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Ethers.js is a standalone TypeScript/JavaScript library for interacting with the Ethereum blockchain and its ecosystem. To connect to a network through Node RPC using ethers v6 or v5, use the JSON-RPC provider backed by HTTPS or WebSockets.

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Using JsonRpcProvider (ethers v6 and v5)

ethers-6/json-rpc-provider.ts
// Installation Instructions: https://docs.ethers.io/v6/getting-started
import { ethers } from "ethers";

const RPC_URL = `https://mainnet.gateway.tenderly.co/${process.env.TENDERLY_NODE_ACCESS_KEY}`

async function executeMethod() {
  // Initialize an ethers provider instance
  const provider = new ethers.JsonRpcProvider(RPC_URL);

  const blockNumber = await provider.getBlockNumber();

  console.log(blockNumber);
}

await executeMethod();
Once connected, call any standard eth_* method or a Tenderly extension like tenderly_simulateTransaction through the provider. See the full JSON-RPC reference for every supported method and network.

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Using WebSocket provider

ethers-6/wss-provider.ts
// Installation Instructions: https://docs.ethers.io/v6/getting-started
import { ethers } from "ethers";

const RPC_URL_WSS = `wss://mainnet.gateway.tenderly.co/${process.env.TENDERLY_NODE_ACCESS_KEY}`

async function executeMethod() {
  // Initialize an ethers provider instance
  const provider = new ethers.WebSocketProvider(RPC_URL_WSS);

  const blockNumber = await provider.getBlockNumber();

  console.log(blockNumber);
}

await executeMethod();