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n8n-nodes-ethereum-automation

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n8n node for Ethereum operations including wallet creation, sending ETH/ERC20 tokens, and transaction monitoring

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# n8n Ethereum Node A comprehensive n8n node for interacting with the Ethereum blockchain, including wallet creation, sending ETH/ERC20 tokens, and balance checking. ## Features ### Wallet Operations - **Create Wallet**: Generate new Ethereum wallets with private keys and mnemonics (no credentials required) - **Get Balance**: Check ETH balance of any wallet address (credentials required if no address provided) ### Transaction Operations - **Send ETH**: Transfer ETH between addresses using wallet credentials (credentials required) - **Get Transaction**: Retrieve transaction details by hash (no credentials required) ### Token Operations - **Send Token**: Transfer ERC20 tokens between addresses using wallet credentials (credentials required) - **Get Token Balance**: Check ERC20 token balances (credentials required if no address provided) ## Credentials The node uses the **EthereumWallet** credential for operations that require private keys: **Operations requiring credentials:** - Send ETH - Send ERC20 tokens - Get Balance (when no specific address is provided) - Get Token Balance (when no specific address is provided) **Operations NOT requiring credentials:** - Create Wallet - Get Transaction Details ## Configuration ### RPC Configuration Each operation can optionally specify a custom RPC URL. If not provided, the default endpoint `https://ethereum-rpc.publicnode.com` will be used. ### Chain ID All operations use Ethereum mainnet (Chain ID = 1). ## Common Token Addresses - **USDT**: `0xdAC17F958D2ee523a2206206994597C13D831ec7` (6 decimals) - **WETH**: `0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2` (18 decimals) ## Error Handling The node includes comprehensive error handling for: - Invalid addresses - Insufficient funds - Network connectivity issues - Invalid transaction hashes - Token contract errors ## Development ```bash npm install npm run build ``` ## Changelog - **v1.0.0**: Initial release with wallet, transaction, and token operations - Added support for multiple wallet creation - Added decimal support for token transfers - Added optional RPC URL configuration per operation - Added credential-based security for private key operations