# Base

### /getbalance

## Get the balance or number of the given token in the requested public address.

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

#### Query Parameters

| Name                                      | Type   | Description                                                                                          |
| ----------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                       | String | Remote procedural call URL                                                                           |
| chainId<mark style="color:red;">\*</mark> | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                               | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| address<mark style="color:red;">\*</mark> | String | The public address to get the balance of.                                                            |
| tokenAddress                              | String | The address of token to get the balance of.                                                          |

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

```url
https://api.expand.network/chain/getbalance?address=0xf8fdd0c01e286e1f692f1581e155bafe4896ef17&chainId=8453
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "balance": "7710580086784116"
    }
}
```

{% endtab %}
{% endtabs %}

### /getblock

## Get details of a block.

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

#### Query Parameters

| Name                                          | Type   | Description                                                                                          |
| --------------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                           | String | Remote procedural call URL.                                                                          |
| chainId<mark style="color:red;">\*</mark>     | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                                   | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| blockNumber<mark style="color:red;">\*</mark> | String | The block number or block hash.                                                                      |

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

```url
https://api.expand.network/chain/getblock?chainId=8453&blockNumber=6283173
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "difficulty": "0",
        "gasLimit": 30000000,
        "gasUsed": 918397,
        "hash": "0x97250c54e310eb29a30b7ab4184b1cce9e466e7063b5590d52b73709e0bb230e",
        "miner": "0x4200000000000000000000000000000000000011",
        "nonce": "0x0000000000000000",
        "number": 6283173,
        "parentHash": "0xed86a845409a882270d4512487b7dafdfe91157da6d1e6c50d738de5a4a3ae92",
        "size": 4031,
        "timestamp": 1699355693,
        "totalDifficulty": "0",
        "transactions": [
            "0xefd80cb6f1e2b08a00ae403b9c07db6722c9dd7e98498c7e8e658a20c28f9b44",
            "0x56bda2ad97b7dc3609c97a5bfff3837d3b5394104d28d16c9e7a58b6d87dfb89",
            "0x88b6a08eea996e17dc67d917fde9cb4286163ee40a1a93a72458f88d0dde6535",
            "0xf9e572807b753ee98330eb84b7db4b6c5a14bcbb9966dd11e08b0af73a52b280",
            "0x43996c7f898e15d08d2157a0d4ed856a92c073c3c4752c95ae0f1cd8f3698a8f",
            "0x73d955224527330ef12cac53196ae3708a0d8feef0184474266c3a6078205e35"
        ],
        "transactionsRoot": "0xb5bde09f63711b915471936e273ed18b8dc7d6038ce053fe629ae82a66133bff",
        "uncles": []
    }
}
```

{% endtab %}
{% endtabs %}

### /getgasprice

## Get the current gas price from the network.

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

#### Query Parameters

| Name                                      | Type   | Description                                                                                          |
| ----------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                       | String | Remote procedural call URL.                                                                          |
| chainId<mark style="color:red;">\*</mark> | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                               | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |

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

```url
https://api.expand.network/chain/getgasprice?chainId=8453
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "gasPrice": "100000061"
    }
}
```

{% endtab %}
{% endtabs %}

### /getstorage

## Get data stored in the given slot.

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

#### Query Parameters

| Name                                      | Type   | Description                                                                                          |
| ----------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                       | String | Remote procedural call URL.                                                                          |
| chainId<mark style="color:red;">\*</mark> | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                               | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| address<mark style="color:red;">\*</mark> | String | Contract address whose storage is needed.                                                            |
| index                                     | String | Slot index on the smart contract. By default,  it is taken as 0.                                     |

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

```url
https://api.expand.network/chain/getstorage?chainId=8453&address=0xCA6f5B49967B492FEE81cA9C92a63a98903DD965
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "data": "0x0000000000000000000000007dbc67df4d4ea21420b1baa077028d2c1cca7399"
    }
}
```

{% endtab %}
{% endtabs %}

### /gettransaction

## Get details of a transaction.

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

#### Query Parameters

| Name                                              | Type   | Description                                                                                          |
| ------------------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                               | String | Remote procedural call URL.                                                                          |
| chainId<mark style="color:red;">\*</mark>         | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                                       | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| transactionHash<mark style="color:red;">\*</mark> | String | The transaction hash.                                                                                |

