n8n-nodes-avalanche

[Velocity BPA Licensing Notice]

This n8n node is licensed under the Business Source License 1.1 (BSL 1.1).

Use of this node by for-profit organizations in production environments requires a commercial license from Velocity BPA.

For licensing information, visit https://velobpa.com/licensing or contact [email protected].

A comprehensive n8n community node for Avalanche blockchain providing 12 resources and 40+ operations for C-Chain, X-Chain, P-Chain, DeFi, staking, and cross-chain operations. Includes polling triggers for blockchain monitoring.

Features

C-Chain (EVM) Operations

• Account: Get balances, transaction counts, transaction history
• Transactions: Send AVAX, get transaction details, wait for confirmations
• Tokens (ERC-20): Get balances, transfer, approve, check allowances
• NFTs (ERC-721/1155): Get balances, owners, metadata, transfer NFTs
• Smart Contracts: Read/write contract functions, get ABIs
• DeFi: WAVAX wrap/unwrap, token price queries

X-Chain Operations

• Asset balances and transfers
• UTXO management
• Asset information queries

P-Chain Operations

• Validators: Get current/pending validators
• Staking: Get staking parameters and info
• Subnets: Query subnet information

Cross-Chain

• Atomic UTXOs for cross-chain transfers
• Multi-chain balance queries

Network & Utility

• Network information (ID, name, node version)
• Gas price and fee data
• Block information
• AVAX price from Snowtrace
• Unit conversion utilities
• Address validation

Triggers (Polling)

• New block detection
• Address activity monitoring
• Token transfer monitoring
• Contract event listening
• Balance change alerts
• Gas price alerts
• Whale transfer alerts

Installation

Community Nodes (Recommended)

1. Open n8n
2. Go to Settings > Community Nodes
3. Click Install a community node
4. Enter n8n-nodes-avalanche
5. Click Install

Manual Installation

1. Clone or download this repository:

git clone https://github.com/Velocity-BPA/n8n-nodes-avalanche.git
cd n8n-nodes-avalanche

2. Install dependencies and build:

npm install
npm run build

3. Link to n8n:

mkdir -p ~/.n8n/custom
ln -s $(pwd) ~/.n8n/custom/n8n-nodes-avalanche

4. Restart n8n

Development Installation

# Extract the zip file
unzip n8n-nodes-avalanche.zip
cd n8n-nodes-avalanche

# Install dependencies
npm install

# Build the project
npm run build

# Create symlink to n8n custom nodes directory
mkdir -p ~/.n8n/custom
ln -s $(pwd) ~/.n8n/custom/n8n-nodes-avalanche

# Restart n8n
n8n start

Credentials Setup

Avalanche RPC

| Field | Description | |-------|-------------| | Network | Mainnet, Fuji Testnet, or Custom | | RPC Provider | Public (free), Infura, Alchemy, QuickNode, or Custom URL | | Private Key | Optional - for signing transactions (hex format) |

Snowtrace API

| Field | Description | |-------|-------------| | API Key | Get from Snowtrace | | Network | Mainnet or Fuji |

Avalanche Subnet

| Field | Description | |-------|-------------| | Subnet RPC URL | Your subnet's RPC endpoint | | Subnet ID | The subnet identifier | | Blockchain ID | The blockchain identifier | | Chain ID | The EVM chain ID |

Resources & Operations

Account

| Operation | Description | |-----------|-------------| | Get Balance | Get AVAX balance of an address | | Get Transaction Count | Get nonce/transaction count | | Get Transaction History | Get transaction history from Snowtrace |

Block

| Operation | Description | |-----------|-------------| | Get Block | Get block by number or hash | | Get Latest Block | Get the latest block | | Get Block Number | Get current block number |

Token (ERC-20)

| Operation | Description | |-----------|-------------| | Get Token Balance | Get ERC-20 token balance | | Get Token Info | Get token name, symbol, decimals | | Transfer Token | Transfer ERC-20 tokens | | Get Allowance | Get token spending allowance | | Approve Token | Approve token spending |

NFT (ERC-721)

| Operation | Description | |-----------|-------------| | Get NFT Balance | Get NFT balance for an address | | Get NFT Owner | Get owner of an NFT | | Get NFT Metadata | Get NFT metadata | | Get NFT Token URI | Get NFT token URI |

Transaction

| Operation | Description | |-----------|-------------| | Send AVAX | Send AVAX to an address | | Get Transaction | Get transaction details | | Get Transaction Receipt | Get transaction receipt | | Wait for Transaction | Wait for confirmation |

Contract

| Operation | Description | |-----------|-------------| | Read Contract | Call a read-only function | | Write Contract | Execute a contract function | | Get ABI | Get contract ABI from Snowtrace |

