# WETH

### /getbalance

Get the balance or number of WETH in the requested public address. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

<mark style="color:blue;">`GET`</mark> `https://api.expand.network/weth/getbalance`

#### Query Parameters

| Name                                      | Type   | Description                                                  |
| ----------------------------------------- | ------ | ------------------------------------------------------------ |
| rpc                                       | String | Remote procedural call URL                                   |
| chainId                                   | String | Refer to the [Chain ID ](/ids/chain-ids.md)page for details. |
| chainSymbol                               | String | Refer to the [Chain ID ](/ids/chain-ids.md)page for details. |
| address<mark style="color:red;">\*</mark> | String | The public address to get the balance of.                    |

{% tabs %}
{% tab title="Sample Request" %}

```url
https://api.expand.network/weth/getbalance/?address=0x6Fb447Ae94F5180254D436A693907a1f57696900
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "balance": "25690185796757697"
    }
}
```

{% endtab %}
{% endtabs %}

### /historical/logs

Retrieves all the logs for WETH events specified in query in the given block range.

<mark style="color:blue;">`GET`</mark> `https://api.expand.network/weth/historical/logs`

#### Query Parameters

| Name                                   | Type   | Description                                                           |
| -------------------------------------- | ------ | --------------------------------------------------------------------- |
| chainId                                | String | Refer to the [Chain ID](/ids/chain-ids.md) page for details.          |
| chainSymbol                            | String | Refer to the [Chain ID](/ids/chain-ids.md) page for details.          |
| startBlock                             | String | <p>Starting block of the range.</p><p>by default latestBlock -100</p> |
| endBlock                               | String | <p>Last block of the range.</p><p>by default its latestBlock</p>      |
| type<mark style="color:red;">\*</mark> | String | Deposit/Withdrawal                                                    |

{% tabs %}
{% tab title="Sample Request" %}

```url
https://api.expand.network/weth/historical/logs?type=Deposit
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "logs": [
            {
                "address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
                "topics": [
                    "0xe1fffcc4923d04b559f4d29a8bfc6cda04eb5b0d3c460751c2402c5c5cc9109c",
                    "0x0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d"
                ],
                "params": {
                    "dst": "0x7a250d5630b4cf539739df2c5dacb4c659f2488d",
                    "wad": "100000000000000000"
                },
                "data": "0x000000000000000000000000000000000000000000000000016345785d8a0000",
                "blockNumber": "17320569",
                "blockHash": "0xcbc13d3439e115dcb6203a45d82da137b7f546286224f29248192a7e428e29d6",
                "timeStamp": "1684828271",
                "gasPrice": "101893509354",
                "gasUsed": "142805",
                "logIndex": "0",
                "transactionHash": "0xa36d80f70960af4a7f67145670e589795edd3fda2c3334eb7c6fce962f06d99e",
                "transactionIndex": "4"
            }
        ]
    }
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.expand.network/integrations/fungible-tokens/weth.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.