# List all Kafka Clusters

With this endpoint, you can retrieve a list of Kafka clusters.

## Endpoint

`GET /clusters`

The `GET /clusters` endpoint retrieves a collection of Kafka clusters.

This endpoint provides essential information about each cluster, including its ID, metadata, properties, and connections. Use the response data to manage and monitor Kafka clusters within your environment effectively.

## Request

```bash
curl -X 'GET' \
  'https://kafka.de-txl.ionos.com/clusters' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer $Token'
```

{% tabs %}
{% tab title="Request Header Parameters" %}
To make authenticated requests to the API, the following fields are mandatory in the request header:

| Header Parameters | Required | Type   | Description                                                  |
| ----------------- | -------- | ------ | ------------------------------------------------------------ |
| `Accept`          | yes      | string | Set this to `application/json`.                              |
| `Authorization`   | yes      | string | Provide a header value as `Bearer` followed by your `token`. |
| {% endtab %}      |          |        |                                                              |
| {% endtabs %}     |          |        |                                                              |

## Response

**200 Successful operation**

```json
{
  "id": "ed17eb1f-ac43-5670-9e63-8be33c475449",
  "type": "collection",
  "href": "/clusters",
  "items": [
    {
      "id": "e69b22a5-8fee-56b1-b6fb-4a07e4205ead",
      "type": "cluster",
      "href": "/clusters/e69b22a5-8fee-56b1-b6fb-4a07e4205ead",
      "metadata": {
        "createdDate": "2020-12-10T13:37:50+01:00",
        "createdBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
        "createdByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
        "lastModifiedDate": "2020-12-11T13:37:50+01:00",
        "lastModifiedBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
        "lastModifiedByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
        "resourceURN": "ionos:<product>:<location>:<contract>:<resource-path>",
        "state": "AVAILABLE",
        "brokerAddresses": [
          "192.168.1.101:9093",
          "192.168.1.102:9093",
          "192.168.1.103:9093"
        ]
      },
      "properties": {
        "name": "my-kafka-cluster",
        "version": "3.9.0",
        "size": "S",
        "connections": [
          {
            "datacenterId": "5a029f4a-72e5-11ec-90d6-0242ac120003",
            "lanId": "2",
            "brokerAddresses": [
              "192.168.1.101/24",
              "192.168.1.102/24",
              "192.168.1.103/24"
            ]
          }
        ]
      }
    }
  ]
}
```


---

# 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.ionos.com/cloud/data-analytics/kafka/api-howtos/fetch-all-kafka.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.