---
type: api
title: Get cluster info
description: Get basic build, version, and cluster information.
url: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v8/operation/operation-info
resource: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v8/operation/operation-info
products:
  - Elasticsearch
---

# Get cluster info

Availability:

## Paths

- `GET` `/`

- [Api key auth](/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v8/authentication#apikeyauth)
- [Basic auth](/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v8/authentication#basicauth)
- [Bearer auth](/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v8/authentication#bearerauth)

## Description

Get basic build, version, and cluster information.
::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.

## Required authorization

* Cluster privileges: `monitor`

## Response

`application/json`

- `cluster_name` (string Name)
  The responding cluster's name.
- `cluster_uuid` (string)
- `name` (string Name)
  The responding node's name.
- `tagline` (string)
- `version` ({} ElasticsearchVersionInfo)
  The running version of Elasticsearch.
  - `build_date` (DateTime)
    The Elasticsearch Git commit's date.
  - `build_flavor` (string)
    The build flavor. For example, `default`.
  - `build_hash` (string)
    The Elasticsearch Git commit's SHA hash.
  - `build_snapshot` (boolean)
    Indicates whether the Elasticsearch build was a snapshot.
  - `build_type` (string)
    The build type that corresponds to how Elasticsearch was installed.
For example, `docker`, `rpm`, or `tar`.
  - `lucene_version` (string)
    The version number of Elasticsearch's underlying Lucene software.
  - `minimum_index_compatibility_version` (string)
    The minimum index version with which the responding node can read from disk.
  - `minimum_wire_compatibility_version` (string)
    The minimum node version with which the responding node can communicate.
Also the minimum version from which you can perform a rolling upgrade.
  - `number` (string)
    The Elasticsearch version number.

::: IMPORTANT: For Serverless deployments, this static value is always `8.11.0` and is used solely for backward compatibility with legacy clients.
 Serverless environments are versionless and automatically upgraded, so this value can be safely ignored.
## Code Examples

#### Console

```console
GET /
```

#### JavaScript

```javascript
const response = await client.info();
```

#### Python

```python
resp = client.info()
```

#### curl

```curl
curl -X GET "$ELASTICSEARCH_URL/" \
  -H "Authorization: ApiKey $ELASTIC_API_KEY"
```

#### Java

```java
client.info();
```

#### C#

```c#
var response = await client.InfoAsync();
```

#### PHP

```php
$resp = $client->info();
```

#### Ruby

```ruby
response = client.info
```

## Response Examples

#### Stack response

A successful response from `GET /`.

```json
{
  "name": "instance-0000000000",
  "cluster_name": "my_test_cluster",
  "cluster_uuid": "zk-HjQtYQGyL3NFSSu7InA",
  "version": {
    "number": "9.1.0",
    "build_flavor": "default",
    "build_type": "docker",
    "build_hash": 0,
    "build_date": "2025-07-09T22:10:13.578Z",
    "build_snapshot": false,
    "lucene_version": "10.2.2",
    "minimum_wire_compatibility_version": "8.19.0",
    "minimum_index_compatibility_version": "8.0.0"
  },
  "tagline": "You Know, for Search"
}
```

#### Serverless response

A successful response from `GET /` on Serverless. This API is retained for backward compatibility only. Some fields, such as the version number, return static values and should be ignored.

```json
{
  "name": "serverless",
  "cluster_name": "my_test_serverless_cluster",
  "cluster_uuid": "8xx0pi24Squnf4PFDOAtwg",
  "version": {
    "number": "8.11.0",
    "build_flavor": "serverless",
    "build_type": "docker",
    "build_hash": 0,
    "build_date": "2023-10-31T00:00:00.000Z",
    "build_snapshot": false,
    "lucene_version": "9.7.0",
    "minimum_wire_compatibility_version": "8.11.0",
    "minimum_index_compatibility_version": "8.11.0"
  },
  "tagline": "You Know, for Search"
}
```