Swift networks - Polygon Developer Docs

Wallet and indexer methods accept the fixed Network registry. The Swift SDK does not accept caller-defined network objects.

Look up a network

Use enum values in application code and lookup helpers when converting stored chain IDs or names.

let amoy = Network.polygonAmoy
let byChainId = Network.findById(80002)
let byName = Network.findByName("amoy")

print(amoy.id)                 // 80002
print(amoy.chainId)            // "80002"
print(amoy.nativeTokenSymbol)  // "POL"
print(amoy.explorerURL)

findById(_:) and findByName(_:) return nil outside the registry. Names are case-insensitive and trimmed. polygonamoy is accepted as an additional lookup spelling, and .amoy is an alias for .polygonAmoy.

Supported registry values

Value	Name	Chain ID
`.mainnet`	`mainnet`	1
`.sepolia`	`sepolia`	11155111
`.polygon`	`polygon`	137
`.polygonAmoy`	`amoy`	80002
`.arbitrum`	`arbitrum`	42161
`.arbitrumSepolia`	`arbitrum-sepolia`	421614
`.optimism`	`optimism`	10
`.optimismSepolia`	`optimism-sepolia`	11155420
`.base`	`base`	8453
`.baseSepolia`	`base-sepolia`	84532
`.bsc`	`bsc`	56
`.bscTestnet`	`bsc-testnet`	97
`.arbitrumNova`	`arbitrum-nova`	42170
`.avalanche`	`avalanche`	43114
`.avalancheTestnet`	`avalanche-testnet`	43113
`.katana`	`katana`	747474

Network.supportedNetworks returns these values in registry order. Each value also provides displayName, nativeTokenSymbol, explorerUrl, and explorerURL.

Public API reference

Use the Swift API reference for exhaustive declarations, model fields, error codes, and operation names.

​Look up a network

​Supported registry values

​Public API reference

Look up a network

Supported registry values

Public API reference