Supported chains

Chains supported via WaaP SDK

WaaP SDK supports all EVM chains. dApps integrating with WaaP SDK can add custom chains according to EIP 3085  via wallet_addEthereumChain.

Add Custom Chain

try {
  await window.waap.request({
    method: 'wallet_addEthereumChain',
    params: [{
      chainId: '0x89', // 137 in hex
      chainName: 'Polygon Mainnet',
      nativeCurrency: {
        name: 'MATIC',
        symbol: 'MATIC',
        decimals: 18
      },
      rpcUrls: ['https://polygon-rpc.com/'],
      blockExplorerUrls: ['https://polygonscan.com/']
    }]
  });
} catch (error) {
  console.error('Failed to add chain:', error);
}

Switch Chain

To switch to a different chain, use wallet_switchEthereumChain:

try {
  await window.waap.request({
    method: 'wallet_switchEthereumChain',
    params: [{ chainId: '0x89' }], // chainId must be in hexadecimal numbers
  });
} catch (error) {
  console.error('Failed to switch chain:', error);
}

Chains supported on WaaP.xyz

Mainnets:

• Ethereum (1)
• Optimism (10)
• Gnosis Chain (100)
• Polygon (137)
• Fantom (250)
• zkSync (324)
• Shape (360)
• Base (8453)
• Arbitrum One (42161)
• Celo (42220)
• Avalanche (43114)
• Linea (59144)
• Scroll (534352)
• Aurora (1313161554) Note: Limited support

Testnets:

• Ethereum Sepolia (11155111)
• Optimism Sepolia (11155420)
• Base Sepolia (84532)
• Polygon Amoy (80002)
• Optimism Goerli (420)

Related

• Methods — wallet_switchEthereumChain and wallet_addEthereumChain reference
• Send Transactions — Sending transactions on different chains
• Gas Tank — Gas sponsorship across supported chains