curl --request POST \
  --url https://astrasend-mocha.vercel.app/api/public/agents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Booking bot",
  "channel": "voice",
  "system_prompt": "You book callbacks for Acme.",
  "greeting": "Hi, this is Acme!",
  "voice_id": "voice_abc"
}
'

{
  "ok": true
}