How Does STON.fi Work?
STON.fi is the leading decentralized exchange on the TON blockchain, deeply integrated with the Telegram ecosystem. Users can swap TON-based tokens, provide liquidity to earn trading fees, and farm STON token rewards. With over $6 billion in all-time trading volume and 28 million transactions, it dominates TON DeFi. The protocol raised $9.5M in Series A funding from Ribbit Capital and CoinFund in July 2025, and is building Omniston, a cross-chain aggregation protocol for bridgeless swaps. Smart contracts are audited by Trail of Bits with active bug bounty programs through Certik and HackenProof.
TVL
$25M
Sector
DEX
Risk Grade
C+
Value Grade
C
Core Mechanisms
4.1.1
Constant product AMM on TON blockchain with standard swap functionality
Standard xy=k AMM adapted for TON blockchain architecture. Handles majority of DEX volume on TON.
2.1.2
Percentage-based swap fees with standard DEX fee structure
Standard percentage-based trading fees split between LPs and protocol.
7.1.1
Yield farming programs with STON token incentives for liquidity providers
Standard liquidity mining to bootstrap pool depth on TON.
5.1.1
STON token governance layer for protocol parameter decisions
Community governance layer in development, funded by Series A. Standard token-weighted model.
8.1.3
NovelOmniston bridgeless cross-chain swap aggregation across multiple blockchains
Novel cross-chain aggregation protocol that enables swaps across blockchains without bridges or wrapped assets. Currently TON-focused with cross-chain expansion planned.
1.2.1
STON token with 37M/100M circulating, remaining in vesting
Standard vesting schedule with majority of supply still locked.
How the Pieces Interact
Bridgeless cross-chain swaps require novel settlement guarantees. If settlement fails or is manipulated, users could lose funds without the protection mechanisms that traditional bridge designs provide.
STON.fi's growth is tightly coupled to Telegram-TON integration. Regulatory action against Telegram or changes in Telegram's crypto policy could sharply reduce user access and TVL.
With 63% of STON supply still locked, upcoming vesting unlocks could create sell pressure that exceeds the thin liquidity on TON DEXs, causing significant price impact.
Token emission incentives attract mercenary capital to AMM pools. If STON rewards decline or token price drops, LPs withdraw rapidly, fragmenting liquidity.
What Could Go Wrong
- STON.fi is deeply tied to the TON blockchain ecosystem, which is uniquely dependent on Telegram's continued integration and support — regulatory action against Telegram could cascade to all TON DeFi.
- Only 37% of STON tokens are currently circulating from a 100M supply. Future token unlocks for team and investors could create substantial sell pressure on relatively thin TON DEX liquidity.
- The Omniston cross-chain aggregation protocol promises bridgeless swaps across multiple blockchains, but this novel architecture introduces untested cross-chain settlement risk.
Telegram-TON Regulatory Disruption
ModerateTrigger: Regulatory action against Telegram or TON blockchain restricts user access to TON DeFi ecosystem
- 1.Government regulatory action targets Telegram or TON Foundation — Telegram restricts or removes crypto features from the app
- 2.TON ecosystem user access sharply declines — STON.fi trading volume and TVL drop as users lose primary access point
- 3.LPs withdraw as volume declines — Liquidity spirals downward, STON token price crashes, ecosystem confidence collapses
Risk Profile at a Glance
Overall: C+ (37/100)
Lower score = safer