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.
- Visit Quicknode'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.
| 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 | https://arbiscan.io/ | Ethereum | Nitro (Rollup) | wss://arb1.arbitrum.io/feed | https://arb1-sequencer.arbitrum.io/rpc |
| Arbitrum Nova | https://nova.arbitrum.io/rpc | 42170 | https://nova.arbiscan.io/ | Ethereum | Nitro (AnyTrust) | wss://nova.arbitrum.io/feed | https://nova-sequencer.arbitrum.io/rpc |
| Arbitrum Sepolia (Testnet) | https://sepolia-rollup.arbitrum.io/rpc | 421614 | https://sepolia.arbiscan.io | 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 | ✅ | ✅ | ✅ | ||
| Ankr | ✅ | ✅ | Available on paid plans | ||
| Blast | ✅ | ✅ | ✅ | ||
| BlockPi | ✅ | ✅ | |||
| BlockVision | ✅ | ||||
| Chainbase | ✅ | ✅ | |||
| Chainnodes | ✅ | ||||
| Chainstack | ✅ | ✅ | Available on paid plans | ||
| DataHub | ✅ | ||||
| DRPC | ✅ | ✅ | ✅ | ||
| GetBlock | ✅ | ✅ | |||
| Infura | ✅ | ✅ | ✅ | Enabled on request | |
| Lava | ✅ | ✅ | |||
| Moralis | ✅ | ||||
| Nirvana Labs | ✅ | ✅ | ✅ | ✅ | |
| NodeReal | ✅ | ✅ | |||
| NOWNodes | ✅ | ||||
| Pocket Network | ✅ | ||||
| Quicknode | ✅ | ✅ | ✅ | ✅ | Testnet supported in free tier |
| Unifra | ✅ | ||||
| Tenderly | ✅ | ✅ | ✅ | ✅ | Testnet supported in free tier |