> For the complete documentation index, see [llms.txt](https://docs.kaiko.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaiko.com/rest-api/data-feeds/reference-data/basic-tier/blockchain-codes.md).

# Blockchain codes

{% hint style="info" %}
You can explore all exchanges, assets, and get codes for them using our [instrument explorer](https://instruments.kaiko.com/#/instruments). Alternatively, if you want to obtain the data in a more programmatic way, use this endpoint.
{% endhint %}

### What is this endpoint for?

This endpoint retrieves the list of blockchains and associated codes.

### Endpoint

```
https://reference-data-api.kaiko.io/v1/blockchains
```

### Parameters

No parameters supported

### Fields

| Field    | Description                                  |
| -------- | -------------------------------------------- |
| `id`     | The blockchain's id in our reference data.   |
| `name`   | The blockchain's name in our reference data. |
| `is_evm` | If the blockchain is EVM-Compatible or not.  |

### Request example

{% tabs %}
{% tab title="cURL" %}
{% code overflow="wrap" %}

```url
curl --compressed -H 'Accept: application/json' 'https://reference-data-api.kaiko.io/v1/blockchains'
```

{% endcode %}
{% endtab %}
{% endtabs %}

### Response example

{% tabs %}
{% tab title="JSON" %}
{% code fullWidth="false" %}

```json
{
    "result":"success",
    "count": 10,
    "data":
    [
        {"id":1,"name":"ethereum","is_evm":true},
        {"id":2,"name":"bsc","is_evm":true},
        {"id":3,"name":"polygon","is_evm":true},
        {"id":4,"name":"arbitrum","is_evm":true},
        {"id":5,"name":"avalanche","is_evm":true},
        /* ... */
    ]
}
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

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