[role="xpack"]
[[security-api-get-api-key]]
=== Get API key information API
++++
<titleabbrev>Get API key information</titleabbrev>
++++

Retrieves information for one or more API keys.

[[security-api-get-api-key-request]]
==== {api-request-title}

`GET /_security/api_key`

[[security-api-get-api-key-prereqs]]
==== {api-prereq-title}

* To use this API, you must have at least the `manage_api_key` cluster privilege.

[[security-api-get-api-key-desc]]
==== {api-description-title}

The information for the API keys created by
<<security-api-create-api-key,create API Key>> can be retrieved using this API.

[[security-api-get-api-key-request-body]]
==== {api-request-body-title}

The following parameters can be specified in the query parameters of a GET request and
pertain to retrieving api keys:

`id`::
(Optional, string) An API key id. This parameter cannot be used with any of 
`name`, `realm_name` or `username` are used.

`name`::
(Optional, string) An API key name. This parameter cannot be used with any of
`id`, `realm_name` or `username` are used.

`realm_name`::
(Optional, string) The name of an authentication realm. This parameter cannot be
used with either `id` or `name` or when `owner` flag is set to `true`.

`username`::
(Optional, string) The username of a user. This parameter cannot be used with
either `id` or `name` or when `owner` flag is set to `true`.

`owner`::
(Optional, boolean) A boolean flag that can be used to query API keys owned
by the currently authenticated user. Defaults to false. 
The 'realm_name' or 'username' parameters cannot be specified when this
parameter is set to 'true' as they are assumed to be the currently authenticated ones.

NOTE: At least one of "id", "name", "username" and "realm_name" must be specified
 if "owner" is "false" (default).

[[security-api-get-api-key-example]]
==== {api-examples-title}

If you create an API key as follows:

[source,console]
------------------------------------------------------------
POST /_security/api_key
{
  "name": "my-api-key",
  "role_descriptors": {}
}
------------------------------------------------------------

A successful call returns a JSON structure that provides
API key information. For example:

[source,console-result]
--------------------------------------------------
{
  "id":"VuaCfGcBCdbkQm-e5aOx",
  "name":"my-api-key",
  "api_key":"ui2lp2axTNmsyakw9tvNnw"
}
--------------------------------------------------
// TESTRESPONSE[s/VuaCfGcBCdbkQm-e5aOx/$body.id/]
// TESTRESPONSE[s/ui2lp2axTNmsyakw9tvNnw/$body.api_key/]

You can use the following example to retrieve the API key by ID:

[source,console]
--------------------------------------------------
GET /_security/api_key?id=VuaCfGcBCdbkQm-e5aOx
--------------------------------------------------
// TEST[s/VuaCfGcBCdbkQm-e5aOx/$body.id/]
// TEST[continued]

You can use the following example to retrieve the API key by name:

[source,console]
--------------------------------------------------
GET /_security/api_key?name=my-api-key
--------------------------------------------------
// TEST[continued]

The following example retrieves all API keys for the `native1` realm:

[source,console]
--------------------------------------------------
GET /_security/api_key?realm_name=native1
--------------------------------------------------
// TEST[continued]

The following example retrieves all API keys for the user `myuser` in all realms:

[source,console]
--------------------------------------------------
GET /_security/api_key?username=myuser
--------------------------------------------------
// TEST[continued]

The following example retrieves all API keys owned by the currently authenticated user:

[source,console]
--------------------------------------------------
GET /_security/api_key?owner=true
--------------------------------------------------
// TEST[continued]

Following creates an API key

[source,console]
------------------------------------------------------------
POST /_security/api_key
{
  "name": "my-api-key-1"
}
------------------------------------------------------------

The following example retrieves the API key identified by the specified `id` if
it is owned by the currently authenticated user:

[source,console]
--------------------------------------------------
GET /_security/api_key?id=VuaCfGcBCdbkQm-e5aOx&owner=true
--------------------------------------------------
// TEST[s/VuaCfGcBCdbkQm-e5aOx/$body.id/]
// TEST[continued]

Finally, the following example retrieves all API keys for the user `myuser` in
 the `native1` realm immediately:

[source,console]
--------------------------------------------------
GET /_security/api_key?username=myuser&realm_name=native1
--------------------------------------------------
// TEST[continued]

A successful call returns a JSON structure that contains the information of one or more API keys that were retrieved.

[source,js]
--------------------------------------------------
{
  "api_keys": [ <1>
    {
      "id": "dGhpcyBpcyBub3QgYSByZWFsIHRva2VuIGJ1dCBpdCBpcyBvbmx5IHRlc3QgZGF0YS4gZG8gbm90IHRyeSB0byByZWFkIHRva2VuIQ==", <2>
      "name": "hadoop_myuser_key", <3>
      "creation": 1548550550158, <4>
      "expiration": 1548551550158, <5>
      "invalidated": false, <6>
      "username": "myuser", <7>
      "realm": "native1" <8>
    },
    {
      "id": "api-key-id-2",
      "name": "api-key-name-2",
      "creation": 1548550550158,
      "invalidated": false,
      "username": "user-y",
      "realm": "realm-2"
    }
  ]
}
--------------------------------------------------
// NOTCONSOLE

<1> The list of API keys that were retrieved for this request.
<2> Id for the API key
<3> Name of the API key
<4> Creation time for the API key in milliseconds
<5> Optional expiration time for the API key in milliseconds
<6> Invalidation status for the API key. If the key has been invalidated, it has
a value of `true`. Otherwise, it is `false`.
<7> Principal for which this API key was created
<8> Realm name of the principal for which this API key was created