DeFi

| Operation | Description | |-----------|-------------| | Get Token Price | Get token price from DEX | | Get Swap Quote | Get quote for token swap | | Wrap AVAX | Wrap AVAX to WAVAX | | Unwrap WAVAX | Unwrap WAVAX to AVAX |

P-Chain

| Operation | Description | |-----------|-------------| | Get Validators | Get current validators | | Get Pending Validators | Get pending validators | | Get Staking Info | Get staking parameters | | Get Subnets | Get all subnets |

X-Chain

| Operation | Description | |-----------|-------------| | Get Balance | Get X-Chain balance | | Get Asset Info | Get asset information | | Get UTXOs | Get UTXOs for an address |

Network

| Operation | Description | |-----------|-------------| | Get Network Info | Get network information | | Get Gas Price | Get current gas price | | Get Chain ID | Get chain ID | | Get AVAX Price | Get AVAX price in USD |

Utility

| Operation | Description | |-----------|-------------| | Convert Units | Convert between AVAX units | | Validate Address | Validate Avalanche address | | Encode Function | Encode function call data | | Decode Function | Decode function return data |

Trigger Node

The Avalanche Trigger node monitors blockchain events using polling.

Event Types

| Event | Description | |-------|-------------| | New Block | Trigger on new blocks | | Address Activity | Monitor address for transactions | | Token Transfer | Monitor ERC-20 transfers | | Contract Event | Listen for contract events | | Balance Change | Monitor balance changes | | Gas Price Alert | Alert on gas price changes | | Whale Alert | Large transfer monitoring |

Usage Examples

Get Account Balance

// Using Avalanche node
// Resource: Account
// Operation: Get Balance
// Address: 0x742d35Cc6634C0532925a3b844Bc9e7595f9Eb3d

// Returns:
{
  "address": "0x742d35Cc6634C0532925a3b844Bc9e7595f9Eb3d",
  "balanceWei": "1500000000000000000",
  "balanceAvax": "1.5"
}

Send AVAX

// Using Avalanche node
// Resource: Transaction
// Operation: Send AVAX
// To Address: 0x...
// Amount: 1.0

// Returns:
{
  "hash": "0x...",
  "from": "0x...",
  "to": "0x...",
  "value": "1.0"
}

Monitor Whale Transfers

// Using Avalanche Trigger node
// Event: Whale Alert
// Threshold: 10000 AVAX

// Triggers when transfers >= 10000 AVAX detected

Avalanche Concepts

Three-Chain Architecture

Avalanche uses three built-in blockchains:

• C-Chain: Contract Chain - EVM-compatible for smart contracts
• X-Chain: Exchange Chain - for creating and trading assets
• P-Chain: Platform Chain - for validators and subnets

Native Token

AVAX is the native token used for:

• Transaction fees
• Staking
• Subnet creation
• Cross-chain transfers

Subnets

Subnets are independent networks that can have their own:

• Validators
• Virtual machines
• Token economics
• Governance rules

Networks

| Network | Chain ID | RPC Endpoint | |---------|----------|--------------| | Mainnet C-Chain | 43114 | https://api.avax.network/ext/bc/C/rpc | | Fuji C-Chain | 43113 | https://api.avax-test.network/ext/bc/C/rpc |

Error Handling

The node includes comprehensive error handling:

• Network connection errors
• Invalid address errors
• Insufficient balance errors
• Contract execution errors
• Rate limiting errors

Enable Continue on Fail to handle errors gracefully in workflows.

Security Best Practices

1. Never share private keys - Use secure credential storage
2. Use testnet first - Test workflows on Fuji before mainnet
3. Validate addresses - Use the Validate Address operation
4. Set gas limits - Prevent unexpected transaction costs
5. Monitor balances - Use triggers to track wallet activity

Development

# Install dependencies
npm install

# Build
npm run build

# Watch mode
npm run dev

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Lint
npm run lint

# Fix linting issues
npm run lint:fix

Author

Velocity BPA

• Website: velobpa.com
• GitHub: Velocity-BPA

Licensing

This n8n community node is licensed under the Business Source License 1.1.

Free Use

Permitted for personal, educational, research, and internal business use.

Commercial Use

Use of this node within any SaaS, PaaS, hosted platform, managed service, or paid automation offering requires a commercial license.

For licensing inquiries: [email protected]

See LICENSE, COMMERCIAL_LICENSE.md, and LICENSING_FAQ.md for details.

Contributing

Contributions are welcome! Please ensure:

1. Code follows the existing style
2. Tests are included for new features
3. Documentation is updated
4. Licensing headers are included in new files

Support

For issues and feature requests, please use the GitHub Issues page.

Acknowledgments

• Avalanche - Blockchain platform
• n8n - Workflow automation platform
• ethers.js - Ethereum library
• Snowtrace - Block explorer API