Endpoint
arb1.arbitrum.io
A public Arbitrum One RPC endpoint operated by arbitrum. It answered when we last checked.
https://arb1.arbitrum.io/rpcLast check
- Status
- Answered134 ms
- Checked at
- 2026-08-25 23:59:19 UTC
- Block height reported
- 498,399,198
- Transport
- HTTP JSON-RPC
One request from one machine, twice an hour. Not a latency measurement — see methodology.
Network
- Network
- Arbitrum One (mainnet)
- Chain ID
- 42161
- Currency
- ETH
Your wallet will show you the chain ID and endpoint before adding anything.
Other endpoints that work
Ordered by what answered, so a replacement is one click away.
- https://arbitrum-one-rpc.publicnode.comAnswered28 ms
- https://rpcfree.com/arbitrum-rpcNot JSON-RPC
- wss://arbitrum-one-rpc.publicnode.comNot checked