py-builder-signing-sdk

import os from builder_signing_sdk.builder import Builder from eth_account import Account # WARNING: In a real application, retrieve your private key securely, e.g., from environment variables. # DO NOT hardcode private keys in production code. # This is a dummy private key for demonstration purposes ONLY. private_key_env = os.environ.get('BUILDER_PRIVATE_KEY', '0x1111111111111111111111111111111111111111111111111111111111111111') if private_key_env == '0x1111111111111111111111111111111111111111111111111111111111111111': print("WARNING: Using a dummy private key. Set BUILDER_PRIVATE_KEY environment variable for real usage.") # Initialize an Ethereum account from the private key account = Account.from_key(private_key_env) # Define your builder's name builder_name = os.environ.get('BUILDER_NAME', 'my-test-builder') # Initialize the Builder SDK builder = Builder(builder_name, account) print(f"Initialized Builder SDK for '{builder_name}' with Ethereum address: {account.address}") print("You can now use 'builder.sign_bid()' or 'builder.sign_bundle()' to sign MEV payloads.") # Example of how you would call sign_bid (requires valid data, commented out to keep runnable): # signed_bid_id = builder.sign_bid( # gas_limit=21000, # gas_price=10**10, # base_fee_per_gas=10**10, # builder_eth_balance_delta=0, # builder_eth_balance_after=0, # block_number=12345678, # tx_hash="0x" + "0"*64, # tx_eth_value=0, # sender_address=account.address, # destination_address="0x" + "0"*40, # mev_gas_price=0 # ) # print(f"Signed dummy bid ID: {signed_bid_id}")