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RPC endpoints and providers

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Arbitrum public RPC endpoints

This section provides an overview of the available public RPC endpoints for different Arbitrum chains and necessary details to interact with them.

NameRPC Url(s)Chain IDBlock explorerUnderlying chainTech stackSequencer feed URLSequencer endpoint⚠️
Arbitrum Onehttps://arb1.arbitrum.io/rpc42161https://arbiscan.io/EthereumNitro (Rollup)wss://arb1.arbitrum.io/feedhttps://arb1-sequencer.arbitrum.io/rpc
Arbitrum Novahttps://nova.arbitrum.io/rpc42170https://nova.arbiscan.io/EthereumNitro (AnyTrust)wss://nova.arbitrum.io/feedhttps://nova-sequencer.arbitrum.io/rpc
Arbitrum Sepolia (Testnet)https://sepolia-rollup.arbitrum.io/rpc421614https://sepolia.arbiscan.ioSepoliaNitro (Rollup)wss://sepolia-rollup.arbitrum.io/feedhttps://sepolia-rollup-sequencer.arbitrum.io/rpc
caution
  • Unlike the RPC Urls, the Sequencer endpoints only support eth_sendRawTransaction and eth_sendRawTransactionConditional calls.
  • Arbitrum public RPCs do not provide Websocket support.
  • Stylus testnet (v1) has been deprecated, but you can still find its information in Stylus testnet information.
  • Stylus testnet (v2) has been deprecated, but you can still find its information in Stylus testnet information.
  • Visit Quicknode's Arbitrum Sepolia faucet for testnet Sepolia tokens on L2.
More RPC endpoints

More Arbitrum chain RPC endpoints can be found in Chain Connect: Arbitrum One and Arbitrum Nova.

Third-party RPC providers

Alternatively, to interact with public Arbitrum chains, you can rely on many of the same popular node providers that you are already using on Ethereum:

ProviderArb One?Arb Nova?Arb Sepolia?Websocket?
1RPC
Alchemy
Allnodes
Ankr
Blast
BlockPi
BlockVision
Chainbase
Chainnodes
Chainstack
DataHub
DRPC
GetBlock
Infura
Lava
Moralis
Nirvana Labs
NodeReal
NOWNodes
Pocket Network
Quicknode
Unifra