Flashbots Transaction Sender — Private Ethereum Transaction

Flashbots Transaction Sender is a Python-based tool for sending Ethereum transactions directly through Flashbots, bypassing the public mempool and protecting transactions from frontrunning and MEV attacks.

The script uses Web3.py together with the Flashbots API to submit transaction bundles straight to block producers, increasing execution reliability for sensitive or high-value operations.

How It Works

The sender connects to the Ethereum network via an Infura RPC endpoint and submits transactions as Flashbots bundles. Instead of exposing the transaction to the public mempool, it is delivered privately to miners, reducing the risk of frontrunning.

The tool continuously monitors transaction inclusion and automatically adapts its strategy if execution fails.

Key Features & Capabilities

Web3.py Integration Connects to Ethereum nodes using Infura RPC for reliable network access.

Flashbots Bundle Submission Sends transactions directly to miners, bypassing the public mempool.

Dynamic Gas Fee Adjustment Automatically increases gas fees to improve inclusion probability.

Transaction Inclusion Monitoring Verifies whether the transaction has been mined and included in a block.

Automated Retry Logic Retries failed submissions with progressively adjusted gas parameters.

Use Cases

MEV-sensitive transactions

High-value Ethereum operations

Arbitrage and DeFi automation

Frontrunning-resistant contract interactions