# Get Extension

**GET /deployments/extensions/{extension_id}**

Retrieves an extension.


## Servers
- https://api.elastic-cloud.com/api/v1: https://api.elastic-cloud.com/api/v1 ()



## Parameters

### Path parameters
- **extension_id** (string)
  Id of an extension

### Query parameters
- **include_deployments** (boolean)
  Include deployments referencing this extension. Up to only 10000 deployments will be included.


## Responses
### 200
The Extension
#### Headers
- **x-cloud-resource-version** (string)
  The resource version, which is used to avoid update conflicts with concurrent operations
- **x-cloud-resource-created** (string)
  The date-time when the resource was created (ISO format relative to UTC)
- **x-cloud-resource-last-modified** (string)
  The date-time when the resource was last modified (ISO format relative to UTC)

#### Body: application/json (object)
- **id** (string)
  The extension ID
- **name** (string)
  The extension name.
- **description** (string)
  The extension description.
- **url** (string)
  The extension URL to be used in the plan.
- **download_url** (string)
  The download URL specified during extension creation.
- **extension_type** (string)
  The extension type.
- **version** (string)
  The Elasticsearch version.
- **deployments** (array[string])
  List of deployments using this extension. Up to only 10000 deployments will be included in the list.
- **file_metadata** (object)


### 404
The extension requested does not exist. (code: `extensions.not_found`)
#### Headers
- **x-cloud-error-codes** (string)
  The error codes associated with the response

#### Body: application/json (object)
- **errors** (array[object])
  A list of errors that occurred in the failing request


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