curl --request GET \
  --url 'https://api.example.com/api/v1/agency/billing/{billing_plan_id}?api_key='

{
  "message": "Data retrieved successfully",
  "meta": {},
  "data": {
    "name": "<string>",
    "description": "<string>",
    "bots_count": 123,
    "queries_count": 123,
    "words_count": 123,
    "voice_seconds": 123,
    "premium_support": true,
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "default_plan": false,
    "remove_branding": false,
    "advanced_intents": false,
    "auto_intents": false,
    "billing_plan_group": "<string>",
    "credits": {},
    "attributes": {},
    "agency_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "user_count": 0,
    "plan_lookup_key": "<string>"
  }
}