curl --request GET \
  --url https://api.tapti.ai/fusion/user-accounts \
  --header 'x-api-key: <api-key>'

{
  "accounts": [
    {
      "id": "123e4567-e89b-12d3-a456-426614174000",
      "user_platform": "YOUTUBE",
      "platform_account_id": "UC_12345678",
      "display_name": "John Doe"
    }
  ]
}