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TAC is an EVM for Telegram: a Layer 1 with a TON-specific Cross-Chain Layer that connects Ethereum dApps and developers with Telegram’s users without exposing users to bridges, extra wallets, or wrapped assets. TAC eliminates the gap between TON’s billion-user reach and EVM’s programmability through Hybrid dApps - EVM dApps natively accessible by any TON wallet holder.

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The Problem TAC Solves

For EVM Developers


Challenge: Reaching TON’s billion users requires rebuilding entire applications in FunC, TON’s native language.

TAC Solution: Deploy existing Solidity contracts as-is and make them accessible to TON users

For TON Users


Challenge: Limited access to DeFi, gaming, and other EVM applications that dominate the blockchain space.

TAC Solution: Use any EVM application directly from TON wallets without bridges or multiple wallets
The world’s largest developer community meets the largest user base

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How TAC Works

TAC operates through the following elements that work together seamlessly:
A frontend that implements TAC SDK under the hood and the corresponding set of dApp Solidity contracts deployed on TAC EVM Layer.
A handy TypeScript and Python library implemented within Hybrid dApp that enables developers to connect TON wallets with EVM applications.
A distributed network of sequencers that securely routes messages between TON and TAC EVM:
  • Validation: Sequencers verify all transactions and asset transfers
  • Consensus: 3/5 sequencer consensus with BFT guarantees
  • Security: Multiple validation layers prevent double-spending and fraud
This isn’t a traditional bridge — it’s a purpose-built messaging system designed for hybrid applications.
Current Network Status: The sequencer network is currently distributed but not decentralized. Full decentralization is on the roadmap as the network matures.
TAC EVM Layer 1 is a CosmosSDK-based blockchain that runs unmodified Solidity contracts and achieves ≈2-second finality through dPoS. This means:
  • Deploy existing Solidity contracts without modifications
  • Use familiar tools like Hardhat, Remix, and MetaMask
  • Built on proven Cosmos SDK with Tendermint consensus
  • Secured by delegated Proof of Stake with economic incentives
The EVM layer handles all application logic and state, while the TON Adapter manages cross-chain communication.
Specialized Solidity contracts that make cross-chain interaction feel native. On the TAC EVM they receive, decode and forward cross-chain messages to the target EVM contracts.
Agnostic Proxy beta feature allowing for skipping TAC Proxies entirely is already available within TAC SDK

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Key Benefits

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Deploy Once, Reach Billions

  • No code rewrites: Deploy existing Solidity contracts directly
  • Familiar tooling: Use Hardhat, Truffle, Remix, and other EVM tools
  • Hybrid dApp conversion: Every deployment becomes a Hybrid dApp accessible from TON
  • Cross-chain SDK: User-friendly TypeScript library handles TON integration
  • Telegram MiniApps: Bring EVM-powered logic directly inside Telegram. No need for Google Play/App Store installments

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Transaction Flow Example

Here’s what happens when a TON user swaps tokens on an EVM DEX through TAC’s hybrid dApp system (like Curve):

User Intent

User opens a DEX interface, connects his/her TON wallet, and selects token to swap.

TAC SDK encoding

The TAC SDK implemented within DEX frontend conveniently encodes required EVM calldata for the upcoming swap on the TAC blockchain and brings up the prepared transaction for user to approve.

User Action

User approves the transaction.

TON Adapter Locking

The TON adapter receives user’s assets and safely locks them on TON.

Sequencer Validation & Consensus

Sequencer network finds and validates the transaction, forms Merkle trees, reaches consensus, and selects the executor. The final decision in set within the TAC blockchain.

EVM Execution

A designated executor finds the transaction to execute, validates its Merkle proof, triggers asset minting/unlocking, and calls the swap on the target DEX contract on TAC.

Result Delivery

Swap completes and new tokens are sent back to the user’s TON wallet through the similar secure process.

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What Makes TAC Different

TAC is not a cross-chain workaround — it is a native execution path between two ecosystems that were never meant to connect. By removing barriers instead of building over them, TAC aligns UX, liquidity, and developer incentives.
Unlike traditional bridges that move assets between existing chains, TAC creates hybrid applications that natively serve both ecosystems. Users don’t “bridge to another chain” — they use applications that happen to run on EVM but feel completely native to TON. This fundamental difference enables:
  • Seamless UX: No wallet switching or manual bridging
  • Unified liquidity: Assets flow where they’re needed most
  • Developer efficiency: Build once, serve both ecosystems
  • Network effects: Growth in one ecosystem benefits the other