curl --request POST \
  --url https://api.gptmaker.ai/v2/agent/{agentId}/create-channel \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "type": "WHATSAPP"
}
'

{
  "id": "<string>",
  "name": "<string>",
  "type": "WHATSAPP"
}