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

{
  "description": "<string>",
  "welcome_channels": [
    {
      "channel_id": "<string>",
      "description": "<string>",
      "emoji_id": "<unknown>",
      "emoji_name": "<string>"
    }
  ]
}