Getting the service account ID

If you don't have a service account yet, create one.

Management console

CLI

API

Go to the folder that the service account belongs to.
Go to the Service accounts tab.
Choose a service account and click the line with its name.
For the service account ID, see Overview:

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

If you know the service account name, use the get command to get the account ID:

$ yc iam service-account get my-robot

id: aje6o61dvog2h6g9a33s
...

If you don't know the name, get a list of service accounts in the default folder:

$ yc iam service-account list
+----------------------+------------------+-------------------------------+
|          ID          |       NAME       |          DESCRIPTION          |
+----------------------+------------------+-------------------------------+
| aje6o61dvog2h6g9a33s | my-robot         |                               |
| aje9sda1ufvqcmfksd3f | blabla           | bla bla bla is my description |
+----------------------+------------------+-------------------------------+

Get the ID of the folder that the service account was created in.

Get information about the service accounts in the folder using the list method:

$ export FOLDER_ID=b1gvmob95yysaplct532
$ export IAM_TOKEN=CggaATEVAgA...
$ curl -H "Authorization: Bearer ${IAM_TOKEN}" \
    "https://iam.api.cloud.yandex.net/iam/v1/serviceAccounts?folderId=${FOLDER_ID}"

{
 "serviceAccounts": [
  {
   "id": "ajebqtreob2dpblin8pe",
   "folderId": "b1gvmob95yysaplct532",
   "createdAt": "2018-10-18T13:42:40Z",
   "name": "my-robot",
   "description": "my description"
  }
 ]
}