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Supported networks

Use one of these endpoints as your Arbitrum client provider.

Ensure that you replace YOUR-API-KEY with an API key from your Infura dashboard.

NetworkDescriptionURL
MainnetJSON-RPC over HTTPShttps://arbitrum-mainnet.infura.io/v3/<API-KEY>
MainnetJSON-RPC over Websocketwss://arbitrum-mainnet.io/ws/v3/<API-KEY>
Testnet (Sepolia)JSON-RPC over HTTPShttps://arbitrum-sepolia.infura.io/v3/<API-KEY>
Testnet (Sepolia)JSON-RPC over WebSocketwss://arbitrum-sepolia.infura.io/ws/v3/<API-KEY>