HyperEVM Testnet RPC Guide

Overview

To enhance the HyperEVM developer experience we are providing free public access to our professionally hosted Testnet RPC endpoint. Developers can use this to build Hyperliquid applications and as a testnet RPC endpoint in the browser wallet. For mainnet deployments, see available mainnet RPC urls on the Hyperliquid docs.

RPC Endpoint Details

• Network Name: HyperEVM Testnet
• RPC URL: https://rpcs.chain.link/hyperevm/testnet
• Chain ID: 998
• Currency Symbol: HYPE
• Block Explorer URL (Optional): https://testnet.purrsec.com/

IMPORTANT: We are seeking approval to host this at https://rpcs.chain.link/hyperevm/testnet

For Developers: Building with the RPC

You can use this endpoint in your dApps, scripts, or backend services with any standard Web3 library.

Ethers.js (JavaScript/TypeScript)

import { ethers } from "ethers"

const rpcUrl = "https://rpcs.chain.link/hyperevm/testnet"
const provider = new ethers.JsonRpcProvider(rpcUrl)

async function getBlock() {
  const blockNumber = await provider.getBlockNumber()
  console.log("Current Block Number:", blockNumber)
}

getBlock()

Web3.js (JavaScript/TypeScript)

import Web3 from "web3"

const rpcUrl = "https://rpcs.chain.link/hyperevm/testnet"
const web3 = new Web3(new Web3.providers.HttpProvider(rpcUrl))

async function getBlock() {
  const blockNumber = await web3.eth.getBlockNumber()
  console.log("Current Block Number:", blockNumber)
}

getBlock()

Web3.py (Python)

from web3 import Web3

rpc_url =  "https://rpcs.chain.link/hyperevm/testnet"
w3 = Web3(Web3.HTTPProvider(rpc_url))

if w3.is_connected():
    print("Connected to RPC!")
    block_number = w3.eth.block_number
    print("Current Block Number:", block_number)
else:
    print("Failed to connect.")

cURL (Testing)

curl -X POST -H "Content-Type: application/json" \
     --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' \
      https://rpcs.chain.link/hyperevm/testnet

Expected Response:

{ "jsonrpc": "2.0", "id": 1, "result": "0x1f92031" }

For Users: Adding to Your Wallet

You can easily add this network to browser extension wallets like MetaMask or Rabby.

Using MetaMask

1. Open your MetaMask wallet.
2. Click the network selection dropdown at the top left.
3. Click "Add network".
4. At the bottom, select "Add a network manually".
5. Fill in the form with the network details:
   • Network Name: HyperEVM Testnet
   • RPC URL: https://rpcs.chain.link/hyperevm/testnet
   • Chain ID: 998
   • Currency Symbol: HYPE
   • Block Explorer URL (Optional): https://testnet.purrsec.com/
6. Click "Save".

Using Rabby

1. Click on the “More” button, find “Add Custom Network” .
2. Press "Add Custom Network", or the edit button if editing an existing connection
3. Fill in the network details:
   • Network Name: HyperEVM Testnet
   • RPC URL: https://rpcs.chain.link/hyperevm/testnet
   • Chain ID: 998
   • Currency Symbol: HYPE
   • Block Explorer URL (Optional): https://testnet.purrsec.com/
4. Click "Confirm."

Supported JSON-RPC Methods

The following HyperEVM specific endpoints are available:

Rate Limits

1,000 requests per IP 5 minute moving window.