Choose a network

Use one of these endpoints as your Arbitrum client provider.

Deprecation warning

The Arbitrum Rinkeby testnet is deprecated from the chainRPC API.We recommend users migrate to Arbitrum Goerli to test deployments.Ensure that you replace API-KEY with an API key from your chainRPC dashboard. You must enable the Arbitrum network add-on to use the endpoints.

Network	Description	URL
Arbitrum Mainnet	JSON-RPC over HTTPS	https://arb.chainrpc.io/v3/API-KEY