curl --request GET \
  --url https://discord.com/api/v10/applications/{application_id}/guilds/{guild_id}/commands \
  --header 'Authorization: <api-key>'

[
  {
    "id": "<string>",
    "application_id": "<string>",
    "version": "<string>",
    "default_member_permissions": "<string>",
    "type": 123,
    "name": "<string>",
    "description": "<string>",
    "name_localized": "<string>",
    "name_localizations": {},
    "description_localized": "<string>",
    "description_localizations": {},
    "guild_id": "<string>",
    "dm_permission": true,
    "contexts": [
      123
    ],
    "integration_types": [
      123
    ],
    "options": [
      {
        "type": 11,
        "name": "<string>",
        "description": "<string>",
        "name_localized": "<string>",
        "name_localizations": {},
        "description_localized": "<string>",
        "description_localizations": {},
        "required": true
      }
    ],
    "nsfw": true
  }
]