TypeScript networks - Polygon Developer Docs

Wallet, signing, and explicit indexer calls accept the SDK’s closed Network type. Use a value from Networks or a successful lookup. Object literals and arbitrary chain IDs are not valid Network values.

Use the network registry

import {
  Networks,
  findNetworkById,
  findNetworkByName,
  type Network,
} from '@polygonlabs/oms-wallet'

const amoy: Network = Networks.amoy
const byId = findNetworkById(80002)
const byName = findNetworkByName('amoy')

console.log(amoy.id, amoy.displayName, amoy.nativeTokenSymbol)
console.log(byId === amoy, byName === amoy)

findNetworkById returns Network | undefined for an exact numeric chain ID. findNetworkByName trims the input, compares registry slugs without case sensitivity, and returns Network | undefined. Names such as base-sepolia are registry slugs, not display names. Each Network has id, name, displayName, nativeTokenSymbol, and explorerUrl.

Supported networks

The installed SDK build defines these registry entries:

Registry value	Chain ID	Display name	Native token
`Networks.mainnet`	1	Ethereum	ETH
`Networks.sepolia`	11155111	Sepolia	ETH
`Networks.polygon`	137	Polygon	POL
`Networks.amoy`	80002	Polygon Amoy	POL
`Networks.arbitrum`	42161	Arbitrum	ETH
`Networks.arbitrumSepolia`	421614	Arbitrum Sepolia	ETH
`Networks.optimism`	10	Optimism	ETH
`Networks.optimismSepolia`	11155420	Optimism Sepolia	ETH
`Networks.base`	8453	Base	ETH
`Networks.baseSepolia`	84532	Base Sepolia	ETH
`Networks.bsc`	56	BSC	BNB
`Networks.bscTestnet`	97	BSC Testnet	BNB
`Networks.arbitrumNova`	42170	Arbitrum Nova	ETH
`Networks.avalanche`	43114	Avalanche	AVAX
`Networks.avalancheTestnet`	43113	Avalanche Testnet	AVAX
`Networks.katana`	747474	Katana	ETH

Use Object.values(Networks) when a selector or integration needs the complete registry. The registry is fixed by the installed package version; there is no public API for adding a custom network.

API reference

Use these workflow pages for behavior, defaults, and decision points. For exhaustive exported signatures and type fields, see the TypeScript API reference. The reference is appropriate for method overloads and public type shapes. Keep the workflow distinctions from these pages in application design: the wallet client is stateful, the indexer is independent, manual auth is pending until activation, and transaction status can remain uncertain after execution.

​Use the network registry

​Supported networks

​API reference

Use the network registry

Supported networks

API reference