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RPC endpoints and providers

Arbitrum public RPC endpoints​

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 testnets v1 and v2 have been spun down and are not accesible anymore.
  • Visit Quicknode's Arbitrum Sepolia faucet or Alchemy's Arbitrum sepolia faucet for testnet Sepolia tokens on L2.

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
More RPC endpoints

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

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:

Third-party RPC providers​

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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✅
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