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Tesseract

Cross-Rollup Atomic Swap Protocol

Tesseract is a production-ready cross-rollup atomic swap protocol enabling trustless token exchanges across Ethereum L2s. Built with Vyper smart contracts, a high-performance Rust relayer, and comprehensive DeFi security features including MEV protection, flash loan resistance, and atomic swap groups.

What is Tesseract?

Tesseract solves the fundamental challenge of cross-chain coordination by providing:

  • Atomic Execution: All-or-nothing transaction semantics across rollups
  • MEV Protection: Commit-reveal scheme prevents front-running and sandwich attacks
  • Flash Loan Resistance: Minimum 2-block delay before transaction resolution
  • Time-Bounded Coordination: Configurable execution windows (5-300 seconds)
  • Security-First Design: Built with Vyper for built-in overflow protection
graph LR
    A[Origin Rollup] -->|Buffer| B[Tesseract Coordinator]
    B -->|Resolve| C[Dependency Engine]
    C -->|Execute| D[Target Rollup]

Use Cases

Cross-Chain DeFi

Execute atomic trades, rebalance liquidity pools, and coordinate lending across Ethereum, Polygon, Arbitrum, Optimism, and Base.

Enterprise Workflows

Enable complex business logic across blockchain networks for supply chain, identity management, and payment rails.

Protocol Infrastructure

Build bridges, oracle networks, and interoperability layers with strong atomicity guarantees.

Quick Start

# Clone and setup environment
git clone https://github.com/cryptuon/tesseract.git
cd tesseract
uv sync

# Verify contract compilation (7 contracts)
uv run pytest tests/test_compilation.py -v

# Run full test suite
uv run pytest tests/ -v

# Deploy to testnet
uv run python scripts/deploy_simple.py sepolia

Get Started :material-arrow-right:

Key Features

  • :material-shield-check:{ .lg .middle } DeFi Security

    MEV protection via commit-reveal, flash loan resistance, reentrancy protection, and configurable slippage protection.

  • :material-link-variant:{ .lg .middle } Cross-Rollup Coordination

    Atomic swaps across Ethereum, Polygon, Arbitrum, Optimism, and Base with DAG-based dependency resolution.

  • :material-clock-fast:{ .lg .middle } Time-Bounded Execution

    Configurable coordination windows (5-300 seconds) ensure predictable transaction timing.

  • :material-coin:{ .lg .middle } Tokenomics & Governance

    TESS governance token, staking with tiered rewards (5-15% APY based on lock duration), and on-chain governance.

Architecture Overview

Tesseract uses a buffer-resolve-execute pattern, backed by 7 Vyper contracts and a Rust relayer.

Contract Size Purpose
TesseractBuffer.vy 12,578 bytes Core transaction buffering with DeFi security
AtomicSwapCoordinator.vy 8,332 bytes Order book and swap coordination
TesseractToken.vy 4,521 bytes TESS governance token (ERC-20)
TesseractStaking.vy 6,890 bytes Staking with tiered rewards
FeeCollector.vy 3,245 bytes Protocol fee collection and distribution
RelayerRegistry.vy 4,112 bytes Relayer bonding and management
TesseractGovernor.vy 5,678 bytes On-chain governance

Supported Networks

Network Mainnet Testnet
Ethereum Ready Sepolia
Polygon Ready Amoy
Arbitrum Ready (One) Sepolia
Optimism Ready Sepolia
Base Ready Sepolia

Current Status

Component Status
Smart Contracts (7) Complete
Rust Relayer Complete
Test Suite (135 tests) Complete
Monitoring Stack Complete
Terraform Infrastructure Complete
Testnet Deployment Ready
Security Audit Pending

Next Steps