Layer Zero Bridger

The Layer Zero Bridger is a Python script that automates the process of transferring USDC or USDT (stablecoin cryptocurrencies) between different blockchains (Polygon -> Avalanche -> BSC -> Polygon as a default route). It uses a set of pre-configured wallet addresses to perform transfers in both directions and repeat the process a configurable number of times. In addition to this, it is also possible to use script for Bungee Refuel, wallet balance checking, new wallets generation and more.

Supported chains and tokens

• Polygon (USDC, USDT)
• Fantom (USDC)
• Avalanche (USDC, USDT)
• BSC (USDT)
• Arbitrum (USDT, USDC)
• Optimism (USDC)
• Base (USDC)

Requirements

• Python 3.11
• An understanding of blockchain, cryptocurrency, and how to handle wallets and private keys securely.
• Docker (optional)

Getting Started

1. Clone the repository:

   git clone https://github.com/tmlnv/layer_zero_bridger.git
   cd layer_zero_bridger
   

2. Install the required dependencies:

   pip install -r requirements.txt
   

   Or, using Docker:

   docker build -t layer_zero_bridger .
   

3. Configure your wallets and number of cycles:

   Specify the wallet keys in the private_keys.example.env file and run a command below.
   Note: keys should be specified with a name for each key in a KEY=value way.

   mv private_keys.example.env private_keys.env
   

   In the config.py file, specify the min and max $ amounts for transferring, the number of transfer cycles you want to run and a $ amount for Bungee Refueling.

   AMOUNT_MIN = 100  # Min amount to bridge
   AMOUNT_MAX = 150  # Max amount to bridge
   # If stated amounts exceed wallet balance, the whole available balance would be bridged
   TIMES = 10  # Number of transfer cycles
   BUNGEE_AMOUNT = 10  # $ value of native asset to be bridged via Bungee Refuel
   

   Warning: Never disclose your private keys. They are sensitive information.

Usage

Execute the main.py script:

python main.py

Or, using Docker:

docker run -v ./private_keys.env:/app/private_keys.env layer_zero_bridger

To pass CLI arguments, append them after the image name and private_keys.env mounting:

docker run -v ./private_keys.env:/app/private_keys.env layer_zero_bridger --mode balance

Operation

The main script performs the following actions for each wallet:

1. After a random delay of 1 to 200 seconds, it initiates a USDC transfer from Polygon to Avalanche.
2. It waits for a random period between 1200 and 1500 seconds.
3. Then, it initiates a USDC transfer from Avalanche to BSC. USDT tokens are received on BSC.
4. It waits for a random period between 1200 and 1500 seconds.
5. Then, it initiates a USDT transfer from BSC back to Polygon. USDC tokens are received on Polygon.
6. It waits for a random period between 100 and 300 seconds.
7. These steps are repeated a predefined number of times (TIMES in config.py).

The script logs all its actions and reports when each wallet's transfers are done and when all tasks are finished.

Modules usage

To use separate modules, execute the main.py script using --mode flag with one of possible options or pass the --mode flag followed by the specific option to the Docker run command:

One way bridge

Execute only separated one-time bridging runs if you want just to transfer assets. Consider token availability on both departure and destination chains. Execute the main.py script using --mode one-way flag with one of possible options:

• pf to bridge from Polygon to Fantom
• pa to bridge from Polygon to Avalanche
• pb to bridge from Polygon to BSC
• parb to bridge from Polygon to Arbitrum
• po to bridge from Polygon to Optimism
• pbase to bridge from Polygon to Base
• fp to bridge from Fantom to Polygon
• fa to bridge from Fantom to Avalanche
• fb to bridge from Fantom to BSC
• ap to bridge from Avalanche to Polygon
• af to bridge from Avalanche to Fantom
• ab to bridge from Avalanche to BSC
• aarb to bridge from Avalanche to Arbitrum
• ao to bridge from Avalanche to Optimism
• abase to bridge from Avalanche to Base
• bp to bridge from BSC to Polygon
• bf to bridge from BSC to Fantom
• ba to bridge from BSC to Avalanche
• barb to bridge from BSC to Arbitrum
• bo to bridge from BSC to Optimism
• bbase to bridge from BSC to Base
• arbp to bridge from Arbitrum to Polygon
• arba to bridge from Arbitrum to Avalanche
• arbb to bridge from Arbitrum to BSC
• arbo to bridge from Arbitrum to Optimism
• arbbase to bridge from Arbitrum to Base
• op to bridge from Optimism to Polygon
• oa to bridge from Optimism to Avalanche
• ob to bridge from Optimism to BSC
• oarb to bridge from Optimism to Arbitrum
• obase to bridge from Optimism to Base
• basep to bridge from Base to Polygon
• basea to bridge from Base to Avalanche
• baseb to bridge from Base to BSC
• basearb to bridge from Base to Arbitrum
• baseo to bridge from Base to Optimism

Example:

python main.py --mode one-way pf

New wallet

Generate a new private key and its associated address if you require a fresh wallet. Execute the main.py script using --mode new-wallet flag.

Example:

python main.py --mode new-wallet

Checking Balances

Check wallet balances. Execute the main.py script using --mode balance flag.

Example:

python main.py --mode balance

Bungee Refuel

Get native tokens on the destination chain to pay fees using Bungee Refuel. Execute the main.py script using --mode refuel flag with one of possible options:

• pa to refuel from Polygon to Avalanche
• pb to refuel from Polygon to BSC
• parb to refuel from Polygon to Arbitrum
• po to refuel from Polygon to Optimism
• pbase to refuel from Polygon to Base
• ap to refuel from Avalanche to Polygon
• ab to refuel from Avalanche to BSC
• aarb to refuel from Avalanche to Arbitrum
• ao to refuel from Avalanche to Optimism
• abase to refuel from Avalanche to Base
• bp to refuel from BSC to Polygon
• ba to refuel from BSC to Avalanche
• barb to refuel from BSC to Arbitrum
• bo to refuel from BSC to Optimism
• bbase to refuel from BSC to Base
• arbp to refuel from Arbitrum to Polygon
• arba to refuel from Arbitrum to Avalanche
• arbb to refuel from Arbitrum to BSC
• arbo to refuel from Arbitrum to Optimism
• arbbase to refuel from Arbitrum to Base
• op to refuel from Optimism to Polygon
• oa to refuel from Optimism to Avalanche
• ob to refuel from Optimism to BSC
• oarb to refuel from Optimism to Arbitrum
• obase to refuel from Optimism to Base
• basep to refuel from Base to Polygon
• basea to refuel from Base to Avalanche
• baseb to refuel from Base to BSC
• basearb to refuel from Base to Arbitrum
• baseo to refuel from Base to Optimism

Example:

python main.py --mode refuel pa

Note: Consider that Bungee Refuel has different limits for different chains.

Disclaimer

This script is meant for educational purposes. Always ensure you're keeping your private keys secure.

License

MIT