# web3_clientVersion - Etherlink RPC Method

Returns the current client software version string for your Etherlink node, including the client name, version number, OS, and runtime.

## When to Use This Method

Read the running client version. The captured value identifies Octez EVM node 0.66.

## Request Parameters

This method accepts no parameters.

## Request Example

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "web3_clientVersion",
  "params": []
}
```

## Response Fields

This method returns no documented fields.

## Successful Response

```json
{
  "jsonrpc": "2.0",
  "result": "octez-evm-node/octez-evm-node 0.66 (build: 0)-9cfabac8/Unix/ocamlc.5.3.0",
  "id": 1
}
```

## Code Examples

```bash
curl -X POST "https://api-etherlink-mainnet.n.dwellir.com/YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  --data-raw '{"jsonrpc":"2.0","id":1,"method":"web3_clientVersion","params":[]}'
```

## Best Practices

Keep the recorded block height and address together when reproducing a historical example. Preserve RPC errors instead of replacing them with empty results.