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Multi-Chain Support

HashNut supports 164+ blockchain networks, enabling merchants to accept payments across the entire Web3 ecosystem through a unified API.

Supported Networks​

EVM-Compatible Chains (150+)​

Popular EVM Chains:

  • Ethereum (Mainnet & Testnets)
  • Polygon (Mainnet & Mumbai)
  • Binance Smart Chain (BSC)
  • Arbitrum One
  • Optimism
  • Base
  • Avalanche C-Chain
  • Fantom
  • And 140+ more...

TRON Network​

TRON Support:

  • TRON Mainnet
  • TRON Testnet (Shasta)
  • TRC-20 tokens (USDT, USDC, etc.)

Other Networks (12+)​

Unified API Interface​

Key Benefit: Use the same API for all chains - no chain-specific code needed!

Chain Codes​

Each chain is identified by a unique chainCode:

Chain TypechainCode FormatExamples
EVM ERC-20erc20, {chain}-erc20erc20, polygon-erc20, bsc-erc20
TRON TRC-20tron-trc20tron-trc20

Common Chain Codes​

// Ethereum
chainCode: "erc20"

// Polygon
chainCode: "polygon-erc20"

// Binance Smart Chain
chainCode: "bsc-erc20"

// TRON
chainCode: "tron-trc20"

Chain Selection​

Querying Supported Chains​

// Query all supported chains
const response = await fetch(
  'https://testnet.hashnut.io/api/v2.0.0/config/queryAllChainInfo',
  { method: 'POST' }
);

const chains = await response.json();
// Returns array of all supported chains with details

Response includes:

  • Chain name and code
  • Network ID (chainId)
  • Confirmation requirements
  • WalletConnect support
  • Bridge server addresses

Querying Supported Tokens​

// Query tokens for a specific chain
const response = await fetch(
  'https://testnet.hashnut.io/api/v2.0.0/config/querySupportCoinsByChainCode',
  {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ chainCode: 'erc20' })
  }
);

const tokens = await response.json();
// Returns all supported tokens for that chain

Multi-Chain Payment Flow​

Chain-Specific Features​

EVM Chains​

Features:

  • ERC-20 token support
  • WalletConnect protocol
  • EIP-712 signature support
  • EIP-1559 fee support
  • MetaMask integration

Wallet Support:

  • MetaMask
  • WalletConnect
  • imToken
  • Trust Wallet
  • Token Pocket

TRON Network​

Features:

  • TRC-20 token support
  • TronLink integration
  • Native TRX support
  • TRON-specific optimizations

Wallet Support:

  • TronLink (Extension & Mobile)
  • TronLink Pro

Network Configuration​

Chain-Specific Settings​

Each chain has configurable settings:

Configurable Per Chain:

  • Confirmation Requirements: Number of block confirmations needed
  • Gas Settings: EIP-1559 support, gas limits
  • WalletConnect: Bridge server addresses
  • EIP-712: Chain ID for signature verification

Cross-Chain Considerations​

Separate Accounts Per Chain​

Important: Each chain requires a separate account/smart contract deployment.

Unified Reporting​

Despite separate accounts, HashNut provides:

  • Unified Dashboard: View all chains in one place
  • Cross-Chain Analytics: Aggregate reporting across chains
  • Unified API: Same API for all chains

Token Support​

Standard Tokens​

All Chains Support:

  • USDT (Tether)
  • USDC (USD Coin)

Chain-Specific:

  • Ethereum: Native ETH + ERC-20 tokens
  • Polygon: Native MATIC + ERC-20 tokens
  • BSC: Native BNB + BEP-20 tokens
  • TRON: Native TRX + TRC-20 tokens

Adding New Tokens​

Best Practices​

Choosing the Right Chain​

  1. Consider Transaction Costs:

    • Polygon: Low fees, fast confirmations
    • Ethereum: Higher fees, maximum security
    • BSC: Moderate fees, good performance
    • TRON: Very low fees, fast confirmations

  2. Consider User Base:

    • Which chains do your customers use?
    • Which wallets are most common?
    • Regional preferences

  3. Consider Token Availability:

    • USDT/USDC available on all chains
    • Some tokens chain-specific

Multi-Chain Strategy​

Recommended Approach:

  • Choose a primary chain for most transactions
  • Add secondary chains based on user demand
  • Monitor performance across chains
  • Optimize based on fees and speed

Network Status​

HashNut monitors all supported chains for:

  • Network uptime
  • Transaction confirmation times
  • Gas price trends
  • Token availability

Next Steps​

Ready to accept payments on multiple chains? Check out Getting Started →