Ston.Fi

STON.fi Review 2026: Non-Custodial AMM DEX on TON Blockchain

STON.fi is a non-custodial AMM DEX on TON blockchain, launched in 2022. Swap fee ~0.30%; no registration or KYC. Supports TON jettons, USD₮, wrapped BTC/ETH, xStocks. Cross-chain to TRON and EVM via Omniston. LP pools and yield farming available. dataTooltip 09/17/2026

Ston.Fi

DEX

4.0/5

Quick Facts

Established

2022

Service type

AMM DEX on TON blockchain

Supported network

TON native; cross-chain to TRON and EVM via Omniston

Supported assets

TON jettons, USD₮, wrapped BTC/ETH, xStocks

Fees

~0.30% per swap (varies by pool)

Custody model

Non-custodial (smart contracts + user wallet)

Wallet support

Tonkeeper, MyTonWallet, Telegram Wallet, TON Space

KYC

Not required for standard swaps

Liquidity provision

LP pools and yield farming available

Support

Telegram, email, Help Center

Available atAvailable in eligible jurisdictions where cryptocurrency services are permitted under applicable law; users must self-certify they are not subject to sanctions or located in a prohibited jurisdiction.

Provider Metrics

KYC

Not required

AML

Published / Sanctions screening

4.0

0 reviews

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Transaction speed4.0Equal to estimate4.0Refund policy4.0Partner support4.0Reviews4.1

Composite score

Weighted across all four metrics

4.0 /5

Pros and cons

Pros

Fully non-custodial trading
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Leading DEX by volume on TON
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No registration or KYC required
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Deep liquidity via Omniston aggregation
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Supports LP deposits and farming

Cons

TON-ecosystem-centric liquidity
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Impermanent loss risk for LPs
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Requires a TON-compatible wallet
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Smart contract risk inherent to DeFi
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Fees vary by individual pool

Frequently Asked Questions About STON.fi

What is STON.fi and how does it appear on Swapzone? dropdown

STON.fi is a non-custodial automated market maker DEX built natively on the TON blockchain, launched in Q3 2022. STON.fi enables permissionless crypto swaps across TON, TRON, and EVM-compatible chains through its Omniston cross-chain protocol. On Swapzone, the non-custodial instant crypto exchange aggregator, STON.fi holds a 4.1/5 composite rating. Swapzone lists STON.fi alongside 18+ exchange partners so users compare live rates before executing a swap.

How does STON.fi execute a crypto swap? dropdown

STON.fi executes swaps using a constant-product AMM model, where smart contracts on TON automatically determine output amounts based on pool reserves. Users connect a compatible wallet (Tonkeeper, MyTonWallet, Telegram Wallet, or TON Space), select an asset pair, and confirm the transaction. STON.fi routes the swap through its Omniston aggregator to source the best available liquidity across pools. Private keys never leave the user's wallet during any STON.fi transaction.

Is STON.fi legit and what security measures does it apply? dropdown

STON.fi is a verified non-custodial DEX on the TON blockchain with $8 billion in all-time trading volume and 37 million completed swaps across 6 million users as of 2026. STON.fi's smart contracts are audited by Trail of Bits and covered by active bug bounty programs with CertiK and HackenProof. The STON.fi codebase is fully open-source. Trustpilot records a 4.1/5 rating from 18 reviews, with 72% of users awarding five stars.

Does STON.fi require KYC or account registration? dropdown

STON.fi does not require KYC or account registration for any swap on the platform. Users access STON.fi by connecting a TON-compatible wallet such as Tonkeeper, MyTonWallet, or Telegram Wallet. No personal data is collected during standard swap operations. STON.fi users must self-certify compliance with OFAC, UN, and EU sanctions regimes before transacting, but no identity documents are submitted to the protocol.

What fees does STON.fi charge and which assets does it support? dropdown

STON.fi charges approximately 0.30% per swap, with roughly 0.20% distributed to liquidity providers and 0.10% directed to the protocol. Individual pool fees vary. Separate TON network fees apply and typically cost fractions of a cent per transaction. STON.fi supports 30,000+ TON tokens alongside USDt, wrapped BTC, wrapped ETH, xStocks, and assets across TON, TRON, and EVM-compatible chains via the Omniston protocol.

What are the latest STON.fi developments in 2026? dropdown

STON.fi reached a key milestone in Q2 2026 with the launch of its Omniston cross-chain beta, enabling atomic swaps between TON, TRON, and EVM-compatible networks in a single interface. STON.fi's all-time trading volume surpassed $8 billion and total value locked stands at $27 million as of 2026. Additional feature rollouts are scheduled through Q1 2027, covering expanded cross-chain support and STON token staking governance upgrades.

What are the main alternatives to STON.fi on Swapzone? dropdown

Swapzone is a non-custodial instant crypto exchange aggregator listing 18+ partners including STON.fi. The closest STON.fi alternatives on Swapzone for non-custodial crypto swaps include ChangeNOW, SimpleSwap, StealthEX, and SideShift. These partners cover a broader range of blockchains beyond the TON ecosystem. Swapzone displays live rate quotes from all partners simultaneously so users compare STON.fi rates against alternatives before committing to any stonfi crypto swap.