Node RPC

RPC Reference

Optimistic Sepolia

Optimistic Sepolia

Connect to the Optimistic Sepolia network (chain ID: 11155420) via HTTP or WebSocket protocols.

HTTP

To send request to Node RPC via an HTTP connection, initialize your client using the following URL. The access token is automatically appended to the URL when you copy it from the Dashboard.

https://optimism-sepolia.gateway.tenderly.co/$TENDERLY_NODE_ACCESS_KEY

WebSocket

WebSockets let your app instantly get updates about transactions and blocks from Node RPC, without having to keep asking for the latest data. This way, your app finds out about changes on the blockchain faster and more efficiently.

Connect your dapp to Node RPC using this URL:

wss://optimism-sepolia.gateway.tenderly.co/$TENDERLY_NODE_ACCESS_KEY

Integrations

Connect to the Optimistic Sepolia through Node RPC using popular libraries. See all integration guides.

Optimistic Ethereum

Polygon