# Config

### eth\_coinbase <a href="#eth_coinbase" id="eth_coinbase"></a>

Returns the client coinbase address.

**Parameters**

None

**Return Value**

| Type         | Description                   |
| ------------ | ----------------------------- |
| 20-byte DATA | The current coinbase address. |

**Example**

```shell
// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": "0xc94770007dda54cF92009BFF0dE90c06F603a09f"
}
```

### eth\_etherbase <a href="#eth_etherbase" id="eth_etherbase"></a>

Returns the client etherbase address.

**Parameters**

None

**Return Value**

| Type         | Description                    |
| ------------ | ------------------------------ |
| 20-byte DATA | The current etherbase address. |

**Example**

```shell
// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_etherbase","params":[],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": "0xc94770007dda54cF92009BFF0dE90c06F603a09f"
}
```

### eth\_chainId <a href="#eth_chainid" id="eth_chainid"></a>

Return current chainId set on the requested node.

**Parameters**

None

**Return Value**

| Type     | Description                         |
| -------- | ----------------------------------- |
| QUANTITY | Chain id set on the requested node. |

**Example**

```shell
// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": "0x2019"
}
```

### eth\_gasPrice <a href="#eth_gasprice" id="eth_gasprice"></a>

Returns the current price per gas in peb.

**NOTE**: This API has different behavior from Ethereum's and returns a gas price of Klaytn instead of suggesting a gas price as in Ethereum.

**Parameters**

None

**Return Value**

| Type     | Description                              |
| -------- | ---------------------------------------- |
| QUANTITY | Integer of the current gas price in peb. |

**Example**

```shell
// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": "0xAE9F7BCC00" // 250,000,000,000 peb = 250 ston (Gwei)
}
```