curl --request GET \
  --url https://{cluster}.cognitedata.com/api/v1/projects/{project}/models/statistics \
  --header 'Authorization: Bearer <token>'

{
  "spaces": {
    "count": 123,
    "limit": 123
  },
  "containers": {
    "count": 123,
    "limit": 123
  },
  "views": {
    "count": 123,
    "limit": 123
  },
  "dataModels": {
    "count": 123,
    "limit": 123
  },
  "containerProperties": {
    "count": 123,
    "limit": 123
  },
  "instances": {
    "edges": 123,
    "softDeletedEdges": 123,
    "nodes": 123,
    "softDeletedNodes": 123,
    "instances": 123,
    "instancesLimit": 123,
    "softDeletedInstances": 123,
    "softDeletedInstancesLimit": 123
  },
  "concurrentReadLimit": 123,
  "concurrentWriteLimit": 123,
  "concurrentDeleteLimit": 2
}