How to get only Odata.Count without value

Set the $top to zero and $count to true.

For example: http://services.odata.org/V4/Northwind/Northwind.svc/Customers?$count=true&$top=0

returns the count but no results

{
    "@odata.context": "http://services.odata.org/V4/Northwind/Northwind.svc/$metadata#Customers",
    "@odata.count": 91,
    "value": []
}

Count is calculated after applying the $filter, but without factoring in $top and $skip.

For example: http://services.odata.org/V4/Northwind/Northwind.svc/Customers?$count=true&$top=0&$filter=Country%20eq%20%27Germany%27

informs you that there are 11 results where the Country is 'Germany', but without returning any records in the response.

You can also append $count as a path element to just get a raw count, E.G.,

https://services.odata.org/V4/Northwind/Northwind.svc/Customers/$count

This will also work with filters, etc, applied: https://services.odata.org/V4/Northwind/Northwind.svc/Customers/$count?$filter=Country%20eq%20%27Germany%27

For a count of Customers in Germany.