Automatically build transactions on diverse Blockchains

Build transactions on diverse Blockchains with Python & Rust Manipulate MEV with Python & Rust Key Features:

1. Multi-chain support: EVM-compatible chains and Tendermint-based chains
2. Modular design: Separate builders for different blockchain types
3. Extensibility: Easy to add support for new chains or transaction types
4. DeFi operations: Token swapping with multiple aggregator support
5. Staking operations: Particularly detailed for Polygon staking

Areas for Potential Expansion:

1. Implement more Tendermint-based chain operations in Rust
2. Expand Injective Protocol support beyond send transactions
3. Add support for more DeFi operations across different chains
4. Implement error handling and recovery mechanisms
5. Add more comprehensive testing and documentation

Requirements:

• Python 3.10+
• Rust 1.81+

1. EVM Blockchain Tx Handler & MEV Handler

• Polygon
• Ethereum
• EVM-like Blockchains

Python implementation (evm/builder.py and evm/swapper.py) Rust implementation (evm/swapper.rs)

• setup_web3_connection function:

  • Establishes a Web3 connection to an EVM-compatible blockchain

• EVMTransactionBuilder class: Handles gas estimation, contract ABI fetching, and transaction building Supports allowance, contract interactions, and transaction signing/broadcasting

• PolygonStakingTransactionBuilder class (extends EVMTransactionBuilder):

  • Specialized for Polygon staking operations
  • Supports staking, unstaking, restaking, and reward withdrawal

• Swapper class:

  • Implements token swapping functionality
  • Supports multiple aggregators (e.g., 1inch, Uniswap)
  • Handles token approvals and swap execution

2. Tendermint Tx Handler

• Cosmos
• Celestia
• ...

Python implementation (tendermint/builder.py):

• Abstract TendermintTxBuilder class:

  • Defines interface for Tendermint-based blockchain transactions

• CosmosTxBuilder class (implements TendermintTxBuilder):

  • Supports send, delegate, undelegate, and redelegate transactions

• InjectiveTxBuilder class (implements TendermintTxBuilder):

  • Specialized for Injective Protocol transactions
  • Currently implements send transaction

3. Solana Tx Handler

• Solana

Python implementation (solana/builder.py):

• Abstract SolanaTxBuilder class:

  • Defines interface for Solana transactions

• SolanaTxBuilder class (implements SolanaTxBuilder):

  • Supports send transaction