Endpoint
sepolia.optimism.io
A public OP Sepolia Testnet RPC endpoint operated by optimism. It answered when we last checked.
https://sepolia.optimism.ioLast check
- Status
- Answered41 ms
- Checked at
- 2026-08-25 23:59:19 UTC
- Block height reported
- 47,949,819
- Transport
- HTTP JSON-RPC
One request from one machine, twice an hour. Not a latency measurement — see methodology.
Network
- Network
- OP Sepolia Testnet (testnet)
- Chain ID
- 11155420
- 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://optimism-sepolia.drpc.orgAnswered56 ms
- wss://optimism-sepolia.drpc.orgNot checked