets. Instead of relying on order books or centralized exchanges, trades are executed against liquidity pools funded by users.

When you swap tokens on STON.fi:

All funds are held in permissionless smart contracts — meaning no individual or entity can freeze, alter, or steal assets from pools.

👉 Discover how decentralized trading works with zero intermediaries.

Staking: Earn Rewards with STON Tokens

Holding the native STON token unlocks additional benefits. Users can stake their STON tokens for periods ranging from 3 to 24 months and receive:

Once the DAO launches, ARKENSTON holders will influence protocol upgrades, fee structures, and treasury allocations.

Liquidity Farming: Boost Your Yields

Beyond staking, users can participate in liquidity farming by providing tokens to designated pools and staking their LP tokens in yield farms.

Here’s how:

  1. Deposit token pairs (e.g., STON/USDT) into a liquidity pool.
  2. Receive LP tokens representing your share.
  3. Stake those LP tokens in a farm to earn additional rewards.

While farming offers higher potential returns than staking, it comes with risks — including impermanent loss, especially when token prices fluctuate significantly.

Impermanent Loss Protection: Reduce Risk

One of STON.fi’s standout innovations is its Impermanent Loss Protection program, currently available for the STON/USDT v2 pool.

Key details:

This feature increases confidence among LPs, encouraging deeper liquidity and long-term participation.

“This program isn’t just about numbers — it’s about creating confidence. When users feel secure providing liquidity, the entire ecosystem thrives.”
— Slavik Baranov

Omniston: The Liquidity Aggregator Powering TON DeFi

Omniston is STON.fi’s decentralized liquidity aggregation layer designed to optimize swap performance across multiple DEXs and protocols on TON.

Rather than relying on a single source of liquidity, Omniston queries multiple exchanges and routes trades through the most efficient path — delivering better prices and deeper liquidity with minimal slippage.

How Omniston Works

  1. User initiates a swap via a dApp.
  2. Request is sent to Omniston.
  3. Omniston broadcasts a request-for-quote (RFQ) to connected resolvers.
  4. Resolvers return competitive quotes.
  5. Omniston selects the best rate and executes the trade.
  6. Tokens are delivered securely via trustless smart contracts.

Developers benefit from single-point integration, reducing onboarding time from weeks to days and cutting maintenance costs by up to 70%. For end-users, this means faster trades and better execution — all without sacrificing decentralization.

👉 See how developers are integrating next-gen DeFi tools into their apps.

The STON Token: Utility and Governance

The STON token is the backbone of the STON.fi ecosystem, serving both utility and governance functions.

As more features roll out — including cross-chain swaps and margin trading — demand for STON is expected to grow across staking, farming, and protocol incentives.

Supported Tokens & Ecosystem Partnerships

With over 23,000 trading pairs, STON.fi supports a vast array of tokens native to the TON blockchain — including stablecoins, meme coins, utility tokens, and project-specific assets.

Notable integration partners include:

These collaborations expand accessibility for global users and simplify entry into TON-based DeFi.

STON.fi Roadmap: Building the Future of Cross-Chain DeFi

STON.fi has an ambitious multi-phase roadmap focused on scalability, interoperability, and user experience:

Phase 1: Cross-Chain Swaps (TON ↔ Tron)

Phase 2: Expansion to EVM Chains

Phase 3: Full Cross-Chain Protocol

Phase 4: DAO Launch & Telegram Bot

Phase 5: Advanced Trading Features

STON.fi Grant Program: Empowering Developers

To accelerate innovation on TON, STON.fi runs a Grant Program offering up to $10,000 in USDT to developers building DeFi applications using the STON.fi SDK.

Eligible projects must:

Grants cover development costs like coding, testing, and debugging — plus access to free tools from partner service providers.

There’s no application deadline — submissions are accepted year-round.

Stonbassadors Program: Community-Led Growth

Launched in November 2023, the Stonbassadors program rewards community members who promote STON.fi through content creation, education, and events.

Highlights:

Ambassadors also benefit from a referral system: earn 10% of referrals’ rewards for six months if they earn $50+ in STON.

The Future of DeFi on TON

As Telegram continues to onboard millions into crypto via mini-apps and embedded wallets, protocols like STON.fi are positioned at the forefront of mass DeFi adoption. By combining low fees, high speed, deep liquidity, and strong developer support, STON.fi is evolving into a critical infrastructure layer for cross-chain interoperability and user empowerment.

With upcoming upgrades like DAO governance, advanced trading options, and multi-chain connectivity, STON.fi isn’t just participating in TON’s growth — it’s helping define it.

Frequently Asked Questions (FAQ)

What is STON.fi?

STON.fi is a decentralized exchange (DEX) built on The Open Network (TON). It enables fast, low-cost token swaps using an automated market maker (AMM) model. Users can also stake tokens, provide liquidity, farm yields, and participate in community programs.

What is Omniston?

Omniston is STON.fi’s decentralized liquidity aggregator that sources optimal swap rates across multiple DEXs on TON. It reduces slippage and improves trade execution while simplifying integration for developers.

How does STON.fi make money?

STON.fi earns revenue through a 0.1% fee on every swap transaction. This fee contributes to protocol sustainability and future development. Additional income comes from ecosystem partnerships and grant program oversight.

Can I earn passive income on STON.fi?

Yes. You can earn through:

Is STON.fi safe?

Yes. All transactions occur via audited smart contracts with no custodial control. Funds remain under user control at all times. The protocol emphasizes transparency, decentralization, and security-by-design principles.

How do I start using STON.fi?

Connect your TON-compatible wallet (like Tonkeeper or OKX Wallet), navigate to ston.fi, and begin swapping or staking immediately — no sign-up required.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Always conduct your own research before engaging with any cryptocurrency project.