POST
/
evm
web3_clientVersion
curl --request POST \
  --url https://hyperliquid-mainnet.core.chainstack.com/4f8d8f4040bdacd1577bff8058438274/evm \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "method": "web3_clientVersion",
  "params": [],
  "id": 1
}'
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "HyperEVM/v1.0.0"
}
Returns the current client version for the Hyperliquid EVM. Use this to identify the client implementation and version.
Get your own node endpoint todayStart for free and get your app to production levels immediately. No credit card required.You can sign up with your GitHub, X, Google, or Microsoft account.

​
Parameters

This method takes no parameters.

​
Returns

Returns the client version as a string (e.g., “HyperEVM/v1.0.0”).

​
JavaScript example

const getClientVersion = async () => {
  const response = await fetch('https://hyperliquid-mainnet.core.chainstack.com/YOUR_API_KEY/evm', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      jsonrpc: '2.0',
      method: 'web3_clientVersion',
      params: [],
      id: 1
    })
  });
  
  const data = await response.json();
  return data.result;
};

// Usage
const clientVersion = await getClientVersion();
console.log('Client version:', clientVersion); // "HyperEVM/v1.0.0"

// Parse version information
const [clientName, version] = clientVersion.split('/');
console.log('Client:', clientName); // "HyperEVM"
console.log('Version:', version); // "v1.0.0"

​
Version checking

const checkClientCompatibility = async (minVersion) => {
  const clientVersion = await getClientVersion();
  
  // Extract version number (assuming format like "HyperEVM/v1.2.3")
  const versionMatch = clientVersion.match(/v(\d+\.\d+\.\d+)/);
  if (!versionMatch) {
    console.warn('Could not parse client version:', clientVersion);
    return false;
  }
  
  const currentVersion = versionMatch[1];
  console.log(`Client version: ${currentVersion}, Required: ${minVersion}`);
  
  // Simple version comparison (for production, use a proper semver library)
  return currentVersion >= minVersion;
};

// Usage
const isCompatible = await checkClientCompatibility('1.0.0');
if (!isCompatible) {
  console.error('Client version not supported');
}

​
Use cases

  • Client identification — Identify the specific client implementation and version
  • Compatibility checking — Verify compatibility with specific client features
  • Debug information — Gather client information for troubleshooting
  • Development tools — Build tools that adapt to different client implementations

Body

application/json

Response

200 - application/json

Successful response with client version information

The response is of type object.