Use ListAccounts with an Amazon SDK or CLI

    using System;
    using System.Threading.Tasks;
    using Amazon.Organizations;
    using Amazon.Organizations.Model;

    /// <summary>
    /// Uses the AWS Organizations service to list the accounts associated
    /// with the default account.
    /// </summary>
    public class ListAccounts
    {
        /// <summary>
        /// Creates the Organizations client and then calls its
        /// ListAccountsAsync method.
        /// </summary>
        public static async Task Main()
        {
            // Create the client object using the default account.
            IAmazonOrganizations client = new AmazonOrganizationsClient();

            var request = new ListAccountsRequest
            {
                MaxResults = 5,
            };

            var response = new ListAccountsResponse();
            try
            {
                do
                {
                    response = await client.ListAccountsAsync(request);
                    response.Accounts.ForEach(a => DisplayAccounts(a));
                    if (response.NextToken is not null)
                    {
                        request.NextToken = response.NextToken;
                    }
                }
                while (response.NextToken is not null);
            }
            catch (AWSOrganizationsNotInUseException ex)
            {
                Console.WriteLine(ex.Message);
            }
        }

        /// <summary>
        /// Displays information about an Organizations account.
        /// </summary>
        /// <param name="account">An Organizations account for which to display
        /// information on the console.</param>
        private static void DisplayAccounts(Account account)
        {
            string accountInfo = $"{account.Id} {account.Name}\t{account.Status}";

            Console.WriteLine(accountInfo);
        }
    }

To retrieve a list of all of the accounts in an organization

The following example shows you how to request a list of the accounts in an organization:

aws organizations list-accounts

The output includes a list of account summary objects.

{
        "Accounts": [
                {
                        "Arn": "arn:aws:organizations::111111111111:account/o-exampleorgid/111111111111",
                        "JoinedMethod": "INVITED",
                        "JoinedTimestamp": 1481830215.45,
                        "Id": "111111111111",
                        "Name": "Master Account",
                        "Email": "bill@example.com",
                        "Status": "ACTIVE"
                },
                {
                        "Arn": "arn:aws:organizations::111111111111:account/o-exampleorgid/222222222222",
                        "JoinedMethod": "INVITED",
                        "JoinedTimestamp": 1481835741.044,
                        "Id": "222222222222",
                        "Name": "Production Account",
                        "Email": "alice@example.com",
                        "Status": "ACTIVE"
                },
                {
                        "Arn": "arn:aws:organizations::111111111111:account/o-exampleorgid/333333333333",
                        "JoinedMethod": "INVITED",
                        "JoinedTimestamp": 1481835795.536,
                        "Id": "333333333333",
                        "Name": "Development Account",
                        "Email": "juan@example.com",
                        "Status": "ACTIVE"
                },
                {
                        "Arn": "arn:aws:organizations::111111111111:account/o-exampleorgid/444444444444",
                        "JoinedMethod": "INVITED",
                        "JoinedTimestamp": 1481835812.143,
                        "Id": "444444444444",
                        "Name": "Test Account",
                        "Email": "anika@example.com",
                        "Status": "ACTIVE"
                }
        ]
}