curl --request GET \
  --url https://api.lyceum.technology/api/v2/external/billing/credits \
  --header 'Authorization: Bearer <token>'

{
  "available_credits": 123,
  "used_credits": 123,
  "total_credits_used": 123,
  "remaining_credits": 123,
  "monthly_free_credits": 0,
  "purchased_credits": 0
}