This project allows you to mint NFTs of deployed smart contracts in a batch from single or multiple addresses. It supports Ethereum and Polygon, including test networks.

1. Requirements
2. Installation
3. Usage
4. Configuration
5. Examples

• Python 3.8
• web3.py
• Blockchain API provider key e.g. from Infura, Alchemy or similar

1. git clone https://github.com/kamsec/nft-minter.git
2. cd nft-minter
3. pip install -r requirements.txt
   (or just pip install web3==5.25.0)

1. Specify settings in settings.json (example values):

   {
       "CHAIN_NAME": "Mumbai",
       "CONTRACT_ADDRESS": "0xF83C73a44C4a919aB3DF1B515B470e452032eeF4",
       "MINT_FUNCTION_NAME": "mint",
       "NUMBER_OF_MINTS": 6,
       "MINT_PRICE": 0.1,
       "EXTRA_MIXING_LAYERS": 0,
       "SEND_BACK": true,
       "LOGGING": true
   }

2. Specify secrets in secrets.json (replace ***):

   {
       "PRIVATE_KEY": "0x***",
       "PROVIDER": "***"
   }

3. Run the program in one of the available modes, e.g.:

   python minter.py -multi
   

   It will display selected settings, estimate transaction fees, and ask if you want to proceed. Enter y to run the program or anything else to exit.

Settings (settings.json):

• CHAIN_NAME - set to one of available chains:
  Ethereum, Ropsten, Rinkeby, Kovan, Polygon, Mumbai
  If you need to add other chain, you can modify CHAINS dict in settings.py
• CONTRACT_ADDRESS - the address of smart contract deployed on selected chain, with verified source code (available on corresponding blockchain explorer api)
• MINT_FUNCTION_NAME - the exact name of the minting function of smart contract to execute
• NUMBER_OF_MINTS - the number of times for minting function to be executed.
  In Multi mode this is also the number of accounts derived, each account will execute mint function once
• MINT_PRICE - the minimum price of single mint in Ether (or MATIC if we are on Polygon/Mumbai blockchain), not including transaction fee
• EXTRA_MIXING_LAYERS - only for -multi option - creates additional sets of addresses to mix coins and hide slightly the origin of funds
• SEND_BACK - only for -multi option - after minting, sends the remaining funds back to the master account
• LOGGING - enables printing transactions and logging in logs/ directory

In settings.py you can find additional advanced settings, but normally they don't require adjustments.

Secrets (secrets.json):

• PRIVATE_KEY - Private key of an address, starting with 0x
  You can generate new one by running

  python minter.py -newacc
  

• PROVIDER - Blockchain API provider key e.g. from Infura, Alchemy or similar

Modes (command-line arguments):

• -h - help page
• -newacc - New account mode - generates a new account, displays keys and quits the program
• -single - Single mode - initializes master_account from PRIVATE_KEY specified in secrets.json and calls specified mint function from it multiple (NUMBER_OF_MINTS) times.
• -multi - Multi mode - initializes master_account like in Single mode, by hashing the private key derives another NUMBER_OF_MINTS accounts, sends funds to them and mints once from every derived account

Example runs with different settings and modes can be found in logs/ directory.