RPC endpoints and providers
Arbitrum public RPC endpoints
caution
- Unlike the RPC Urls, the Sequencer endpoints only support
eth_sendRawTransactionandeth_sendRawTransactionConditionalcalls. - Arbitrum public RPCs do not provide Websocket support.
- IPv6 is not supported.
This section provides an overview of the available public RPC endpoints for different Arbitrum chains and necessary details to interact with them.
| Name | RPC Url(s) | Chain ID | Block explorer | Underlying chain | Tech stack | Sequencer feed URL | Sequencer endpoint⚠️ |
|---|---|---|---|---|---|---|---|
| Arbitrum One | https://arb1.arbitrum.io/rpc | 42161 | Arbiscan, Blockscout | Ethereum | Nitro (Rollup) | wss://arb1-feed.arbitrum.io/feed | https://arb1-sequencer.arbitrum.io/rpc |
| Arbitrum Nova | https://nova.arbitrum.io/rpc | 42170 | Blockscout | Ethereum | Nitro (AnyTrust) | wss://nova-feed.arbitrum.io/feed | https://nova-sequencer.arbitrum.io/rpc |
| Arbitrum Sepolia (Testnet) | https://sepolia-rollup.arbitrum.io/rpc | 421614 | Arbiscan, Blockscout | Sepolia | Nitro (Rollup) | wss://sepolia-rollup.arbitrum.io/feed | https://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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| Provider | Arb One? | Arb Nova? | Arb Sepolia? | Websocket? | Stylus Tracing? |
|---|---|---|---|---|---|
| 1RPC | ✅ | ||||
| Alchemy | ✅ | ✅ | ✅ | Available on paid plans | |
| Allnodes | ✅ | ✅ | ✅ | ||
| All That Node | ✅ | ✅ | ✅ | ||
| Ankr | ✅ | ✅ | Available on paid plans | ||
| BlockPi | ✅ | ✅ | |||
| Chainbase | ✅ | ✅ | |||
| Chainnodes | ✅ | ||||
| Chainstack | ✅ | ✅ | Available on paid plans | ||
| dRPC | ✅ | ✅ | ✅ | ✅ | |
| GetBlock | ✅ | ✅ | |||
| Infura | ✅ | ✅ | ✅ | Enabled on request | |
| Lava | ✅ | ✅ | |||
| Moralis | ✅ | ||||
| Nirvana Labs | ✅ | ✅ | ✅ | ✅ | |
| NodeReal | ✅ | ✅ | |||
| NOWNodes | ✅ | ||||
| Pocket Network | ✅ | ||||
| PublicNode | ✅ | ✅ | ✅ | ||
| Quicknode | ✅ | ✅ | ✅ | ✅ | Testnet supported in free tier |
| Tenderly | ✅ | ✅ | ✅ | Testnet supported in free tier | |
| Unifra | ✅ | ||||
| Validation Cloud | ✅ | ✅ | ✅ | Testnet supported in free tier |