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

```url
https://api.expand.network/chain/gettransaction?chainId=8453&transactionHash=0xcf15634c154cb70b8e02268eedd58d4949312414f796ca3296eebe07dc94ffb4
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "hash": "0xcf15634c154cb70b8e02268eedd58d4949312414f796ca3296eebe07dc94ffb4",
        "transactionStatus": true,
        "blockNumber": "6283395",
        "timestamp": null,
        "from": "0x2c40a57BC2E05eBcd00C2c007097f838c7b3a115",
        "to": "0x10d16248bED1E0D0c7cF94fFD99A50c336c7Bcdc",
        "value": "264853642455711",
        "transactionFees": "27221958120",
        "gas": "545832",
        "gasPrice": "58632",
        "input": "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",
        "nonce": 7,
        "network": null
    }
}
```

{% endtab %}
{% endtabs %}

### /portfolio

## Get detailed information about the verified assets or tokens currently associated with a user's wallet address.

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

#### Query Parameters

| Name                                      | Type    | Description                                                                                               |
| ----------------------------------------- | ------- | --------------------------------------------------------------------------------------------------------- |
| rpc                                       | String  | Remote procedural call URL.                                                                               |
| chainId                                   | String  | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details.      |
| chainSymbol                               | String  | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details.      |
| address<mark style="color:red;">\*</mark> | String  | Public addess of the user.                                                                                |
| tokens                                    | String  | Comma-separated value of ERC-20 tokens to get value of. Maximum 10 at a time.                             |
| availableOnly                             | Boolean | <p>By default, false. <br>If true, tokens with balance > 0 will be listed.</p>                            |
| pageToken                                 | String  | Present at the end of a lengthy response to fetch the next page.                                          |
| assetType                                 | String  | <p><code>fungible</code>/<code>nonFungible</code> standard choice.  <br>By default, <code>all</code>.</p> |

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

```url
https://api.expand.network/chain/portfolio?chainId=8453&address=0xA5af143fd6f6093FDcF6D51d3641F08eaa07d53f&availableOnly=true
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "native": "3975672043073686",
        "evmTokens": [
            {
                "name": "The Doge NFT",
                "symbol": "DOG",
                "decimals": "18",
                "address": "0xafb89a09d82fbde58f18ac6437b3fc81724e4df6",
                "balance": "10000000000000000000",
                "assetType": "ERC20",
                "USDPrice": "0.013040102445834898"
            }
        ]
    }
}
```

{% endtab %}
{% endtabs %}

### **/sendtransaction**

## Send transaction on the chain.

<mark style="color:green;">`POST`</mark> `https://api.expand.network/chain/sendtransaction`

#### Request Body

| Name                                             | Type   | Description                                                                                          |
| ------------------------------------------------ | ------ | ---------------------------------------------------------------------------------------------------- |
| rpc                                              | String | Remote procedural call URL.                                                                          |
| chainId<mark style="color:red;">\*</mark>        | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| chainSymbol                                      | String | Refer to the [Chain ID ](/~/changes/CwwHZ0oIeFsEWwiEWd1b/important-ids/chain-id.md)page for details. |
| rawTransaction<mark style="color:red;">\*</mark> | String | The encoded transaction, obtained from the signed transaction.                                       |

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

```json
{
    "chainId": "8453",
    "rawTransaction": "0xf86a80830f4272830a3d8794a67e9b68c41b0f26184d64c26e0b2b81466e5994843b9aca00808302948ca0e073bcaa02ab49f019278be707e3e50433ac7ae6107649a8b1cbdbc368e9482ea05ba36d559c5b70ffa289f90a572adc0863c46fdd067c40c2f37b9ea666fcc8e7"
}
```

{% endtab %}

{% tab title="Sample Response" %}

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "8453",
        "transactionHash": "0x2e5309f53a8c11841afc88c12c099e5c5c59271379fa3cc65df863fa18a64a60" 
    }
}
```

{% 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/~/changes/CwwHZ0oIeFsEWwiEWd1b/integrations/blockchain/evm-based-blockchains/base.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.